Kosai Climate by Month
Kosai, Shizuoka, Japan
Hot summers and cool winters, with rain spread through the year.
The climate in Kosai is one of hot summers and cool winters, with rain spread through the year. Afternoon highs range from 50°F (10°C) in January to 87°F (31°C) in August, and January nights average 36°F (2°C). About 74 in (1874 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 87°F(31°C)
- Average high, August
- Coldest nights
- 36°F(2°C)
- Average low, January
- Rain per year
- 74 in(1874 mm)
- No clear rainy season
- Humidity
- 68%
- Sunniest: August
Best and worst months in Kosai
Best for weatherMay is the best time for weather in Kosai: highs near 73°F (23°C) and about 7.5 in (190 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; February is the coldest, with highs of only 51°F (11°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 May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Kosai weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 50°F(10°C) | 36°F(2°C) | 2.5 in(63 mm) | 53% | 2.8 |
| FebFebruary | 51°F(11°C) | 37°F(3°C) | 3.3 in(84 mm) | 62% | 3.5 |
| MarMarch | 58°F(14°C) | 42°F(6°C) | 5.2 in(133 mm) | 57% | 4.3 |
| AprApril | 66°F(19°C) | 51°F(10°C) | 6.7 in(170 mm) | 60% | 5.1 |
| MayMayBest | 73°F(23°C) | 59°F(15°C) | 7.5 in(190 mm) | 69% | 5.3 |
| JunJune | 78°F(25°C) | 66°F(19°C) | 9.5 in(241 mm) | 79% | 4.9 |
| JulJuly | 84°F(29°C) | 73°F(23°C) | 8.8 in(224 mm) | 80% | 5.3 |
| AugAugust | 87°F(31°C) | 75°F(24°C) | 6.2 in(157 mm) | 77% | 5.5 |
| SepSeptember | 82°F(28°C) | 70°F(21°C) | 7.6 in(192 mm) | 76% | 4.2 |
| OctOctober | 73°F(23°C) | 60°F(16°C) | 9.1 in(230 mm) | 72% | 3.3 |
| NovNovember | 64°F(18°C) | 50°F(10°C) | 4.6 in(118 mm) | 64% | 2.7 |
| DecDecember | 54°F(12°C) | 40°F(5°C) | 2.8 in(72 mm) | 63% | 2.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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