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Weather & Climate
Tomakomai, Hokkaidō, Japan
Overview
Available climate summaries for Tomakomai. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
8.1°C
Summer Avg
17.6°C
Winter Avg
-2.1°C
Record High
27.5°C
Record Low
-14.1°C
Annual Precipitation
1225.4 mm
Avg Humidity
84%
Summer Humidity
89%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 6.2° | -3° | -14.1° | 66.6 | 85% | 50 | 75.2 |
| Feb | 7° | -3° | -13.7° | 58 | 83% | 68 | 70.1 |
| Mar | 9.8° | 0.3° | -12.5° | 64.2 | 81% | 112 | 64.4 |
| Apr | 18.1° | 4.7° | -2.9° | 74.4 | 83% | 139 | 66.7 |
| May | 20.6° | 9.6° | -0.2° | 94.2 | 85% | 158 | 59.3 |
| Jun | 26° | 14.2° | 5° | 96 | 88% | 148 | 56.1 |
| Jul | 26° | 18.2° | 10.4° | 141.7 | 90% | 138 | 50.1 |
| Aug | 27.5° | 20.4° | 12.8° | 171.7 | 88% | 131 | 85.9 |
| Sep | 26.4° | 18.1° | 9.2° | 143.4 | 83% | 113 | 97.5 |
| Oct | 20.9° | 12.5° | 2.4° | 116.3 | 79% | 87 | 67.4 |
| Nov | 17.1° | 6° | -4.5° | 105 | 81% | 52 | 70.7 |
| Dec | 12.3° | -0.2° | -10.5° | 93.9 | 84% | 41 | 70 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
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