Climate averages 1991–2020
Uruma weather
in September.
A hot, very wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Uruma: daytime highs average 28.0°C and nights cool to about 26.2°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 188 mm of rain on roughly 13 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average September day.
The nearest other city in this atlas is Okinawa (7 km away). In September its highs average 27.5°C, 0.5°C cooler than Uruma, with 199 mm of rain.
Among the 303 cities listed in Japan, Uruma ranks joint 6th of 303 for the warmest September highs and joint 158th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Uruma is 2.3°C warmer than that mean.
From September to October, average highs fall by 2.1°C to 25.9°C, and monthly rainfall falls from 188 mm to 139 mm.
The annual picture
September 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
Uruma climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.5°C16.2°C | 16.2°C | 103 | 12.0 | 10.711 h |
| February | 18.7°C16.2°C | 16.2°C | 99 | 11.7 | 11.211 h |
| March | 20.1°C17.5°C | 17.5°C | 134 | 13.2 | 12.012 h |
| April | 22.1°C19.8°C | 19.8°C | 158 | 13.2 | 12.813 h |
| May | 24.5°C22.5°C | 22.5°C | 207 | 14.1 | 13.413 h |
| June | 27.1°C25.4°C | 25.4°C | 224 | 15.5 | 13.814 h |
| July | 28.9°C27.1°C | 27.1°C | 124 | 10.8 | 13.614 h |
| August | 29.0°C27.1°C | 27.1°C | 175 | 14.4 | 13.113 h |
| September, selected | 28.0°C26.2°C | 26.2°C | 188 | 13.4 | 12.312 h |
| October | 25.9°C24.2°C | 24.2°C | 139 | 11.8 | 11.612 h |
| November | 23.3°C21.5°C | 21.5°C | 100 | 10.7 | 10.911 h |
| December | 20.2°C18.1°C | 18.1°C | 110 | 11.3 | 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
September in nearby cities
- Okinawa in SeptemberJapan · 7 kmHigh 27.5°C · Low 25.6°C · 199 mm rain
- Naha in SeptemberJapan · 26 kmHigh 28.3°C · Low 26.4°C · 199 mm rain
- Keelung in SeptemberTaiwan · 628 kmHigh 28.3°C · Low 25.2°C · 192 mm rain
- Kanoya in SeptemberJapan · 628 kmHigh 28.1°C · Low 22.6°C · 212 mm rain
- Kagoshima in SeptemberJapan · 634 kmHigh 28.2°C · Low 22.9°C · 202 mm rain
- Yilan, Taiwan in SeptemberTaiwan · 638 kmHigh 27.8°C · Low 23.7°C · 336 mm rain
- Neihu in SeptemberTaiwan · 644 kmHigh 28.5°C · Low 24.8°C · 258 mm rain
- Sendai, Japan in SeptemberJapan · 650 kmHigh 27.9°C · Low 23.1°C · 198 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 Uruma) is explained once on the Uruma year overview and on the Sources, method and limits page.