Click on a day for an hourly weather forecast
The temperatures in Okinawa during September are extremely high, between 27°C and hot as 29°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Okinawa. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Okinawa in September 2025.
If you’re planning to visit Okinawa in the near future, we highly recommend that you review the 14 day weather forecast for Okinawa before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 19° / 17° | 7 | 24 | 0 | 158 mm | Ok | Okinawa in January |
| February | 19° / 17° | 8 | 21 | 0 | 157 mm | Ok | Okinawa in February |
| March | 21° / 18° | 7 | 24 | 0 | 161 mm | Ok | Okinawa in March |
| April | 22° / 20° | 8 | 22 | 0 | 177 mm | Ok | Okinawa in April |
| May | 25° / 23° | 11 | 20 | 0 | 374 mm | Good | Okinawa in May |
| June | 27° / 26° | 14 | 16 | 0 | 452 mm | Good | Okinawa in June |
| July | 29° / 28° | 9 | 22 | 0 | 303 mm | Ok | Okinawa in July |
| August | 29° / 28° | 11 | 20 | 0 | 330 mm | Ok | Okinawa in August |
| September | 29° / 27° | 8 | 22 | 0 | 262 mm | Ok | Okinawa in September |
| October | 26° / 25° | 6 | 25 | 0 | 306 mm | Perfect | Okinawa in October |
| November | 24° / 22° | 5 | 25 | 0 | 147 mm | Perfect | Okinawa in November |
| December | 20° / 19° | 6 | 25 | 0 | 145 mm | Good | Okinawa in December |