Osaka weather by month
Osaka's warmest month is August (average high 33.7°C) and coldest is January (9.7°C). Monthly temperature, rain, sunshine and flower seasons from Japan Meteorological Agency 1991–2020 normals.
| Month | High / low | Rain | In bloom |
|---|---|---|---|
| January | 10° / 3°C (49° / 37°F) | 47 mm (6 days) | — |
| February | 11° / 3°C (51° / 38°F) | 61 mm (6 days) | Plum blossoms |
| March | 14° / 6°C (58° / 43°F) | 103 mm (9 days) | Cherry blossoms |
| April | 20° / 11°C (68° / 52°F) | 102 mm (9 days) | Cherry blossoms |
| May | 25° / 16°C (77° / 61°F) | 137 mm (10 days) | — |
| June | 28° / 20°C (82° / 69°F) | 185 mm (11 days) | — |
| July | 32° / 25°C (89° / 76°F) | 174 mm (10 days) | — |
| August | 34° / 26°C (93° / 78°F) | 113 mm (7 days) | — |
| September | 30° / 22°C (85° / 71°F) | 153 mm (10 days) | — |
| October | 24° / 16°C (75° / 61°F) | 136 mm (8 days) | — |
| November | 18° / 10°C (64° / 50°F) | 73 mm (6 days) | Autumn colors |
| December | 12° / 5°C (54° / 42°F) | 56 mm (6 days) | Autumn colors |
See Osaka cherry blossom dates and autumn leaves.
Source: Japan Meteorological Agency climate normals 1991–2020 (processed by Japan Bloom Calendar). Averages, not a forecast.