Weather in Okinawa: September
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Average day temperature: | 85.4°F |
| Average night temperature: | 80.3°F | |
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Sea water temperature: | 83.8°F |
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Number of sunny days: | 7 days |
| Day length: | 11.9 - 12.7 hours | |
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Number of rainy days: | 9 days |
| Precipitation totals: | 7.3 in. | |
| more information | ||
14 days
forecast
forecast
| Okinawa |
sea water
temperature
temperature
| Okinawa |
Air temperature in September, °F
Show year:
2025
2024
2023
The highest day temperature during September of 2025 was 86°F. At the same time the lowest night temperature was 78°F. Daily and nightly averages during September were 85.8°F and 80.7°F.
Sea water temperature in Okinawa in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 85.9°F. The highest and lowest sea temperatures during the month were 86.4°F and 85.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Okinawa in September is 8.3 in.
Wind speed in September, mph
The average wind speed value in September is 10.8 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 5.3.
Best time for vacation in Okinawa
Okinawa on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Okinawa
Local time: 23:48
December 06, saturday
0000
63°F
SW
9 mph
9 mph
0300
64°F
SW
9 mph
9 mph
0600
64°F
SW
8 mph
8 mph
0900
68°F
SW
9 mph
9 mph
1200
70°F
SW
11 mph
11 mph
1500
70°F
SW
11 mph
11 mph
1800
66°F
SW
11 mph
11 mph
2100
64°F
SW
11 mph
11 mph
