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Kushiro weather & best time to visit

City break

Kushiro at a glance

Best time
Jun – Oct
Warmest month
Aug · 22°
Warmest sea
Aug · 17.6°
Sunshine a year
1,960 h
Rain a year
1,089 mm
Climate
Maritime
Time zone
UTC+9
Elevation
6 m

Climate in Kushiro

Kushiro has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 22 °C, while January is the coolest at 0 °C. With around 1,960 hours of sunshine a year, Kushiro is moderately sunny; February is the sunniest month with 6.5 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Kushiro

The best time to visit Kushiro is from June to October. The sea stays too cool for a classic beach holiday: even in August it only reaches 17.6 °C. For sightseeing, day trips and hiking, conditions are most comfortable from June to October. The wettest month is August with 140 mm of precipitation.

Kushiro through the seasons

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

Kushiro in spring

Mar – May

36

Poor

  • 4–13 °C by day
  • Sea 3 °C
  • 6.1 h of sun a day
  • 29 rainy days in all

Kushiro in summer

Jun – Aug

66

Good

  • 16–22 °C by day
  • Sea 14 °C
  • 3.9 h of sun a day
  • 32 rainy days in all

Kushiro in autumn

Sep – Nov

57

Fair

  • 9–20 °C by day
  • Sea 14 °C
  • 5.4 h of sun a day
  • 29 rainy days in all

Kushiro in winter

Dec – Feb

34

Poor

  • 0–3 °C by day
  • Sea 3 °C
  • 6.1 h of sun a day
  • 21 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Jun – Oct

15–28 °C and not too much rain

Snow

Dec – Apr

Snow on 2 or more days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: July – September

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

Your holiday weather, at a glance

Weather in October

Weather in October

64

Holiday weather in October

Good

Best time to visit: June – October

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 11°
  2. Midday, 13:00: about 15°
  3. Afternoon, 16:00: about 14°
  4. Evening, 20:00: about 10°
  5. Night, 23:00: about 8°

05:3416:42

Cold evenings: bring a warm jacket.

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

Light for photos in October

Golden hour
Morning 05:17–06:13 · evening 16:03–16:59
Blue hour
Morning 05:06–05:17 · evening 16:59–17:10

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 Kushiro compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 18° at the start of the month to 12° at the end. The sea cools from 15° to 12°. The days get 1.4 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high18°12°
Night-time low9°3°
Sea15°12°
Daylight11.8 h10.4 h

What is the weather like in Kushiro in October?

In October, Kushiro is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. The sea averages 13.8 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 114 mm in total. All in all, October is a good month for a holiday in Kushiro.

More details for October

Daylight
11 h 7 min05:34 – 16:42
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
25 km/haverage daily peakAll months
Cloud cover
51 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+9offset from UTC

How the score comes together

  • Temperatureweight 50 %73 %
  • Sunshineweight 20 %45 %
  • Few rainy daysweight 30 %60 %

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

What to pack in October

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

Compare two months in Kushiro

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

vs

September has the better holiday weather in Kushiro: score 73 against 64. In September, days are 5 °C warmer than in October. The sea is 3 °C warmer in September. The sun shines an hour less a day in September.

October vs September, Kushiro
MonthOctoberSeptember
Holiday weather score6473better
Daytime high15°20°
Night-time low6°13°
Sea13.8°17.1°
Sunshine5.7 hbetter4.8 h
Rainy days1010
Rainfall114 mmbetter139 mm
Muggy days0better3

Based on the climate averages 1996–2025.

Kushiro month by month

The typical weather for every month at a glance.

35January0° · Sea 3° · 6.0 h

In January, Kushiro is bitterly cold: daytime highs average 0 °C, and nights often drop below freezing (−10 °C). The sea averages 2.5 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Precipitation falls on about 7 days, totalling 51 mm; on about 5 of them it snows. All in all, January is not an ideal month for a holiday in Kushiro.

Kushiro in January
37February0° · Sea 1° · 6.5 h

In February, Kushiro is bitterly cold: daytime highs average 0 °C, and nights often drop below freezing (−9 °C). The sea averages 0.6 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. Precipitation falls on about 6 days, totalling 38 mm; on about 5 of them it snows. All in all, February is not an ideal month for a holiday in Kushiro.

Kushiro in February
31March4° · Sea 1° · 6.5 h

In March, Kushiro is cold: daytime highs average 4 °C, and nights often drop below freezing (−4 °C). The sea averages 0.8 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. Precipitation falls on about 9 days, totalling 75 mm; on about 5 of them it snows. All in all, March is not an ideal month for a holiday in Kushiro.

Kushiro in March
29April8° · Sea 3° · 6.1 h

In April, Kushiro is cold: daytime highs average 8 °C, and nights cool down to about 1 °C. The sea averages 2.6 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 86 mm in total. Snow falls on about 2 days. All in all, April is not an ideal month for a holiday in Kushiro.

Kushiro in April
49May13° · Sea 6° · 5.7 h

In May, Kushiro is cool: daytime highs average 13 °C, and nights cool down to about 6 °C. The sea averages 5.8 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 95 mm in total. All in all, May is a so-so month for a holiday in Kushiro.

Kushiro in May
62June16° · Sea 10° · 4.2 h

In June, Kushiro is mild: daytime highs average 16 °C, and nights cool down to about 10 °C. The sea averages 10.3 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 80 mm in total. All in all, June is a good month for a holiday in Kushiro.

Kushiro in June
69July20° · Sea 15° · 3.8 h

In July, Kushiro is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 14.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.8 hours a day. Rain is frequent, with about 10 rainy days and 117 mm in total. All in all, July is a good month for a holiday in Kushiro.

Kushiro in July
66August22° · Sea 18° · 3.8 h

In August, Kushiro is warm: daytime highs average 22 °C, and nights cool down to about 16 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. The sun is scarce, with only about 3.8 hours a day. Rain is frequent, with about 12 rainy days and 140 mm in total. All in all, August is a good month for a holiday in Kushiro.

Kushiro in August
73September20° · Sea 17° · 4.8 h

In September, Kushiro is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 17.1 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.8 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 139 mm in total. All in all, September is a good month for a holiday in Kushiro.

Kushiro in September
64October15° · Sea 14° · 5.7 h

In October, Kushiro is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. The sea averages 13.8 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 114 mm in total. All in all, October is a good month for a holiday in Kushiro.

Kushiro in October
33November9° · Sea 10° · 5.6 h

In November, Kushiro is cold: daytime highs average 9 °C, and nights cool down to about 0 °C. The sea averages 10.2 °C – swimming is only for the hardy. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 83 mm in total. All in all, November is not an ideal month for a holiday in Kushiro.

Kushiro in November
29December3° · Sea 6° · 5.7 h

In December, Kushiro is bitterly cold: daytime highs average 3 °C, and nights often drop below freezing (−7 °C). The sea averages 6.4 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Precipitation falls on about 9 days, totalling 73 mm; on about 5 of them it snows. All in all, December is not an ideal month for a holiday in Kushiro.

Kushiro in December
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 Kushiro

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

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°

ColdOctober: nights around 6°. The room should be heated.

The coolest nights are in January (−10°), the warmest in August (16°). Nights are pleasant for sleeping (15 to 20 °C) in August. Nights fall below 8 °C on average from October to May, so the room should be heated.

Temperatures through the year

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

OctoberDay 15°Night 6°Sea 14°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan350°−10°2.5°6.0 h751
FebruaryFeb370°−9°0.6°6.5 h638
MarchMar314°−4°0.8°6.5 h975
AprilApr298°1°2.6°6.1 h1086
MayMay4913°6°5.8°5.7 h1195
JuneJun6216°10°10.3°4.2 h980
JulyJul6920°14°14.8°3.8 h10117
AugustAug6622°16°17.6°3.8 h12140
SeptemberSep7320°13°17.1°4.8 h10139
OctoberOct6415°6°13.8°5.7 h10114
NovemberNov339°0°10.2°5.6 h983
DecemberDec293°−7°6.4°5.7 h973

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

42.98° N, 144.37° E · 6 m · Asia/Tokyo

Sea temperature
Swimming calendar

Sea temperature in Kushiro

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

Sea in October13.8°Ccold

8 in 10 years: 12.7 – 14.6 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 13.8°8 in 10 years 12.7° – 14.6°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Kushiro ranges from 0.6 °C in February to 17.6 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

From November 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 15.9 and 19.4 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan2.5°1.7°3.2°cold
FebruaryFeb0.6°−0.2°1.0°cold
MarchMar0.8°0.1°1.7°cold
AprilApr2.6°1.5°3.4°cold
MayMay5.8°4.4°7.4°cold
JuneJun10.3°8.8°11.3°cold
JulyJul14.8°13.1°16.4°cold
AugustAug17.6°15.9°19.4°fresh
SeptemberSep17.1°15.2°18.7°fresh
OctoberOct13.8°12.7°14.6°cold
NovemberNov10.2°9.0°11.2°cold
DecemberDec6.4°5.2°7.4°cold
Sunshine
Sunshine

Sunshine hours in Kushiro

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

Per year
1,960 hours
Sunniest month
Feb · 6.5 h a day
Least sunshine
Jul · 3.8 h a day
OctoberSunshine 5.7 hDaylight 11.1 hShare of daylight 51 %
SunshineDaylight

In October, the sun shines for about 5.7 of 11.1 hours of daylight in Kushiro, 51 % of the daylight hours.

Sunshine hours: measured at the weather station 1 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Kushiro: 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
1,089 mm on 111 days
Wettest month
Aug · 140 mm
Driest month
Feb · 38 mm
OctoberRainy days 10Rainfall 114 mm

In October, Kushiro has about 10 rainy days with 114 mm of rain in total.

UV index
Sun protection

UV index in Kushiro

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

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

The sun is strongest in June (UV 9).

Minutes until sunburn in October

Very fair skin
about 40 min
Fair skin
about 50 min
Light brown skin
about 70 min
Olive skin
about 85 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 Kushiro

How breezy and how cloudy Kushiro 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
23 km/h · moderate breeze
Windiest month
Dec · 28 km/h
Calmest month
Jul · 17 km/h
OctoberWind 25 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Kushiro typically peaks at 25 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: Sep – May.

Clouds

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

Year average
61 % · variable cloud
Clearest month
Dec · 42 %
Cloudiest month
Jul · 82 %
OctoberCloud cover 51 %Sunshine 5.7 h

In October, cloud covers on average 51 % of the sky over Kushiro: variable cloud, with about 5.7 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 Kushiro

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

Hot days a year
0 days
Hottest month
Aug · 22 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 15 °C

In October, Kushiro has about 0 hot days, with an average daytime high of 15 °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

Snow
Snow

Snow in Kushiro

When Kushiro is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
23 days
Fresh snow a year
122 cm
Snowy months
Jan – Mar

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 0 cmChance of snow 1 / 100

In October, it hardly ever snows in Kushiro.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Kushiro

Weather for your travel dates

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

Kushiro 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.

Kushiro has its best school-holiday weather during the summer holidays (score 67) and its weakest during the Easter holidays (score 30).

  • Easter holidays

    Mar – Apr

    30

    Poor

    • 7 °C by day
    • Sea 2 °C
    • 6.2 h of sun a day
    • 9 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    52

    Fair

    • 13 °C by day
    • Sea 7 °C
    • 5.4 h of sun a day
    • 10 rainy days a month
  • Summer holidays

    Jul – Aug

    67

    GoodBest holidays

    • 21 °C by day
    • Sea 17 °C
    • 3.8 h of sun a day
    • 11 rainy days a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    64

    Good

    • 15 °C by day
    • Sea 14 °C
    • 5.7 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    32

    Poor

    • 1 °C by day
    • Sea 4 °C
    • 5.9 h of sun a day
    • 8 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 11 h 20 min
Distance
8,980 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.

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.

Compare & alternatives

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Kushiro compared

Put Kushiro side by side with another destination.

Nearby:
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Kushiro vs Nemuro

In October Kushiro has the better holiday weather (score 64 vs 59). During the day it is about as warm in Nemuro as in Kushiro. The sea is about equally warm. Nemuro gets one hour less sunshine a day.

Kushiro vs Nemuro, in October
in OctoberKushiroNemuro
Holiday weather score6459
Daytime high15°15°
Sea14°14°
Sunshine6 h5 h
Rainy days1010
Best timeJun – OctFeb – Mar, Aug

Through the year

OctoberKushiro 15°Nemuro 15°
KushiroNemuro
Go to Nemuro
Best places in the country
Ranking

Japan in October: the best places

In October, Kushiro ranks 13 among the 31 nearest destinations in this country.

  1. Sendai20°70
  2. 2Fukushima20°70
  3. 3Hakodate18°19°68
  4. 4Aomori19°19°68
  5. 5Morioka18°67
  6. 6Tomakomai16°17°65
  7. 7Tsukuba22°65
  8. 8Narita22°65
  9. 13KushiroThis page15°14°64
All destinations: Japan
Places nearby

Near Kushiro

Other destinations close by.

Places with a similar climate

Places with a climate like Kushiro

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

  1. 67 % similar53HalifaxCanada14°14°Best time: Jun – Sep
  2. 64 % similar49Saint JohnCanada14°12°Best time: Jun – Sep
  3. 64 % similar65TomakomaiJapan16°17°Best time: Jun – Oct
  4. 63 % similar17LunenburgCanada15°14°Best time: Jul – Aug

Frequently asked questions about Kushiro

When is the best time to visit Kushiro?

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

How warm is the sea in Kushiro?

The sea temperature in Kushiro ranges from 0.6 °C in February to 17.6 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Kushiro in October?

Only if you don't mind cold water: in October the sea averages just 13.8 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Kushiro?

August is the warmest month, with average highs of 22 °C and nights around 16 °C. January is the coolest month at 0 °C.

When does it rain most in Kushiro?

The wettest month is August with 140 mm of precipitation. The driest month is February with 38 mm.

How many hours of sunshine does Kushiro get?

Kushiro gets around 1,960 hours of sunshine a year. The sunniest month is February with 6.5 hours a day; in July there are 3.8 hours a day.

What time zone is Kushiro in?

Kushiro is on UTC+9 all year.

How long is the flight from London to Kushiro?

A nonstop flight from London to Kushiro takes about 11 h 20 min, for a straight-line distance of about 8,980 km.

Which school holidays are best for Kushiro?

Kushiro has its best school-holiday weather during the summer holidays (score 67) and its weakest during the Easter holidays (score 30). Holiday ratings (0–100): Easter holidays 30, May half-term 52, summer holidays 67, October half-term 64, Christmas holidays 32.