Tomakomai Climate by Month
Tomakomai, Hokkaido, Japan
Warm summers and freezing winters, with rain spread through the year.
Warm summers and freezing winters, with rain spread through the year: that's Tomakomai's climate in short. August is the warmest month, with highs around 75°F (24°C); January is the coolest at 32°F (0°C), and nights dip to 15°F (-10°C). About 45 in (1136 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 79% relative humidity.
- Warmest month
- 75°F(24°C)
- Average high, August
- Coldest nights
- 15°F(-10°C)
- Average low, January
- Rain per year
- 45 in(1136 mm)
- No clear rainy season
- Humidity
- 79%
- Sunniest: May
Best and worst months in Tomakomai
Best for weatherThe most comfortable weather comes in August and September, with highs around 73°F (23°C) and about 6.4 in (162 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; February is the coldest, with highs of only 33°F (1°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in August.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Tomakomai weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 32°F(0°C) | 15°F(-10°C) | 2.0 in(50 mm) | 70% | 1.8 |
| FebFebruary | 33°F(1°C) | 16°F(-9°C) | 1.7 in(44 mm) | 89% | 2.6 |
| MarMarch | 40°F(4°C) | 25°F(-4°C) | 2.2 in(56 mm) | 80% | 3.5 |
| AprApril | 50°F(10°C) | 34°F(1°C) | 3.0 in(75 mm) | 77% | 4.4 |
| MayMay | 59°F(15°C) | 44°F(6°C) | 3.8 in(96 mm) | 78% | 4.9 |
| JunJune | 65°F(18°C) | 52°F(11°C) | 3.6 in(91 mm) | 84% | 4.7 |
| JulJuly | 71°F(22°C) | 61°F(16°C) | 6.1 in(155 mm) | 86% | 4.3 |
| AugAugustBest | 75°F(24°C) | 64°F(18°C) | 6.7 in(170 mm) | 84% | 4.0 |
| SepSeptemberBest | 71°F(22°C) | 56°F(13°C) | 6.1 in(154 mm) | 79% | 3.6 |
| OctOctober | 62°F(16°C) | 43°F(6°C) | 3.8 in(96 mm) | 75% | 2.8 |
| NovNovember | 49°F(9°C) | 32°F(0°C) | 3.0 in(76 mm) | 70% | 1.8 |
| DecDecember | 37°F(3°C) | 21°F(-6°C) | 2.9 in(73 mm) | 73% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
All 20 places like Tomakomai →- 🇯🇵AbashiriHokkaido, Japan · Pop. 36k95%matchSame winter lowsSame summer highsTomakomai vs Abashiri →
- 🇯🇵KushiroHokkaido, Japan · Pop. 168k93%matchSame humiditySimilar rainfallTomakomai vs Kushiro →
- 🇯🇵TōnoIwate, Japan · Pop. 26k86%matchSame humiditySame sunshineTomakomai vs Tōno →
- 🇯🇵MutsuAomori, Japan · Pop. 56k86%matchSame sunshineSimilar rainfallTomakomai vs Mutsu →
- 🇯🇵WakkanaiHokkaido, Japan · Pop. 34k84%matchWetter wintersTomakomai vs Wakkanai →