AI-generatedTomakomai at a glance
- Best time
- Jun – Oct
- Warmest month
- Aug · 25°
- Warmest sea
- Aug · 20.6°
- Sunshine a year
- 1,750 h
- Rain a year
- 1,020 mm
- Climate
- Continental
- Time zone
- UTC+9
- Elevation
- 7 m
Climate in Tomakomai
Tomakomai has mild to warm summers and cold winters with occasional snow. August is the warmest month with average highs of 25 °C, while January is the coolest at 0 °C. With around 1,750 hours of sunshine a year, Tomakomai is moderately sunny; May is the sunniest month with 6.2 hours a day.
Holiday weather through the year
Best time to visit Tomakomai
The best time to visit Tomakomai is from June to October. The sea stays too cool for a classic beach holiday: even in August it only reaches 20.6 °C. For sightseeing, day trips and hiking, conditions are most comfortable from June to July and from September to October. The wettest month is August with 160 mm of precipitation.
Tomakomai through the seasons
How the weather changes over the seasons, with averages for each.
Tomakomai in spring
Mar – May
Fair
- 5–15 °C by day
- Sea 5 °C
- 5.7 h of sun a day
- 31 rainy days in all
Tomakomai in summer
Jun – Aug
Good
- 19–25 °C by day
- Sea 17 °C
- 5.1 h of sun a day
- 34 rainy days in all
Tomakomai in autumn
Sep – Nov
Fair
- 9–22 °C by day
- Sea 16 °C
- 4.6 h of sun a day
- 31 rainy days in all
Tomakomai in winter
Dec – Feb
Poor
- 0–3 °C by day
- Sea 6 °C
- 3.8 h of sun a day
- 22 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jun – Jul, Sep – Oct
15–28 °C and not too much rain
Snow
Dec – Mar
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Tomakomai for you.
Your best months: July – September
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: June – October
Where to go in OctoberSea temperature in October
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 12°
- Midday, 13:00: about 16°
- Afternoon, 16:00: about 15°
- Evening, 20:00: about 12°
- Night, 23:00: about 10°
05:4516:53
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:28–06:23 · evening 16:15–17:11
- Blue hour
- Morning 05:17–05:28 · evening 17:11–17:22
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 Tomakomai compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 19° at the start of the month to 13° at the end. The sea cools from 18° to 15°. The days get 1.4 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 19° | 13° |
| Night-time low | 12° | 5° |
| Sea | 18° | 15° |
| Daylight | 11.8 h | 10.4 h |
What is the weather like in Tomakomai in October?
In October, Tomakomai is mild: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 16.5 °C – swimming is only for the hardy. Expect around 5.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 94 mm in total. All in all, October is a good month for a holiday in Tomakomai.
More details for October
- Daylight
- 11 h 8 min05:45 – 16:53
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 53 %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 %82 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %59 %
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 Tomakomai
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Tomakomai: score 77 against 65. In June, days are 3 °C warmer than in October. The sea is 4 °C cooler in June. June has one rainy day fewer. The sun shines an hour longer a day in June.
| Month | October | June |
|---|---|---|
| Holiday weather score | 65 | 77better |
| Daytime high | 16° | 19° |
| Night-time low | 9° | 12° |
| Sea | 16.5° | 13.0° |
| Sunshine | 5.0 h | 5.7 hbetter |
| Rainy days | 10 | 9better |
| Rainfall | 94 mm | 83 mmbetter |
Based on the climate averages 1996–2025.
Tomakomai month by month
The typical weather for every month at a glance.
26January0° · Sea 6° · 3.6 h
In January, Tomakomai is bitterly cold: daytime highs average 0 °C, and nights often drop below freezing (−6 °C). The sea averages 5.9 °C – swimming is only for the hardy. The sun is scarce, with only about 3.6 hours a day. Precipitation falls on about 7 days, totalling 38 mm; on about 6 of them it snows. All in all, January is not an ideal month for a holiday in Tomakomai.
Tomakomai in January29February1° · Sea 3° · 4.3 h
In February, Tomakomai is bitterly cold: daytime highs average 1 °C, and nights often drop below freezing (−6 °C). The sea averages 3.3 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. Precipitation falls on about 6 days, totalling 35 mm; on about 4 of them it snows. All in all, February is not an ideal month for a holiday in Tomakomai.
Tomakomai in February25March5° · Sea 3° · 5.0 h
In March, Tomakomai is cold: daytime highs average 5 °C, and nights often drop below freezing (−2 °C). The sea averages 2.9 °C – swimming is only for the hardy. Expect around 5.0 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 59 mm in total. Snow falls on about 5 days. All in all, March is not an ideal month for a holiday in Tomakomai.
Tomakomai in March36April10° · Sea 5° · 5.8 h
In April, Tomakomai is cool: daytime highs average 10 °C, and nights cool down to about 3 °C. The sea averages 4.8 °C – swimming is only for the hardy. Expect around 5.8 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 73 mm in total. All in all, April is not an ideal month for a holiday in Tomakomai.
Tomakomai in April60May15° · Sea 8° · 6.2 h
In May, Tomakomai is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sea averages 8.3 °C – swimming is only for the hardy. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 93 mm in total. All in all, May is a good month for a holiday in Tomakomai.
Tomakomai in May77June19° · Sea 13° · 5.7 h
In June, Tomakomai is mild: daytime highs average 19 °C, and nights cool down to about 12 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 83 mm in total. All in all, June is a good month for a holiday in Tomakomai.
Tomakomai in June69July23° · Sea 18° · 4.8 h
In July, Tomakomai is warm: daytime highs average 23 °C, and nights cool down to about 17 °C. The sea averages 17.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.8 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 116 mm in total. All in all, July is a good month for a holiday in Tomakomai.
Tomakomai in July67August25° · Sea 21° · 4.9 h
In August, Tomakomai is warm: daytime highs average 25 °C, and nights cool down to about 19 °C. The sea averages 20.6 °C – refreshing for a swim. Expect around 4.9 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 160 mm in total. The air is often humid and muggy. All in all, August is a good month for a holiday in Tomakomai.
Tomakomai in August71September22° · Sea 20° · 5.1 h
In September, Tomakomai is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 20.0 °C – refreshing for a swim. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 137 mm in total. All in all, September is a good month for a holiday in Tomakomai.
Tomakomai in September65October16° · Sea 17° · 5.0 h
In October, Tomakomai is mild: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 16.5 °C – swimming is only for the hardy. Expect around 5.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 94 mm in total. All in all, October is a good month for a holiday in Tomakomai.
Tomakomai in October25November9° · Sea 13° · 3.8 h
In November, Tomakomai is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sea averages 12.8 °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 76 mm in total. All in all, November is not an ideal month for a holiday in Tomakomai.
Tomakomai in November21December3° · Sea 10° · 3.4 h
In December, Tomakomai is bitterly cold: daytime highs average 3 °C, and nights often drop below freezing (−3 °C). The sea averages 9.5 °C – swimming is only for the hardy. The sun is scarce, with only about 3.4 hours a day. Precipitation falls on about 9 days, totalling 57 mm; on about 5 of them it snows. All in all, December is not an ideal month for a holiday in Tomakomai.
Tomakomai in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Tomakomai
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°
- muggy month (15+ muggy days)
CoolOctober: nights around 9°. A duvet at night and a jumper for the evening.
The coolest nights are in January (−6°), the warmest in August (19°). Nights are pleasant for sleeping (15 to 20 °C) from July to September. Nights fall below 8 °C on average from November to April, so the room should be heated. It is muggy (dew point 18 °C or more) on about 33 days a year, mostly in August.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 26 | 0° | −6° | 5.9° | 3.6 h | 7 | 38 |
| FebruaryFeb | 29 | 1° | −6° | 3.3° | 4.3 h | 6 | 35 |
| MarchMar | 25 | 5° | −2° | 2.9° | 5.0 h | 9 | 59 |
| AprilApr | 36 | 10° | 3° | 4.8° | 5.8 h | 10 | 73 |
| MayMay | 60 | 15° | 8° | 8.3° | 6.2 h | 11 | 93 |
| JuneJun | 77 | 19° | 12° | 13.0° | 5.7 h | 9 | 83 |
| JulyJul | 69 | 23° | 17° | 17.5° | 4.8 h | 12 | 116 |
| AugustAug | 67 | 25° | 19° | 20.6° | 4.9 h | 13 | 160 |
| SeptemberSep | 71 | 22° | 15° | 20.0° | 5.1 h | 11 | 137 |
| OctoberOct | 65 | 16° | 9° | 16.5° | 5.0 h | 10 | 94 |
| NovemberNov | 25 | 9° | 2° | 12.8° | 3.8 h | 10 | 76 |
| DecemberDec | 21 | 3° | −3° | 9.5° | 3.4 h | 9 | 57 |
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
42.64° N, 141.60° E · 7 m · Asia/Tokyo
Sea temperature in Tomakomai
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 15.2 – 17.5 °C
Swimming season: Aug – Sep
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Tomakomai ranges from 2.9 °C in March to 20.6 °C in August. It is warm enough for a comfortable swim (20 °C and more) from August to September.
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 19.2 and 21.9 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 5.9° | 4.7° | 7.8° | cold |
| FebruaryFeb | 3.3° | 1.8° | 5.1° | cold |
| MarchMar | 2.9° | 1.6° | 4.9° | cold |
| AprilApr | 4.8° | 3.4° | 6.2° | cold |
| MayMay | 8.3° | 7.0° | 9.4° | cold |
| JuneJun | 13.0° | 11.9° | 13.9° | cold |
| JulyJul | 17.5° | 16.1° | 19.0° | fresh |
| AugustAug | 20.6° | 19.2° | 21.9° | refreshing |
| SeptemberSep | 20.0° | 18.7° | 21.0° | refreshing |
| OctoberOct | 16.5° | 15.2° | 17.5° | cold |
| NovemberNov | 12.8° | 11.9° | 13.4° | cold |
| DecemberDec | 9.5° | 8.2° | 10.5° | cold |
Sunshine hours in Tomakomai
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.0 of 11.1 hours of daylight in Tomakomai, 45 % 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 in Tomakomai: 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.
In October, Tomakomai has about 10 rainy days with 94 mm of rain in total.
UV index in Tomakomai
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · 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 65 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 and clouds in Tomakomai
How breezy and how cloudy Tomakomai 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.
In October, the wind in Tomakomai typically peaks at 21 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 – May.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 53 % of the sky over Tomakomai: variable cloud, with about 5.0 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 and humidity in Tomakomai
How often the day gets hot in Tomakomai (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Tomakomai has about 0 hot days, with an average daytime high of 16 °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 in Tomakomai
Snow is possible in Tomakomai, but no month makes it likely: 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 calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Tomakomai.
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 Tomakomai
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Tomakomai 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.
Tomakomai has its best school-holiday weather during the summer holidays (score 68) and its weakest during the Christmas holidays (score 24).
- 33
Easter holidays
Mar – Apr
Poor
- 9 °C by day
- Sea 4 °C
- 5.6 h of sun a day
- 10 rainy days a month
Keep in mind: Snow
- 63
May half-term
May – Jun
Good
- 16 °C by day
- Sea 9 °C
- 6.1 h of sun a day
- 11 rainy days a month
- 68
Summer holidays
Jul – Aug
GoodBest holidays
- 24 °C by day
- Sea 20 °C
- 4.9 h of sun a day
- 13 rainy days a month
- 65
October half-term
Oct
Good
- 16 °C by day
- Sea 17 °C
- 5.0 h of sun a day
- 10 rainy days a month
Good for: Sightseeing & walks
- 24
Christmas holidays
Dec – Jan
Poor
- 2 °C by day
- Sea 8 °C
- 3.5 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 15 min
- Distance
- 8,930 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.
Compare & alternatives
Tomakomai compared
Put Tomakomai side by side with another destination.
Tomakomai vs Sapporo
In October Tomakomai has the better holiday weather (score 65 vs 56). During the day Sapporo is 1 °C warmer than Tomakomai.
| in October | Tomakomai | Sapporo |
|---|---|---|
| Holiday weather score | 65 | 56 |
| Daytime high | 16° | 17° |
| Sea | 17° | no sea nearby |
| Sunshine | 5 h | 5 h |
| Rainy days | 10 | 14 |
| Best time | Jun – Oct | May – Sep |
Through the year
Japan in October: the best places
In October, Tomakomai ranks 6 among the 31 nearest destinations in this country.
- Sendai20°70
- 2Fukushima20°70
- 3Hakodate18°19°68
- 4Aomori19°19°68
- 5Morioka18°67
- 6TomakomaiThis page16°17°65
- 7Tsukuba22°65
- 8Narita22°65
Near Tomakomai
Other destinations close by.
Places with a climate like Tomakomai
Destinations whose weather through the year is closest to Tomakomai's – good alternatives.
Frequently asked questions about Tomakomai
When is the best time to visit Tomakomai?
The best time to visit Tomakomai 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 Tomakomai?
The sea temperature in Tomakomai ranges from 2.9 °C in March to 20.6 °C in August. It is warm enough for a comfortable swim (20 °C and more) from August to September.
Can you swim in Tomakomai in October?
Only if you don't mind cold water: in October the sea averages just 16.5 °C. Comfortable swimming is possible from August to September.
What is the warmest month in Tomakomai?
August is the warmest month, with average highs of 25 °C and nights around 19 °C. January is the coolest month at 0 °C.
When does it rain most in Tomakomai?
The wettest month is August with 160 mm of precipitation. The driest month is February with 35 mm.
How many hours of sunshine does Tomakomai get?
Tomakomai gets around 1,750 hours of sunshine a year. The sunniest month is May with 6.2 hours a day; in December there are 3.4 hours a day.
What time zone is Tomakomai in?
Tomakomai is on UTC+9 all year.
How long is the flight from London to Tomakomai?
A nonstop flight from London to Tomakomai takes about 11 h 15 min, for a straight-line distance of about 8,930 km.
Which school holidays are best for Tomakomai?
Tomakomai has its best school-holiday weather during the summer holidays (score 68) and its weakest during the Christmas holidays (score 24). Holiday ratings (0–100): Easter holidays 33, May half-term 63, summer holidays 68, October half-term 65, Christmas holidays 24.