Climate averages 1991–2020
Rikaze weather
in September.
A mild, moderately wet month: the 5th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Rikaze: daytime highs average 17.3°C and nights cool to about 7.3°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 79 mm of rain on roughly 17 days, which makes September a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average September day.
The nearest other city in this atlas is Thimphu (212 km away). In September its highs average 18.6°C, 1.3°C warmer than Rikaze, with 255 mm of rain.
Among the 884 cities listed in China, Rikaze ranks 872nd of 884 for the warmest September highs and joint 369th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Rikaze is 8.4°C cooler than that mean.
From September to October, average highs fall by 3.9°C to 13.4°C, and monthly rainfall falls from 79 mm to 16 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
Rikaze climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.0°C-7.7°C | -7.7°C | 1.0 | 0.3 | 10.510 h |
| February | 6.2°C-5.5°C | -5.5°C | 1.4 | 0.4 | 11.111 h |
| March | 9.8°C-2.2°C | -2.2°C | 2.8 | 0.8 | 12.012 h |
| April | 13.8°C0.5°C | 0.5°C | 11 | 3.1 | 12.913 h |
| May | 18.1°C4.8°C | 4.8°C | 26 | 6.6 | 13.614 h |
| June | 21.1°C8.9°C | 8.9°C | 79 | 15.4 | 14.014 h |
| July | 19.8°C10.1°C | 10.1°C | 157 | 23.3 | 13.814 h |
| August | 18.7°C9.5°C | 9.5°C | 156 | 23.5 | 13.213 h |
| September, selected | 17.3°C7.3°C | 7.3°C | 79 | 16.6 | 12.412 h |
| October | 13.4°C1.5°C | 1.5°C | 16 | 4.0 | 11.511 h |
| November | 8.5°C-3.4°C | -3.4°C | 2.4 | 0.8 | 10.711 h |
| December | 5.7°C-5.5°C | -5.5°C | 1.0 | 0.2 | 10.310 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
- Thimphu in SeptemberBhutan · 212 kmHigh 18.6°C · Low 12.1°C · 255 mm rain
- Gangtok in SeptemberIndia · 216 kmHigh 20.5°C · Low 15.2°C · 508 mm rain
- Dārjiling in SeptemberIndia · 254 kmHigh 19.7°C · Low 14.5°C · 416 mm rain
- Jaigaon in SeptemberIndia · 271 kmHigh 27.8°C · Low 23.6°C · 418 mm rain
- Lhoka in SeptemberChina · 280 kmHigh 18.2°C · Low 9.1°C · 84 mm rain
- Siliguri in SeptemberIndia · 286 kmHigh 29.0°C · Low 23.5°C · 411 mm rain
- Jalpāiguri in SeptemberIndia · 304 kmHigh 29.7°C · Low 24.2°C · 468 mm rain
- Dharān in SeptemberNepal · 313 kmHigh 28.0°C · Low 23.0°C · 276 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 Rikaze) is explained once on the Rikaze year overview and on the Sources, method and limits page.