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Japan climate by month
8-year averages · when to visit| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 48° | 52° | 59° | 66° | 73° | 79° | 88° | 90° | 82° | 72° | 63° | 54° |
| Kyoto | 46° | 48° | 57° | 66° | 73° | 81° | 88° | 91° | 84° | 72° | 63° | 52° |
| Osaka | 48° | 50° | 57° | 66° | 73° | 81° | 88° | 91° | 86° | 73° | 64° | 54° |
| Kitakyushu | 48° | 48° | 57° | 64° | 72° | 79° | 86° | 88° | 82° | 72° | 63° | 52° |
| Niigata | 43° | 43° | 52° | 59° | 68° | 75° | 84° | 86° | 81° | 68° | 59° | 48° |
| Hamamatsu | 50° | 52° | 59° | 66° | 72° | 77° | 84° | 88° | 82° | 73° | 64° | 55° |
| Kumamoto | 50° | 54° | 63° | 70° | 75° | 81° | 88° | 90° | 86° | 77° | 66° | 54° |
| Aihara | 48° | 50° | 57° | 64° | 70° | 77° | 86° | 88° | 81° | 70° | 61° | 52° |
| Okayama | 50° | 50° | 59° | 70° | 75° | 82° | 90° | 91° | 86° | 75° | 64° | 54° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 5 | 7 | 12 | 11 | 13 | 15 | 17 | 14 | 15 | 13 | 8 | 7 |
| Kyoto | 8 | 7 | 12 | 11 | 12 | 14 | 17 | 13 | 15 | 11 | 6 | 7 |
| Osaka | 6 | 7 | 11 | 10 | 12 | 14 | 17 | 14 | 15 | 11 | 7 | 7 |
| Kitakyushu | 10 | 10 | 12 | 11 | 12 | 15 | 18 | 16 | 15 | 9 | 8 | 9 |
| Niigata | 25 | 20 | 16 | 13 | 14 | 12 | 14 | 14 | 15 | 16 | 19 | 25 |
| Hamamatsu | 6 | 6 | 11 | 11 | 13 | 15 | 17 | 14 | 18 | 14 | 9 | 6 |
| Kumamoto | 7 | 8 | 12 | 12 | 14 | 16 | 18 | 18 | 13 | 10 | 8 | 7 |
| Aihara | 6 | 6 | 13 | 14 | 16 | 16 | 15 | 17 | 15 | 13 | 7 | 6 |
| Okayama | 4 | 7 | 10 | 10 | 11 | 13 | 13 | 13 | 12 | 9 | 5 | 5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 52° | 51° | 53° | 59° | 66° | 72° | 80° | 83° | 81° | 73° | 65° | 58° |
| Osaka | 49° | 47° | 50° | 60° | 67° | 74° | 85° | 87° | 85° | 75° | 65° | 55° |
| Kitakyushu | 55° | 53° | 54° | 61° | 67° | 73° | 83° | 86° | 84° | 76° | 66° | 59° |
| Niigata | 52° | 49° | 49° | 54° | 61° | 71° | 80° | 85° | 82° | 73° | 64° | 56° |
| Hamamatsu | 61° | 59° | 59° | 62° | 66° | 73° | 79° | 81° | 80° | 77° | 70° | 63° |
| Kumamoto | 52° | 48° | 52° | 59° | 66° | 74° | 83° | 85° | 84° | 78° | 68° | 61° |
| Okayama | 50° | 47° | 49° | 56° | 64° | 71° | 81° | 86° | 85° | 77° | 65° | 58° |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
Tokyo climate in September
8-year averages · when to visitBest months: June–September · September: Good
| August | September | October | |
|---|---|---|---|
| Average temperature | ▼ 82°F | 75°F | ▼ 64°F |
| Typical high | ▼ 90°F | 82°F | ▼ 72°F |
| Typical low | ▼ 77°F | 70°F | ▼ 57°F |
| Water temperature | ▼ 83°F | 81°F | ▼ 73°F |
| Precipitation | ▲ 4.9 in | 8.5 in | ▼ 7.3 in |
| Wet days | ▲ 14 d | 15 d | ▼ 13 d |
| Humidity | ▲ 72% | 77% | ▲ 79% |
| Sunshine per day | ▼ 10.5 h | 7.8 h | ▼ 6.8 h |
| Cloud cover | ▲ 22% | 37% | ▲ 39% |
| Midday UV | ▼ 10 | 9 | ▼ 6 |
| Daylight | 13:29 | 12:24 | 11:17 |
| Our take | Good | Good | Acceptable |
September temperatures day by day daily mean + smoothed trend · °F
September precipitation day by day in
September UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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Updated: 8:26 PM
Japan · 15 weather points · Climate reference: Tokyo (35.68°N, 139.65°E) · Asia/Tokyo