Okinawa weather in September
September in Okinawa: hot, soaked, with clean air — a great time to visit.
#3 of 12 months in Okinawa · #381 of 604 destinations to visit in September · comfort 75/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Okinawa climate normals — September
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 32°C / 90°F | |
| Rainfall | 181 mm / 7.1 in | ⛈ soaked |
| Rainy days | 17 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 12.3 h | |
| Wind | 29 km/h / 18 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Okinawa?
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Okinawa in September — FAQ
- Is September a good time to visit Okinawa?
- September in Okinawa: hot, soaked, with clean air — a great time to visit. It ranks #3 of 12 months for Okinawa on SeasonMap's comfort score (75/100).
- What is the weather like in Okinawa in September?
- In September, Okinawa averages a daily high of 28°C and a low of 26.1°C, with about 180.9 mm of rain over roughly 16.8 rainy days.
- What is the air quality in Okinawa in September?
- Okinawa has a mean US Air Quality Index of about 37 in September.