Sendai weather in May
May in Sendai: nice, rainy, with very humid — one of the best months to visit.
#1 of 12 months in Sendai · #279 of 897 destinations to visit in May · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sendai in May
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Sendai climate normals — May
| Daytime high | 19°C / 67°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Rainfall | 105 mm / 4.1 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 11°C / 52°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 14.3 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 53 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sendai in May — FAQ
- Is May a good time to visit Sendai?
- May in Sendai: nice, rainy, with very humid — one of the best months to visit. It ranks #1 of 12 months for Sendai on SeasonMap's comfort score (87/100).
- What is the weather like in Sendai in May?
- In May, Sendai averages a daily high of 19.4°C and a low of 11.2°C, with about 104.7 mm of rain over roughly 11.6 rainy days.
- What is the air quality in Sendai in May?
- Sendai has a mean US Air Quality Index of about 53 in May.