Climate averages 1991–2020
Qom weather
in September.
A hot, very dry month: the 4th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Qom: daytime highs average 32.9°C and nights cool to about 19.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical September (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.
The nearest other city in this atlas is Shahrak-e Pardīsān (11 km away). In September its highs average 32.4°C, 0.6°C cooler than Qom, with almost no rain (under 1 mm).
Among the 128 cities listed in Iran, Qom ranks 29th of 128 for the warmest September highs and joint 17th of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Qom is 1.9°C warmer than that mean.
From September to October, average highs fall by 7.2°C to 25.7°C, and monthly rainfall rises from under 1 mm to 5.7 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
Qom climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.5°C-0.5°C | -0.5°C | 21 | 4.6 | 10.110 h |
| February | 12.9°C1.6°C | 1.6°C | 18 | 4.4 | 10.911 h |
| March | 18.6°C6.5°C | 6.5°C | 25 | 5.0 | 11.912 h |
| April | 24.9°C12.3°C | 12.3°C | 19 | 4.6 | 13.013 h |
| May | 31.0°C17.7°C | 17.7°C | 8.8 | 2.2 | 14.014 h |
| June | 36.3°C22.7°C | 22.7°C | 1.0 | 0.3 | 14.414 h |
| July | 38.5°C25.5°C | 25.5°C | 0.4 | 0.1 | 14.214 h |
| August | 37.5°C24.2°C | 24.2°C | 0.2 | 0.0 | 13.513 h |
| September, selected | 32.9°C19.4°C | 19.4°C | 0.3 | 0.1 | 12.412 h |
| October | 25.7°C13.5°C | 13.5°C | 5.7 | 1.5 | 11.311 h |
| November | 16.4°C6.5°C | 6.5°C | 18 | 3.8 | 10.410 h |
| December | 10.8°C1.8°C | 1.8°C | 19 | 4.4 | 9.910 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
- Shahrak-e Pardīsān in SeptemberIran · 11 kmHigh 32.4°C · Low 18.9°C · 0.2 mm rain
- Sāveh in SeptemberIran · 64 kmHigh 32.2°C · Low 17.2°C · 0.4 mm rain
- Kashan in SeptemberIran · 89 kmHigh 32.3°C · Low 20.1°C · 0.4 mm rain
- Parand in SeptemberIran · 93 kmHigh 31.7°C · Low 17.4°C · 1.5 mm rain
- Robāţ Karīm in SeptemberIran · 96 kmHigh 31.9°C · Low 17.6°C · 1.5 mm rain
- Golestān in SeptemberIran · 102 kmHigh 31.7°C · Low 17.4°C · 1.4 mm rain
- Varāmīn in SeptemberIran · 103 kmHigh 33.0°C · Low 18.5°C · 0.8 mm rain
- Eslamshahr in SeptemberIran · 107 kmHigh 31.5°C · Low 17.3°C · 1.4 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 Qom) is explained once on the Qom year overview and on the Sources, method and limits page.