Tokyo weather in September
September is a fair month to visit Tokyo: highs of 27°C (81°F) and about 211 mm (8.3 in) of rain on average. Nights average 20°C (68°F) and cloud cover 71% (NASA POWER, 2001–2025 averages). It is the 2nd wettest month of the year and the 3rd warmest. Compared with August, it is cooler and wetter; October brings highs of 22°C (71°F) and 246 mm (9.7 in) of rain.
Figures are long-term averages for Tokyo, the largest city in Tokyo. See below for other places.
Is September a good time to visit Tokyo?
fair month Weather score 51/100.
September is a fair month in Tokyo. The weather is usually best in Apr–May, Jul–Aug, Nov.
Does it rain a lot in Tokyo in September?
Yes, it is one of the rainy months: about 211 mm (8.3 in) falls in an average September. It is the 2nd wettest month of the year.
How warm is Tokyo in September?
Days average 27°C (81°F) and nights 20°C (68°F).
Tokyo weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 9°C (48°F) | 1°C (33°F) | 80 mm | 48% | least pleasant |
| February | 10°C (50°F) | 1°C (34°F) | 75 mm | 57% | least pleasant |
| March | 13°C (56°F) | 4°C (40°F) | 124 mm | 61% | least pleasant |
| April | 18°C (65°F) | 9°C (48°F) | 135 mm | 64% | best |
| May | 23°C (73°F) | 14°C (57°F) | 148 mm | 70% | best |
| June | 26°C (78°F) | 18°C (64°F) | 185 mm | 81% | fair |
| July | 29°C (84°F) | 22°C (72°F) | 153 mm | 76% | best |
| August | 31°C (87°F) | 23°C (74°F) | 134 mm | 65% | best |
| September | 27°C (81°F) | 20°C (68°F) | 211 mm | 71% | fair |
| October | 22°C (71°F) | 15°C (58°F) | 246 mm | 68% | least pleasant |
| November | 17°C (62°F) | 9°C (48°F) | 120 mm | 57% | best |
| December | 11°C (53°F) | 3°C (38°F) | 83 mm | 47% | fair |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Tokyo in September
Weather can differ a lot within Tokyo: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Tokyo | 27°C (81°F) | 20°C (68°F) | 211 mm | fair |
| Setagaya | 26°C (79°F) | 18°C (65°F) | 215 mm | fair |
| Ōta | 27°C (81°F) | 20°C (68°F) | 211 mm | fair |
| Edogawe | 27°C (81°F) | 20°C (68°F) | 211 mm | fair |
| Adachi | 28°C (82°F) | 19°C (66°F) | 198 mm | fair |
| Itabashi | 27°C (81°F) | 20°C (68°F) | 211 mm | fair |
| Hachiōji | 26°C (79°F) | 18°C (65°F) | 215 mm | fair |
| Katsushika | 27°C (81°F) | 20°C (68°F) | 211 mm | fair |
| Machida | 26°C (79°F) | 18°C (65°F) | 215 mm | fair |
| Shinjuku | 27°C (81°F) | 20°C (68°F) | 211 mm | fair |
| Nakano | 26°C (79°F) | 18°C (65°F) | 215 mm | fair |
| Kita | 28°C (82°F) | 19°C (66°F) | 198 mm | fair |