Sendai weather in September
September is one of the best months to visit Sendai: highs of 23°C (73°F) and about 142 mm (5.6 in) of rain on average. Nights average 14°C (57°F) and cloud cover 76% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the 3rd warmest. Compared with August, it is cooler and drier; October brings highs of 16°C (61°F) and 153 mm (6.0 in) of rain.
Is September a good time to visit Sendai?
best month Weather score 61/100.
Yes. September is one of the best months for weather in Sendai.
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Does it rain a lot in Sendai in September?
Some rain is normal: about 142 mm (5.6 in) falls in an average September. It is the 5th wettest month of the year.
How warm is Sendai in September?
Days average 23°C (73°F) and nights 14°C (57°F).
Sendai weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 0°C (31°F) | -6°C (21°F) | 126 mm | 81% | least pleasant |
| February | 0°C (32°F) | -6°C (20°F) | 81 mm | 79% | least pleasant |
| March | 5°C (40°F) | -3°C (26°F) | 93 mm | 75% | least pleasant |
| April | 12°C (54°F) | 2°C (35°F) | 92 mm | 71% | fair |
| May | 18°C (65°F) | 8°C (46°F) | 94 mm | 72% | best |
| June | 22°C (72°F) | 13°C (55°F) | 116 mm | 77% | best |
| July | 26°C (78°F) | 17°C (62°F) | 204 mm | 83% | fair |
| August | 27°C (81°F) | 18°C (64°F) | 168 mm | 74% | best |
| September | 23°C (73°F) | 14°C (57°F) | 142 mm | 76% | best |
| October | 16°C (61°F) | 7°C (45°F) | 153 mm | 71% | fair |
| November | 10°C (49°F) | 2°C (35°F) | 127 mm | 72% | fair |
| December | 3°C (37°F) | -3°C (26°F) | 150 mm | 80% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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