Climate averages 1991–2020
Dehradun weather
in September.
A warm, wet month: the 6th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Dehradun: daytime highs average 27.7°C and nights cool to about 19.7°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 178 mm of rain on roughly 18 days, which makes September a wet month (the 10th 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 Haridwar (44 km away). In September its highs average 30.0°C, 2.3°C warmer than Dehradun, with 154 mm of rain.
Among the 692 cities listed in India, Dehradun ranks joint 643rd of 692 for the warmest September highs and joint 453rd of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Dehradun is 3.0°C cooler than that mean.
From September to October, average highs fall by 1.2°C to 26.4°C, and monthly rainfall falls from 178 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
Dehradun climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.1°C4.0°C | 4.0°C | 44 | 5.0 | 10.410 h |
| February | 19.8°C6.3°C | 6.3°C | 59 | 6.3 | 11.111 h |
| March | 24.8°C10.1°C | 10.1°C | 42 | 5.9 | 12.012 h |
| April | 30.6°C15.0°C | 15.0°C | 27 | 5.4 | 12.913 h |
| May | 33.8°C19.1°C | 19.1°C | 32 | 7.5 | 13.714 h |
| June | 32.6°C22.0°C | 22.0°C | 133 | 14.2 | 14.114 h |
| July | 28.8°C22.8°C | 22.8°C | 419 | 28.4 | 13.914 h |
| August | 28.1°C22.4°C | 22.4°C | 414 | 28.3 | 13.213 h |
| September, selected | 27.7°C19.7°C | 19.7°C | 178 | 17.9 | 12.412 h |
| October | 26.4°C14.0°C | 14.0°C | 16 | 2.7 | 11.511 h |
| November | 22.7°C9.3°C | 9.3°C | 4.5 | 1.2 | 10.711 h |
| December | 18.9°C5.5°C | 5.5°C | 15 | 2.2 | 10.210 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
- Haridwar in SeptemberIndia · 44 kmHigh 30.0°C · Low 22.3°C · 154 mm rain
- Roorkee in SeptemberIndia · 53 kmHigh 30.5°C · Low 22.7°C · 135 mm rain
- Sahāranpur in SeptemberIndia · 61 kmHigh 31.1°C · Low 22.9°C · 164 mm rain
- Jagādhri in SeptemberIndia · 72 kmHigh 30.8°C · Low 22.6°C · 167 mm rain
- Yamuna Nagar in SeptemberIndia · 75 kmHigh 31.2°C · Low 22.9°C · 167 mm rain
- Deoband in SeptemberIndia · 78 kmHigh 31.0°C · Low 23.1°C · 155 mm rain
- Najībābād in SeptemberIndia · 85 kmHigh 30.4°C · Low 22.9°C · 148 mm rain
- Muzaffarnagar in SeptemberIndia · 100 kmHigh 31.2°C · Low 23.4°C · 159 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 Dehradun) is explained once on the Dehradun year overview and on the Sources, method and limits page.