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Wakayama weather & best time to visit

City break

Wakayama at a glance

Best time
Apr – Jun, Oct – Nov
Warmest month
Aug · 33°
Warmest sea
Aug · 27.0°
Sunshine a year
2,080 h
Rain a year
1,485 mm
Climate
Temperate
Time zone
UTC+9
Elevation
8 m

Climate in Wakayama

Wakayama has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 33 °C, while January is the coolest at 10 °C. With around 2,080 hours of sunshine a year, Wakayama is moderately sunny; August is the sunniest month with 7.4 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Wakayama

The best time to visit Wakayama is from April to June and from October to November. In October, though, the typhoon season is at its peak: check the forecast before you go. For a beach holiday – sea from 21 °C, warm and mostly dry – go in August and in October. For sightseeing, day trips and hiking, conditions are most comfortable from April to May and from October to November. Rain is frequent in July and in September; the wettest month is June with 197 mm.

Wakayama through the seasons

How the weather changes over the seasons, with averages for each.

Wakayama in spring

Mar – May

71

Good

  • 14–24 °C by day
  • Sea 16 °C
  • 6.3 h of sun a day
  • 33 rainy days in all

Wakayama in summer

Jun – Aug

53

Fair

  • 27–33 °C by day
  • Sea 25 °C
  • 6.2 h of sun a day
  • 37 rainy days in all

Wakayama in autumn

Sep – Nov

70

Good

  • 18–29 °C by day
  • Sea 24 °C
  • 5.3 h of sun a day
  • 30 rainy days in all

Wakayama in winter

Dec – Feb

43

Fair

  • 10–13 °C by day
  • Sea 16 °C
  • 4.9 h of sun a day
  • 24 rainy days in all

Which month for what?

Beach & swimming

Aug, Oct

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Apr – May, Oct – Nov

15–28 °C and not too much rain

Rainy months

Jul, Sep

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in Wakayama for you.

Swimming in the sea
Sunshine
Little rain

Your best months: May, October

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

75

Holiday weather in October

Good

Best time to visit: April – June, October – November

October is the peak of the typhoon season Hurricane season

Good forBeach & swimmingSightseeing & walks

Keep in mindStorm season

A typical day in October

  1. Morning, 08:00: about 19°
  2. Midday, 13:00: about 23°
  3. Afternoon, 16:00: about 23°
  4. Evening, 20:00: about 19°
  5. Night, 23:00: about 18°

06:0317:26

Pleasant evenings; a light layer can help.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 05:48–06:37 · evening 16:53–17:42
Blue hour
Morning 05:38–05:48 · evening 17:42–17:52

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Wakayama compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 26° at the start of the month to 21° at the end. The sea cools from 25° to 22°. The days get 1.0 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high26°21°
Night-time low19°13°
Sea25°22°
Daylight11.9 h10.9 h

What is the weather like in Wakayama in October?

In October, Wakayama is warm: daytime highs average 24 °C, and nights cool down to about 16 °C. The sea averages 23.8 °C – pleasant for swimming. Expect around 5.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 160 mm in total. All in all, October is a good month for a holiday in Wakayama.

More details for October

Daylight
11 h 23 min06:03 – 17:26
UV index
5 · moderateclear sky, noon (estimate)All months
Muggy days
5 daysdew point 18 °C or moreAll months
Wind
14 km/haverage daily peakAll months
Cloud cover
52 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+9offset from UTC

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %40 %
  • Few rainy daysweight 30 %56 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • Swimwear
  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Wakayama

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

October and April bring similar holiday weather to Wakayama (score 75 and 78). In April, days are 4 °C cooler than in October. The sea is 8 °C cooler in April. April has one more rainy day. The sun shines an hour longer a day in April.

October vs April, Wakayama
MonthOctoberApril
Holiday weather score7578
Daytime high24°20°
Night-time low16°11°
Sea23.8°16.0°
Sunshine5.4 h6.5 hbetter
Rainy days10better11
Rainfall160 mm114 mmbetter
Muggy days50better

Based on the climate averages 1996–2025.

Wakayama month by month

The typical weather for every month at a glance.

38January10° · Sea 15° · 4.9 h

In January, Wakayama is cool: daytime highs average 10 °C, and nights cool down to about 3 °C. The sea averages 15.2 °C – swimming is only for the hardy. Expect around 4.9 hours of sunshine a day. Rain falls on about 8 days, adding up to 60 mm. All in all, January is not an ideal month for a holiday in Wakayama.

Wakayama in January
42February11° · Sea 14° · 5.1 h

In February, Wakayama is cool: daytime highs average 11 °C, and nights cool down to about 3 °C. The sea averages 13.8 °C – swimming is only for the hardy. Expect around 5.1 hours of sunshine a day. Rain falls on about 8 days, adding up to 66 mm. All in all, February is a so-so month for a holiday in Wakayama.

Wakayama in February
56March14° · Sea 14° · 5.8 h

In March, Wakayama is cool: daytime highs average 14 °C, and nights cool down to about 6 °C. The sea averages 14.2 °C – swimming is only for the hardy. Expect around 5.8 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 106 mm in total. All in all, March is a so-so month for a holiday in Wakayama.

Wakayama in March
78April20° · Sea 16° · 6.5 h

In April, Wakayama is mild: daytime highs average 20 °C, and nights cool down to about 11 °C. The sea averages 16.0 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. Rain is frequent, with about 11 rainy days and 114 mm in total. All in all, April is a good month for a holiday in Wakayama.

Wakayama in April
78May24° · Sea 19° · 6.6 h

In May, Wakayama is warm: daytime highs average 24 °C, and nights cool down to about 16 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 6.6 hours a day. Rain is frequent, with about 11 rainy days and 142 mm in total. All in all, May is a good month for a holiday in Wakayama.

Wakayama in May
67June27° · Sea 22° · 5.1 h

In June, Wakayama is hot: daytime highs average 27 °C, and even at night it stays warm at around 20 °C. The sea averages 21.7 °C – refreshing for a swim. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 197 mm in total. The air is often humid and muggy. All in all, June is a good month for a holiday in Wakayama.

Wakayama in June
47July31° · Sea 25° · 6.1 h

In July, Wakayama is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 25.0 °C – pleasant for swimming. Expect around 6.1 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 187 mm in total. On about 20 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a so-so month for a holiday in Wakayama.

Wakayama in July
46August33° · Sea 27° · 7.4 h

In August, Wakayama is hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sea averages 27.0 °C – lovely and warm for swimming. The sun shines for around 7.4 hours a day. Rain is frequent, with about 11 rainy days and 126 mm in total. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Wakayama.

Wakayama in August
58September29° · Sea 26° · 5.6 h

In September, Wakayama is hot: daytime highs average 29 °C, and even at night it stays warm at around 22 °C. The sea averages 26.3 °C – lovely and warm for swimming. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 175 mm in total. On about 11 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Wakayama.

Wakayama in September
75October24° · Sea 24° · 5.4 h

In October, Wakayama is warm: daytime highs average 24 °C, and nights cool down to about 16 °C. The sea averages 23.8 °C – pleasant for swimming. Expect around 5.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 160 mm in total. All in all, October is a good month for a holiday in Wakayama.

Wakayama in October
78November18° · Sea 21° · 5.0 h

In November, Wakayama is mild: daytime highs average 18 °C, and nights cool down to about 10 °C. The sea averages 20.8 °C – refreshing for a swim. Expect around 5.0 hours of sunshine a day. Rain falls on about 8 days, adding up to 87 mm. All in all, November is a good month for a holiday in Wakayama.

Wakayama in November
50December13° · Sea 18° · 4.8 h

In December, Wakayama is cool: daytime highs average 13 °C, and nights cool down to about 6 °C. The sea averages 17.8 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.8 hours of sunshine a day. Rain falls on about 8 days, adding up to 64 mm. All in all, December is a so-so month for a holiday in Wakayama.

Wakayama in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Wakayama

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°
  • Warm 20–24°
  • Hot 24° and more
  • muggy month (15+ muggy days)

PleasantOctober: nights around 16°. Ideal for sleeping, often with the window open. Muggy on about 5 days (dew point 18 °C or more).

The coolest nights are in January (3°), the warmest in August (25°). Tropical nights of 20 °C and more are the rule from June to September; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in May and in October. Nights fall below 8 °C on average from December to March, so the room should be heated. It is muggy (dew point 18 °C or more) on about 109 days a year, mostly from June to September.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 24°Night 16°Sea 24°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan3810°3°15.2°4.9 h860
FebruaryFeb4211°3°13.8°5.1 h866
MarchMar5614°6°14.2°5.8 h11106
AprilApr7820°11°16.0°6.5 h11114
MayMay7824°16°18.5°6.6 h11142
JuneJun6727°20°21.7°5.1 h13197
JulyJul4731°24°25.0°6.1 h13187
AugustAug4633°25°27.0°7.4 h11126
SeptemberSep5829°22°26.3°5.6 h12175
OctoberOct7524°16°23.8°5.4 h10160
NovemberNov7818°10°20.8°5.0 h887
DecemberDec5013°6°17.8°4.8 h864

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

34.23° N, 135.17° E · 8 m · Asia/Tokyo

Sea temperature
Swimming calendar

Sea temperature in Wakayama

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October23.8°Cpleasant

8 in 10 years: 23.1 – 24.3 °C

Swimming season: Jun – Nov

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 23.8°8 in 10 years 23.1° – 24.3°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Wakayama ranges from 13.8 °C in February to 27.0 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.

From October to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 26.3 and 27.7 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan15.2°13.2°17.5°cold
FebruaryFeb13.8°11.8°16.6°cold
MarchMar14.2°12.0°17.1°cold
AprilApr16.0°14.7°18.1°cold
MayMay18.5°17.8°19.6°fresh
JuneJun21.7°21.0°22.4°refreshing
JulyJul25.0°24.0°26.0°pleasant
AugustAug27.0°26.3°27.7°warm
SeptemberSep26.3°25.4°27.3°warm
OctoberOct23.8°23.1°24.3°pleasant
NovemberNov20.8°20.0°21.5°refreshing
DecemberDec17.8°16.7°19.0°fresh
Sunshine
Sunshine

Sunshine hours in Wakayama

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,080 hours
Sunniest month
Aug · 7.4 h a day
Least sunshine
Dec · 4.8 h a day
OctoberSunshine 5.4 hDaylight 11.4 hShare of daylight 47 %
SunshineDaylight

In October, the sun shines for about 5.4 of 11.4 hours of daylight in Wakayama, 47 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Wakayama: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
1,485 mm on 124 days
Wettest month
Jun · 197 mm
Driest month
Jan · 60 mm
OctoberRainy days 10Rainfall 160 mm

In October, Wakayama has about 10 rainy days with 160 mm of rain in total.

UV index
Sun protection

UV index in Wakayama

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 11).

Minutes until sunburn in October

Very fair skin
about 25 min
Fair skin
about 30 min
Light brown skin
about 45 min
Olive skin
about 55 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds
Wind & clouds

Wind and clouds in Wakayama

How breezy and how cloudy Wakayama is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
15 km/h · gentle breeze
Windiest month
Mar · 17 km/h
Calmest month
Sep · 14 km/h
OctoberWind 14 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Wakayama typically peaks at 14 km/h during the day: Beaufort 3, gentle breeze.

Breezy months for windsurfing and kiting

The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
58 % · variable cloud
Clearest month
Dec · 49 %
Cloudiest month
Jun · 77 %
OctoberCloud cover 52 %Sunshine 5.4 h

In October, cloud covers on average 52 % of the sky over Wakayama: variable cloud, with about 5.4 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity
Heat & humidity

Heat and humidity in Wakayama

How often the day gets hot in Wakayama (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
62 days
Hottest month
Aug · 33 °C
Hot months
Jul – Aug

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 24 °C

In October, Wakayama has about 0 hot days, with an average daytime high of 24 °C: some hot or muggy days. Single hot or muggy days are possible; a hat and water bottle are enough.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Wakayama

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Wakayama in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Wakayama has its best school-holiday weather during May half-term (score 76) and its weakest during the Christmas holidays (score 44).

  • Easter holidays

    Mar – Apr

    71

    Good

    • 18 °C by day
    • Sea 15 °C
    • 6.3 h of sun a day
    • 11 rainy days a month
  • May half-term

    May – Jun

    76

    GoodBest holidays

    • 25 °C by day
    • Sea 19 °C
    • 6.3 h of sun a day
    • 11 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    46

    Fair

    • 32 °C by day
    • Sea 26 °C
    • 6.9 h of sun a day
    • 12 rainy days a month

    Keep in mind: Frequent rain, Storm season

  • October half-term

    Oct

    75

    Good

    • 24 °C by day
    • Sea 24 °C
    • 5.4 h of sun a day
    • 10 rainy days a month

    Good for: Beach & swimming, Sightseeing & walks

    Keep in mind: Storm season

  • Christmas holidays

    Dec – Jan

    44

    Fair

    • 11 °C by day
    • Sea 17 °C
    • 4.9 h of sun a day
    • 8 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 12 h
Distance
9,550 km
Time zone
UTC+9
Jet lag
About 8 days (8 h east)

Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.

Most routes need a change of planes, which adds time.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Good to know: Japan

Currency
Japanese Yen (JPY)
Language
Japanese
Sockets
Type A, B · 100 V
Traffic
Drives on the left
Dialling code
+81

UK plugs need a travel adapter

Only 100 V: chargers marked 100–240 V work, other devices need a voltage converter.

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Storm season

Wakayama lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

  1. January
  2. February
  3. March
  4. April
  5. May
  6. June: Season
  7. July: Season
  8. August: Peak
  9. September: Peak
  10. October: Peak
  11. November: Season
  12. December

Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.

Compare & alternatives

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Wakayama compared

Put Wakayama side by side with another destination.

Nearby:
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Wakayama vs Kobe

In October the holiday weather in Wakayama and Kobe is about equally good (score 75 vs 75). During the day it is about as warm in Kobe as in Wakayama. The sea in Kobe is 1 °C cooler. Kobe gets one more hour of sunshine a day.

Wakayama vs Kobe, in October
in OctoberWakayamaKobe
Holiday weather score7575
Daytime high24°24°
Sea24°23°
Sunshine5 h6 h
Rainy days1010
Best timeApr – Jun, Oct – NovApr – Jun, Oct – Nov

Through the year

OctoberWakayama 24°Kobe 24°
WakayamaKobe
Go to Kobe
Best places in the country
Ranking

Japan in October: the best places

In October, Wakayama ranks 7 among the 31 nearest destinations in this country.

  1. Fukuyama24°24°79
  2. 2Imabari24°24°79
  3. 3Takamatsu23°24°77
  4. 4Okayama24°24°77
  5. 5Kurashiki24°24°77
  6. 6Himeji23°24°76
  7. 7WakayamaThis page24°24°75
  8. 8Kobe24°23°75
All destinations: Japan
Places nearby

Near Wakayama

Other destinations close by.

Places with a similar climate

Places with a climate like Wakayama

Destinations whose weather through the year is closest to Wakayama's – good alternatives.

  1. 88 % similar79ImabariJapan24°24°Best time: Apr – Jun, Oct – Nov
  2. 87 % similar73IwakuniJapan24°23°Best time: Jul – Oct
  3. 87 % similar81HiroshimaJapan24°23°Best time: Apr – Jun, Oct – Nov
  4. 87 % similar75ItsukushimaJapan24°23°Best time: Jul – Oct

Frequently asked questions about Wakayama

When is the best time to visit Wakayama?

The best time to visit Wakayama is from April to June and from October to November. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Wakayama?

The sea temperature in Wakayama ranges from 13.8 °C in February to 27.0 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.

Can you swim in Wakayama in October?

Yes. In October the sea averages 23.8 °C – pleasant for swimming.

What is the warmest month in Wakayama?

August is the warmest month, with average highs of 33 °C and nights around 25 °C. January is the coolest month at 10 °C.

When does it rain most in Wakayama?

Rain is frequent in July and in September; the wettest month is June with 197 mm. The driest month is January with 60 mm.

How many hours of sunshine does Wakayama get?

Wakayama gets around 2,080 hours of sunshine a year. The sunniest month is August with 7.4 hours a day; in December there are 4.8 hours a day.

What time zone is Wakayama in?

Wakayama is on UTC+9 all year.

How long is the flight from London to Wakayama?

A nonstop flight from London to Wakayama takes about 12 h, for a straight-line distance of about 9,550 km. Most routes need a change of planes, which adds time.

When is typhoon season in Wakayama?

Wakayama lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

Which school holidays are best for Wakayama?

Wakayama has its best school-holiday weather during May half-term (score 76) and its weakest during the Christmas holidays (score 44). Holiday ratings (0–100): Easter holidays 71, May half-term 76, summer holidays 46, October half-term 75, Christmas holidays 44.