Otaru Climate by Month
Otaru, Hokkaido, Japan
Warm summers and freezing winters, with rain spread through the year.
The climate in Otaru is one of warm summers and freezing winters, with rain spread through the year. Afternoon highs range from 31°F (0°C) in January to 78°F (26°C) in August, and January nights average 21°F (-6°C). About 51 in (1299 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 78°F(26°C)
- Average high, August
- Coldest nights
- 21°F(-6°C)
- Average low, January
- Rain per year
- 51 in(1299 mm)
- No clear rainy season
- Humidity
- 71%
- Sunniest: May
Best and worst months in Otaru
Best for weatherThe most comfortable weather comes in July, with highs around 75°F (24°C) and about 4.3 in (109 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 31°F (0°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 July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Otaru weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 31°F(0°C) | 21°F(-6°C) | 5.7 in(146 mm) | 63% | 1.4 |
| FebFebruary | 33°F(0°C) | 21°F(-6°C) | 4.3 in(108 mm) | 60% | 2.3 |
| MarMarch | 39°F(4°C) | 27°F(-3°C) | 3.1 in(78 mm) | 63% | 3.4 |
| AprApril | 50°F(10°C) | 36°F(2°C) | 2.3 in(58 mm) | 63% | 4.4 |
| MayMay | 62°F(17°C) | 46°F(8°C) | 2.4 in(61 mm) | 70% | 5.0 |
| JunJune | 68°F(20°C) | 54°F(12°C) | 2.6 in(67 mm) | 77% | 4.9 |
| JulJulyBest | 75°F(24°C) | 62°F(17°C) | 4.3 in(109 mm) | 79% | 4.6 |
| AugAugust | 78°F(26°C) | 65°F(18°C) | 4.8 in(123 mm) | 80% | 4.3 |
| SepSeptember | 72°F(22°C) | 57°F(14°C) | 5.2 in(131 mm) | 78% | 3.7 |
| OctOctober | 60°F(16°C) | 45°F(7°C) | 4.5 in(114 mm) | 73% | 2.7 |
| NovNovember | 47°F(8°C) | 35°F(1°C) | 5.6 in(141 mm) | 70% | 1.5 |
| DecDecember | 35°F(2°C) | 25°F(-4°C) | 6.4 in(163 mm) | 71% | 1.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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