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Imabari weather & best time to visit

City break

Imabari at a glance

Best time
Apr – Jun, Oct – Nov
Warmest month
Aug · 33°
Warmest sea
Aug · 27.7°
Sunshine a year
2,030 h
Rain a year
1,386 mm
Climate
Temperate
Time zone
UTC+9
Elevation
6 m

Climate in Imabari

Imabari 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 2,030 hours of sunshine a year, Imabari is moderately sunny; August is the sunniest month with 7.1 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Imabari

The best time to visit Imabari 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 from July to October. For sightseeing, day trips and hiking, conditions are most comfortable from April to May and from October to November. In August it can get very hot, with highs of up to 33 °C. The wettest month is June with 201 mm of precipitation.

Imabari through the seasons

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

Imabari in spring

Mar – May

73

Good

  • 15–25 °C by day
  • Sea 15 °C
  • 6.3 h of sun a day
  • 29 rainy days in all

Imabari in summer

Jun – Aug

52

Fair

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

Imabari in autumn

Sep – Nov

73

Good

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

Imabari in winter

Dec – Feb

41

Fair

  • 10–13 °C by day
  • Sea 14 °C
  • 4.4 h of sun a day
  • 26 rainy days in all

Which month for what?

Beach & swimming

Jul – Oct

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Apr – May, Oct – Nov

15–28 °C and not too much rain

Peak heat

Aug

Highs of 33 °C or more

Find your perfect month

Tell us what you like and we rate every month in Imabari 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

79

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 18°
  2. Midday, 13:00: about 24°
  3. Afternoon, 16:00: about 23°
  4. Evening, 20:00: about 19°
  5. Night, 23:00: about 17°

06:1217:35

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 05:56–06:46 · evening 17:02–17:51
Blue hour
Morning 05:47–05:56 · evening 17:51–18:00

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 Imabari 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 low18°12°
Sea25°22°
Daylight11.9 h10.9 h

What is the weather like in Imabari in October?

In October, Imabari is warm: daytime highs average 24 °C, and nights cool down to about 15 °C. The sea averages 23.9 °C – pleasant for swimming. Expect around 5.6 hours of sunshine a day. Rain falls on about 9 days, adding up to 110 mm. All in all, October is a good month for a holiday in Imabari.

More details for October

Daylight
11 h 23 min06:12 – 17:35
UV index
5 · moderateclear sky, noon (estimate)All months
Muggy days
4 daysdew point 18 °C or moreAll months
Wind
20 km/haverage daily peakAll months
Cloud cover
49 %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 %43 %
  • Few rainy daysweight 30 %67 %

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 Imabari

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 May bring similar holiday weather to Imabari (score 79 and 81). In May, days are 1 °C warmer than in October. The sea is 6 °C cooler in May. The sun shines an hour longer a day in May.

October vs May, Imabari
MonthOctoberMay
Holiday weather score7981
Daytime high24°25°
Night-time low15°15°
Sea23.9°18.0°
Sunshine5.6 h6.9 hbetter
Rainy days99
Rainfall110 mmbetter142 mm
Muggy days42better

Based on the climate averages 1996–2025.

Imabari month by month

The typical weather for every month at a glance.

36January10° · Sea 14° · 4.2 h

In January, Imabari is cool: daytime highs average 10 °C, and nights cool down to about 2 °C. The sea averages 13.9 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. Rain falls on about 8 days, adding up to 53 mm. All in all, January is not an ideal month for a holiday in Imabari.

Imabari in January
41February11° · Sea 13° · 4.8 h

In February, Imabari is cool: daytime highs average 11 °C, and nights cool down to about 2 °C. The sea averages 12.6 °C – swimming is only for the hardy. Expect around 4.8 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 68 mm in total. All in all, February is a so-so month for a holiday in Imabari.

Imabari in February
59March15° · Sea 13° · 5.6 h

In March, Imabari is cool: daytime highs average 15 °C, and nights cool down to about 5 °C. The sea averages 12.8 °C – swimming is only for the hardy. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 106 mm in total. All in all, March is a so-so month for a holiday in Imabari.

Imabari in March
79April20° · Sea 15° · 6.4 h

In April, Imabari is mild: daytime highs average 20 °C, and nights cool down to about 10 °C. The sea averages 14.9 °C – swimming is only for the hardy. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 119 mm in total. All in all, April is a good month for a holiday in Imabari.

Imabari in April
81May25° · Sea 18° · 6.9 h

In May, Imabari is warm: daytime highs average 25 °C, and nights cool down to about 15 °C. The sea averages 18.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 6.9 hours a day. Rain is frequent, with about 9 rainy days and 142 mm in total. All in all, May is an excellent month for a holiday in Imabari.

Imabari in May
67June27° · Sea 22° · 5.3 h

In June, Imabari 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 5.3 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 201 mm in total. The air is often humid and muggy. All in all, June is a good month for a holiday in Imabari.

Imabari in June
46July31° · Sea 26° · 6.0 h

In July, Imabari is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 25.5 °C – pleasant for swimming. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 186 mm in total. On about 23 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 Imabari.

Imabari in July
43August33° · Sea 28° · 7.1 h

In August, Imabari is very hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sea averages 27.7 °C – lovely and warm for swimming. The sun shines for around 7.1 hours a day. Rain is frequent, with about 10 rainy days and 120 mm in total. On about 30 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 Imabari.

Imabari in August
60September29° · Sea 27° · 5.7 h

In September, Imabari is hot: daytime highs average 29 °C, and even at night it stays warm at around 21 °C. The sea averages 26.9 °C – lovely and warm for swimming. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 151 mm in total. On about 12 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Imabari.

Imabari in September
79October24° · Sea 24° · 5.6 h

In October, Imabari is warm: daytime highs average 24 °C, and nights cool down to about 15 °C. The sea averages 23.9 °C – pleasant for swimming. Expect around 5.6 hours of sunshine a day. Rain falls on about 9 days, adding up to 110 mm. All in all, October is a good month for a holiday in Imabari.

Imabari in October
79November18° · Sea 20° · 4.9 h

In November, Imabari is mild: daytime highs average 18 °C, and nights cool down to about 9 °C. The sea averages 19.9 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.9 hours of sunshine a day. Rain falls on about 7 days, adding up to 71 mm. All in all, November is a good month for a holiday in Imabari.

Imabari in November
47December13° · Sea 17° · 4.1 h

In December, Imabari is cool: daytime highs average 13 °C, and nights cool down to about 4 °C. The sea averages 16.5 °C – swimming is only for the hardy. Expect around 4.1 hours of sunshine a day. Rain falls on about 9 days, adding up to 61 mm. All in all, December is a so-so month for a holiday in Imabari.

Imabari 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 Imabari

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 15°. Ideal for sleeping, often with the window open. Muggy on about 4 days (dew point 18 °C or more).

The coolest nights are in January (2°), 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 106 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 15°Sea 24°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan3610°2°13.9°4.2 h853
FebruaryFeb4111°2°12.6°4.8 h968
MarchMar5915°5°12.8°5.6 h10106
AprilApr7920°10°14.9°6.4 h10119
MayMay8125°15°18.0°6.9 h9142
JuneJun6727°20°21.7°5.3 h12201
JulyJul4631°24°25.5°6.0 h12186
AugustAug4333°25°27.7°7.1 h10120
SeptemberSep6029°21°26.9°5.7 h11151
OctoberOct7924°15°23.9°5.6 h9110
NovemberNov7918°9°19.9°4.9 h771
DecemberDec4713°4°16.5°4.1 h961

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

34.07° N, 133.00° E · 6 m · Asia/Tokyo

Sea temperature
Swimming calendar

Sea temperature in Imabari

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

Sea in October23.9°Cpleasant

8 in 10 years: 23.1 – 24.5 °C

Swimming season: Jun – Oct

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 23.9°8 in 10 years 23.1° – 24.5°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Imabari ranges from 12.6 °C in February to 27.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.

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 26.6 and 28.7 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan13.9°12.2°16.9°cold
FebruaryFeb12.6°10.6°16.0°cold
MarchMar12.8°11.1°16.2°cold
AprilApr14.9°13.5°16.8°cold
MayMay18.0°17.2°18.9°fresh
JuneJun21.7°21.0°22.4°refreshing
JulyJul25.5°24.3°26.5°pleasant
AugustAug27.7°26.6°28.7°warm
SeptemberSep26.9°26.1°27.9°warm
OctoberOct23.9°23.1°24.5°pleasant
NovemberNov19.9°19.3°20.6°fresh
DecemberDec16.5°15.5°17.9°cold
Sunshine
Sunshine

Sunshine hours in Imabari

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

Per year
2,030 hours
Sunniest month
Aug · 7.1 h a day
Least sunshine
Dec · 4.1 h a day
OctoberSunshine 5.6 hDaylight 11.4 hShare of daylight 49 %
SunshineDaylight

In October, the sun shines for about 5.6 of 11.4 hours of daylight in Imabari, 49 % 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 Imabari: 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
1,386 mm on 115 days
Wettest month
Jun · 201 mm
Driest month
Jan · 53 mm
OctoberRainy days 9Rainfall 110 mm

In October, Imabari has about 9 rainy days with 110 mm of rain in total.

UV index
Sun protection

UV index in Imabari

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 Imabari

How breezy and how cloudy Imabari 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
19 km/h · gentle breeze
Windiest month
Jan · 23 km/h
Calmest month
Aug · 16 km/h
OctoberWind 20 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Imabari typically peaks at 20 km/h during the day: Beaufort 4, moderate breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Oct – Mar.

Clouds

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

Year average
59 % · variable cloud
Clearest month
Nov · 49 %
Cloudiest month
Jun · 76 %
OctoberCloud cover 49 %Sunshine 5.6 h

In October, cloud covers on average 49 % of the sky over Imabari: variable cloud, with about 5.6 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 Imabari

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

Hot days a year
68 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, Imabari has about 0 hot days, with an average daytime high of 24 °C: pleasant. Heat plays no part this month.

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 Imabari

Weather for your travel dates

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

Imabari 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.

Imabari has its best school-holiday weather during October half-term (score 79) and its weakest during the Christmas holidays (score 42).

  • Easter holidays

    Mar – Apr

    73

    Good

    • 18 °C by day
    • Sea 14 °C
    • 6.2 h of sun a day
    • 10 rainy days a month
  • May half-term

    May – Jun

    78

    Good

    • 25 °C by day
    • Sea 19 °C
    • 6.6 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    44

    Fair

    • 33 °C by day
    • Sea 27 °C
    • 6.7 h of sun a day
    • 10 rainy days a month

    Good for: Beach & swimming

    Keep in mind: Peak heat, Storm season

  • October half-term

    Oct

    79

    GoodBest holidays

    • 24 °C by day
    • Sea 24 °C
    • 5.6 h of sun a day
    • 9 rainy days a month

    Good for: Beach & swimming, Sightseeing & walks

    Keep in mind: Storm season

  • Christmas holidays

    Dec – Jan

    42

    Fair

    • 11 °C by day
    • Sea 15 °C
    • 4.2 h of sun a day
    • 8 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 11 h 55 min
Distance
9,480 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

Imabari 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

Compare with another place
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Imabari compared

Put Imabari side by side with another destination.

Nearby:
Compare with home:

Imabari vs Matsuyama

In October the holiday weather in Imabari and Matsuyama is about equally good (score 79 vs 78). During the day it is about as warm in Matsuyama as in Imabari. The sea in Matsuyama is 1 °C cooler.

Imabari vs Matsuyama, in October
in OctoberImabariMatsuyama
Holiday weather score7978
Daytime high24°24°
Sea24°23°
Sunshine6 h6 h
Rainy days99
Best timeApr – Jun, Oct – NovApr – May, Oct – Nov

Through the year

OctoberImabari 24°Matsuyama 24°
ImabariMatsuyama
Go to Matsuyama
Best places in the country
Ranking

Japan in October: the best places

In October, Imabari ranks 8 among the 31 nearest destinations in this country.

  1. Kure23°23°81
  2. 2Hiroshima24°23°81
  3. 3Fukuoka24°23°81
  4. 4Yamaguchi23°80
  5. 5Ube24°23°80
  6. 6Shimonoseki24°23°80
  7. 7Kumamoto24°23°80
  8. 8ImabariThis page24°24°79
All destinations: Japan
Places nearby

Near Imabari

Other destinations close by.

Places with a similar climate

Places with a climate like Imabari

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

  1. 88 % similar75KobeJapan24°23°Best time: Apr – Jun, Oct – Nov
  2. 88 % similar75WakayamaJapan24°24°Best time: Apr – Jun, Oct – Nov
  3. 87 % similar80ShimonosekiJapan24°23°Best time: Apr – May, Oct – Nov
  4. 87 % similar80UbeJapan24°23°Best time: Apr – Jun, Oct – Nov

Frequently asked questions about Imabari

When is the best time to visit Imabari?

The best time to visit Imabari 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 Imabari?

The sea temperature in Imabari ranges from 12.6 °C in February to 27.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.

Can you swim in Imabari in October?

Yes. In October the sea averages 23.9 °C – pleasant for swimming.

What is the warmest month in Imabari?

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 Imabari?

The wettest month is June with 201 mm of precipitation. The driest month is January with 53 mm.

How many hours of sunshine does Imabari get?

Imabari gets around 2,030 hours of sunshine a year. The sunniest month is August with 7.1 hours a day; in December there are 4.1 hours a day.

What time zone is Imabari in?

Imabari is on UTC+9 all year.

How long is the flight from London to Imabari?

A nonstop flight from London to Imabari takes about 11 h 55 min, for a straight-line distance of about 9,480 km. Most routes need a change of planes, which adds time.

When is typhoon season in Imabari?

Imabari 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 Imabari?

Imabari has its best school-holiday weather during October half-term (score 79) and its weakest during the Christmas holidays (score 42). Holiday ratings (0–100): Easter holidays 73, May half-term 78, summer holidays 44, October half-term 79, Christmas holidays 42.