Okinawa Weather in December
What's the weather like in Okinawa (Okinawa) in December 2025?
The climate in Okinawa during December can be summarized as mild and damp.
December is in the winter in Okinawa and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 15°C (58°F) is normal.
| Daytime temperature | 20.5°C 68.9°F |
|---|---|
| Nightly temperature | 14.5°C 58.1°F |
| Average temperature | 17.5°C 63.5°F |
| Daily sunshine | 3.7 hrs |
| Avg rainfall | 113 mm 4.4 ins |
| Rainy days | 21 days |
| Sea temperature | 23.9°C 75°F |
| Humidity | 70% |
| Windspeed | 13.7kph 9 mph |
On average December is the driest month of the year in Okinawa with around 113mm 4.4 inches of rain making it a damp time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.7 hours of sunshine per day.
December temperatures in Okinawa
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Okinawa in December 2025.
Other monthly averages
Best places to visit in December
Okinawa weather stats
| Hottest month: | July | 31.1°C 88°F |
|---|---|---|
| Driest month: | December | 113mm 4.4ins |
| Sunniest month: | July | 8.7hrs |
| Coldest month: | January | 18.5°C 65.3°F |
| Wettest month: | June | 279mm 11ins |
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