Aso Climate by Month
Aso, Kumamoto, Japan
Warm summers and cold winters, with rain spread through the year.
Warm summers and cold winters, with rain spread through the year: that's Aso's climate in short. August is the warmest month, with highs around 83°F (28°C); January is the coolest at 43°F (6°C), and nights dip to 30°F (-1°C). It gets 95 in (2405 mm) of rain a year, spread across the months.
- Warmest month
- 83°F(28°C)
- Average high, August
- Coldest nights
- 30°F(-1°C)
- Average low, January
- Rain per year
- 95 in(2405 mm)
- No clear rainy season
- Humidity
- 76%
- Sunniest: August
Best and worst months in Aso
Best for weatherThe most comfortable weather comes in October, with highs around 69°F (21°C) and about 5.2 in (131 mm) of rain a month.
Least pleasantJuly is the least pleasant month: it's the wettest, with 19 in (495 mm) of rain.
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 October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Aso weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 43°F(6°C) | 30°F(-1°C) | 2.8 in(72 mm) | 68% | 2.3 |
| FebFebruary | 46°F(8°C) | 31°F(0°C) | 4.0 in(102 mm) | 75% | 3.0 |
| MarMarch | 53°F(12°C) | 36°F(2°C) | 5.2 in(133 mm) | 70% | 3.9 |
| AprApril | 62°F(17°C) | 45°F(7°C) | 6.7 in(171 mm) | 71% | 4.6 |
| MayMay | 71°F(22°C) | 54°F(12°C) | 8.0 in(202 mm) | 73% | 5.0 |
| JunJune | 74°F(24°C) | 62°F(17°C) | 18 in(454 mm) | 81% | 4.3 |
| JulJuly | 81°F(27°C) | 69°F(21°C) | 19 in(495 mm) | 85% | 4.9 |
| AugAugust | 83°F(28°C) | 70°F(21°C) | 9.9 in(251 mm) | 81% | 5.2 |
| SepSeptember | 77°F(25°C) | 64°F(18°C) | 8.7 in(221 mm) | 79% | 4.1 |
| OctOctoberBest | 69°F(21°C) | 53°F(12°C) | 5.2 in(131 mm) | 76% | 3.5 |
| NovNovember | 59°F(15°C) | 43°F(6°C) | 3.8 in(96 mm) | 79% | 2.6 |
| DecDecember | 48°F(9°C) | 33°F(1°C) | 3.0 in(77 mm) | 70% | 2.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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