Osaka, Japan climate
Average temperatures, precipitation and all-time records for Osaka, Japan, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is August, averaging a high of 33°C, and its coldest is January, with an average low of 2°C.
Osaka is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the second biggest prefectural city, third-most populous city proper in Japan, following the special wards of Tokyo and Yokohama. via Wikipedia
How today compares
Latest recorded day: 2026-09-04. Each reading placed on Osaka, Japan's own ±7-day seasonal distribution.
Osaka average temperatures by month
Typical daily high and low, and average precipitation, for each month in Osaka, Japan, based on 1980–2026 records. The wettest month is June (8 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 9°C | 2°C | 3 mm |
| February | 10°C | 2°C | 3 mm |
| March | 13°C | 5°C | 3 mm |
| April | 19°C | 10°C | 5 mm |
| May | 23°C | 15°C | 5 mm |
| June | 27°C | 20°C | 8 mm |
| July | 31°C | 24°C | 8 mm |
| August | 33°C | 25°C | 5 mm |
| September | 29°C | 22°C | 5 mm |
| October | 23°C | 15°C | 5 mm |
| November | 17°C | 9°C | 3 mm |
| December | 11°C | 4°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
Thinking of visiting Osaka?
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Record extremes
- Hottest day on record: 39°C on 1994-08-08
- Coldest day on record: -5°C on 2023-01-24
Percentiles compare each day to Osaka, Japan's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →