Naha, Okinawa weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: May – October
What is the weather like in Naha, Okinawa in August?
In August, Naha, Okinawa is hot: daytime highs average 29 °C, and even at night it stays warm at around 27 °C. The sea averages 29.0 °C – almost as warm as a bath. The sun shines for around 9 hours a day. It rains often – on about 15 days, adding up to 190 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy, with gusts of around 30 km/h. All in all, August is an excellent month for a holiday in Naha, Okinawa.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 87 | 83 | 79 |
| Day | 29° | 29° | 29° |
| Night | 27° | 27° | 27° |
| Sea | 29° | 29° | 29° |
| Sun | 9 h | 9 h | 8 h |
| Rain days | 12 | 15 | 15 |
More details for August
- Daylight
- 13 h 5 min06:01 – 19:07
- UV index
- 11 · extremeclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 30 km/haverage daily peak
- Cloud cover
- 57 %on average
- Hot days
- 6 days30 °C or more
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %93 %
- Few rainy daysweight 20 %21 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Naha, Okinawa in August: quick answers
Is Naha, Okinawa hot in August?
Yes. In August, Naha, Okinawa is hot: daytime highs average 29 °C and nights stay around 27 °C. On about 6 days the thermometer climbs to 30 °C or more.
Can you swim in Naha, Okinawa in August?
Yes. In August the sea averages 29.0 °C – almost as warm as a bath.
Does it rain much in Naha, Okinawa in August?
It rains often – on about 15 days, adding up to 190 mm.
Naha, Okinawa month by month
The whole year in Naha, OkinawaAll destinations: Japan
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)