Climate averages 1991–2020
Okinawa weather
in May.
A warm, very wet month: the 6th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Okinawa: daytime highs average 24.1°C and nights cool to about 21.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 207 mm of rain on roughly 14 days, which makes May a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 25 min on an average May day.
The nearest other city in this atlas is Uruma (7 km away). In May its highs average 24.5°C, about as warm as Okinawa, with 207 mm of rain.
Among the 303 cities listed in Japan, Okinawa ranks 4th of 303 for the warmest May highs and joint 292nd of 303 for the driest May (rainfall, lowest first). The mean May high of those 303 cities is 21.3°C; Okinawa is 2.7°C warmer than that mean.
From May to June, average highs rise by 2.6°C to 26.7°C, and monthly rainfall rises from 207 mm to 218 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Okinawa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.0°C15.6°C | 15.6°C | 103 | 11.7 | 10.711 h |
| February | 18.2°C15.6°C | 15.6°C | 96 | 11.5 | 11.311 h |
| March | 19.6°C16.9°C | 16.9°C | 128 | 12.7 | 12.012 h |
| April | 21.6°C19.2°C | 19.2°C | 150 | 12.7 | 12.813 h |
| May, selected | 24.1°C21.9°C | 21.9°C | 207 | 13.8 | 13.413 h |
| June | 26.7°C24.9°C | 24.9°C | 218 | 15.8 | 13.814 h |
| July | 28.4°C26.5°C | 26.5°C | 126 | 11.3 | 13.614 h |
| August | 28.4°C26.5°C | 26.5°C | 178 | 14.8 | 13.113 h |
| September | 27.5°C25.6°C | 25.6°C | 199 | 14.2 | 12.312 h |
| October | 25.4°C23.6°C | 23.6°C | 141 | 11.6 | 11.612 h |
| November | 22.8°C20.9°C | 20.9°C | 101 | 10.5 | 10.911 h |
| December | 19.7°C17.5°C | 17.5°C | 113 | 11.2 | 10.511 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Uruma in MayJapan · 7 kmHigh 24.5°C · Low 22.5°C · 207 mm rain
- Naha in MayJapan · 18 kmHigh 24.9°C · Low 22.8°C · 207 mm rain
- Keelung in MayTaiwan · 622 kmHigh 26.7°C · Low 22.9°C · 163 mm rain
- Yilan, Taiwan in MayTaiwan · 632 kmHigh 26.4°C · Low 21.4°C · 297 mm rain
- Kanoya in MayJapan · 635 kmHigh 23.8°C · Low 16.3°C · 203 mm rain
- Neihu in MayTaiwan · 638 kmHigh 27.0°C · Low 22.4°C · 200 mm rain
- Kagoshima in MayJapan · 640 kmHigh 23.5°C · Low 16.6°C · 197 mm rain
- Taipei in MayTaiwan · 645 kmHigh 27.2°C · Low 22.0°C · 200 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Okinawa) is explained once on the Okinawa year overview and on the Sources, method and limits page.
Naha lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.