Climate averages 1991–2020
Dharān weather
in September.
A hot, very wet month: the 6th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Dharān: daytime highs average 28.0°C and nights cool to about 23.0°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 276 mm of rain on roughly 25 days, which makes September a very wet month (the 9th 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 Inaruwa (27 km away). In September its highs average 29.4°C, 1.4°C warmer than Dharān, with 277 mm of rain.
Among the 16 cities listed in Nepal, Dharān ranks 13th of 16 for the warmest September highs and 10th of 16 for the driest September (rainfall, lowest first). The mean September high of those 16 cities is 28.9°C; Dharān is 0.8°C cooler than that mean.
From September to October, average highs fall by 1.0°C to 27.1°C, and monthly rainfall falls from 276 mm to 73 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
Dharān climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.9°C9.6°C | 9.6°C | 9.5 | 1.9 | 10.711 h |
| February | 22.4°C11.7°C | 11.7°C | 13 | 2.5 | 11.211 h |
| March | 27.5°C14.8°C | 14.8°C | 15 | 3.3 | 12.012 h |
| April | 30.4°C18.5°C | 18.5°C | 44 | 8.5 | 12.813 h |
| May | 29.9°C21.8°C | 21.8°C | 127 | 18.4 | 13.413 h |
| June | 29.1°C23.8°C | 23.8°C | 319 | 26.6 | 13.814 h |
| July | 28.4°C24.2°C | 24.2°C | 480 | 29.8 | 13.714 h |
| August | 28.6°C24.1°C | 24.1°C | 371 | 29.7 | 13.113 h |
| September, selected | 28.0°C23.0°C | 23.0°C | 276 | 24.5 | 12.312 h |
| October | 27.1°C19.1°C | 19.1°C | 73 | 8.1 | 11.512 h |
| November | 24.4°C14.6°C | 14.6°C | 7.4 | 1.1 | 10.911 h |
| December | 21.4°C11.0°C | 11.0°C | 4.6 | 1.0 | 10.510 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
- Inaruwa in SeptemberNepal · 27 kmHigh 29.4°C · Low 24.1°C · 277 mm rain
- Biratnagar in SeptemberNepal · 40 kmHigh 30.0°C · Low 24.4°C · 277 mm rain
- Triyuga in SeptemberNepal · 58 kmHigh 29.4°C · Low 24.1°C · 243 mm rain
- Arāria in SeptemberIndia · 78 kmHigh 30.5°C · Low 24.6°C · 358 mm rain
- Lahān in SeptemberNepal · 80 kmHigh 29.5°C · Low 24.0°C · 239 mm rain
- Dārjiling in SeptemberIndia · 101 kmHigh 19.7°C · Low 14.5°C · 416 mm rain
- Kishanganj in SeptemberIndia · 104 kmHigh 30.4°C · Low 24.7°C · 309 mm rain
- Siliguri in SeptemberIndia · 115 kmHigh 29.0°C · Low 23.5°C · 411 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 Dharān) is explained once on the Dharān year overview and on the Sources, method and limits page.