Fukuoka weather in September
September in Fukuoka: hot, soaked, with very humid — a fair time to visit.
#10 of 12 months in Fukuoka · #517 of 604 destinations to visit in September · comfort 59/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Fukuoka climate normals — September
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 22°C / 72°F | |
| Feels like (high) | 31°C / 88°F | |
| Rainfall | 173 mm / 6.8 in | ⛈ soaked |
| Rainy days | 15 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 22°C / 71°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 12.4 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Fukuoka in September — FAQ
- Is September a good time to visit Fukuoka?
- September in Fukuoka: hot, soaked, with very humid — a fair time to visit. It ranks #10 of 12 months for Fukuoka on SeasonMap's comfort score (59/100).
- What is the weather like in Fukuoka in September?
- In September, Fukuoka averages a daily high of 27.7°C and a low of 22.1°C, with about 172.7 mm of rain over roughly 14.8 rainy days.
- What is the air quality in Fukuoka in September?
- Fukuoka has a mean US Air Quality Index of about 55 in September.