Climate Insights for Naha
Okinawa Prefecture, Japan
Climate Overview
The climate in Naha is warm and mild. The average annual temperature is 24°C and approximately 2,000 mm of precipitation falls per year. Naha receives a notable amount of rainfall throughout the year, including during its driest month. Naha is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 17°C.The climate in Naha is warm and mild. The average annual temperature is 75°F and approximately 78.8 in of precipitation falls per year. Naha receives a notable amount of rainfall throughout the year, including during its driest month. Naha is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 63°F.
Temperature
Naha sees moderate temperature variation throughout the year, ranging from 17°C to 29°C. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 17°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.Naha sees moderate temperature variation throughout the year, ranging from 63°F to 84°F. The warmest month is August, when average highs reach 84°F and the mean temperature sits around 83°F. January is the coolest month, with minimum temperatures around 63°F and an average of 65°F. Daily temperature variation is modest, with an average difference of 3°F between highs and lows. The sharpest temperature change occurs between November and December, with a 6°F shift in average temperatures.
Precipitation
Naha is a very wet location, receiving approximately 2,000 mm of precipitation annually, which averages out to around 167 mm per month. The wettest month is June, averaging 257 mm of rainfall. May and August also tend to see above-average precipitation. The driest month is February, with just 99 mm. That's 158 mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.Naha is a very wet location, receiving approximately 78.8 in of precipitation annually, which averages out to around 6.6 in per month. The wettest month is June, averaging 10.1 in of rainfall. May and August also tend to see above-average precipitation. The driest month is February, with just 3.9 in. That's 6.2 in less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Naha is moderately windy, with an average annual wind speed of 25km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 30km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 21km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 9km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 28km/h in winter, 23km/h in spring, 22km/h in summer, 26km/h in autumn.Naha is very windy, with an average annual wind speed of 15mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 18mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in May, with average winds dropping to 13mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5mph between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 17mph in winter, 14mph in spring, 14mph in summer, 16mph in autumn.
Best Time to Visit
The best time to visit Naha is during February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 99 mm per month. By contrast, August can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to 17°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Naha is during February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 65°F with modest rainfall averaging 3.9 in per month. By contrast, August can be uncomfortably hot with highs reaching 84°F, while January is the coldest period with lows dropping to 63°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Naha based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Naha based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.