Osaka Climate by Month
Osaka, Japan
Hot summers and cool winters, with rain spread through the year.
Hot summers and cool winters, with rain spread through the year: that's Osaka's climate in short. Afternoon highs range from 50°F (10°C) in January to 93°F (34°C) in August, and January nights average 36°F (2°C). About 52 in (1323 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 93°F(34°C)
- Average high, August
- Coldest nights
- 36°F(2°C)
- Average low, January
- Rain per year
- 52 in(1323 mm)
- No clear rainy season
- Humidity
- 63%
- Sunniest: May
Best and worst months in Osaka
Best for weatherMay and October are the best time for weather in Osaka: highs near 76°F (25°C) and about 5.4 in (138 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 50°F (10°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 October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Osaka weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 50°F(10°C) | 36°F(2°C) | 2.2 in(56 mm) | 64% | 2.1 |
| FebFebruary | 51°F(11°C) | 36°F(2°C) | 2.3 in(59 mm) | 62% | 2.7 |
| MarMarch | 58°F(15°C) | 41°F(5°C) | 4.1 in(103 mm) | 58% | 3.6 |
| AprApril | 69°F(21°C) | 50°F(10°C) | 4.5 in(114 mm) | 57% | 4.7 |
| MayMayBest | 78°F(26°C) | 59°F(15°C) | 5.0 in(128 mm) | 59% | 5.2 |
| JunJune | 83°F(28°C) | 68°F(20°C) | 7.0 in(177 mm) | 67% | 4.7 |
| JulJuly | 90°F(32°C) | 75°F(24°C) | 5.9 in(151 mm) | 69% | 4.8 |
| AugAugust | 93°F(34°C) | 77°F(25°C) | 3.7 in(93 mm) | 63% | 5.1 |
| SepSeptember | 86°F(30°C) | 70°F(21°C) | 6.5 in(166 mm) | 64% | 3.9 |
| OctOctoberBest | 75°F(24°C) | 60°F(15°C) | 5.8 in(147 mm) | 66% | 3.2 |
| NovNovember | 65°F(18°C) | 49°F(9°C) | 2.8 in(72 mm) | 64% | 2.3 |
| DecDecember | 55°F(13°C) | 40°F(5°C) | 2.2 in(57 mm) | 63% | 1.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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