Weather in Okinawa in August 2025
- August is usually the hottest month of the year in Okinawa;
Average weather
Average temperature in Okinawa in August
The temperature in August is +31°C on average, with a range between a maximum of +33°C during the day and a minimum of +25°C at night.
The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +30°C to +32°C.
Is Okinawa warm or cold in August?
Okinawa is typically hot in August.
Maximum temperatures go up compared to the previous month from +31°C to +31°C. The minimum temperature also goes up from +26°C to +26°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
August is the hottest month in Okinawa, here is the comparison with other months:
Climate in Okinawa in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +31°C | +31°C | +30°C | ||||
| Min. temperature | ||||||
| +21°C | +22°C | +19°C | ||||
| Max. temperature | ||||||
| +35°C | +34°C | +34°C | ||||
| Rainfall | ||||||
| 159 mm | 231 mm | 222 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 85% | 84% | 81% | ||||
| Air pressure | ||||||
| 1007 HPa | 1006 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 4 | 3 | 3 | ||||
| Cloudy days | ||||||
| 7 | 5 | 5 | ||||
| Rainy days | ||||||
| 18 | 21 | 20 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. The temperature levels stay the same in the area of +31°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 159 mm to 231 mm. It feels drier, as humidity decreases from 85% to 84%. The average wind speed doesn’t change much during August, staying around 4 m/s. The days becoming less sunny, going from 4 sunny days in July to 3 in August.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 6 m/s getting up to 23 m/s which is very strong. Be careful with flying tree branches and use caution when opening umbrellas.
The average wind speed in Okinawa is gradually decreasing during August, going from 23 m/s to 6 m/s over the course of the month.
Rain
How was the weather last August in Okinawa?
Climate Change over Years
The climate in Okinawa in August has not changed much over the last 43 years.
The average temperature was the lowest in 1986 (+24°C) and the highest in 1998 (+26°C). The driest year was 1991 with only 1107 mm of rainfall, and the wettest year was 2022 with 3648 mm.
FAQ
Is August a good time to visit Okinawa?
Can you sunbathe in Okinawa in August?
Is Okinawa rainy in August?
Is it sunny in Okinawa in August?
Other cities in Japan
Monthly weather in Okinawa
Source of the data
For this page, we’ve looked at the typical weather in Okinawa, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.