Climate averages 1991–2020
Khorramabad weather
in September.
A hot, very dry month: the 4th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Khorramabad: daytime highs average 33.4°C and nights cool to about 17.3°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 3rd 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 Borūjerd (58 km away). In September its highs average 30.6°C, 2.8°C cooler than Khorramabad, with 2.2 mm of rain.
Among the 128 cities listed in Iran, Khorramabad ranks 27th of 128 for the warmest September highs and joint 37th of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Khorramabad is 2.4°C warmer than that mean.
From September to October, average highs fall by 7.4°C to 26.0°C, and monthly rainfall rises from under 1 mm to 24 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
Khorramabad climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.1°C-2.6°C | -2.6°C | 96 | 10.5 | 10.210 h |
| February | 9.1°C-1.1°C | -1.1°C | 90 | 10.8 | 11.011 h |
| March | 14.5°C3.2°C | 3.2°C | 107 | 11.4 | 12.012 h |
| April | 20.6°C8.4°C | 8.4°C | 79 | 9.8 | 13.013 h |
| May | 27.1°C13.4°C | 13.4°C | 22 | 4.5 | 13.914 h |
| June | 34.4°C18.3°C | 18.3°C | 0.9 | 0.3 | 14.314 h |
| July | 38.2°C21.9°C | 21.9°C | 0.3 | 0.1 | 14.114 h |
| August | 38.0°C21.5°C | 21.5°C | 0.1 | 0.0 | 13.413 h |
| September, selected | 33.4°C17.3°C | 17.3°C | 0.7 | 0.2 | 12.412 h |
| October | 26.0°C12.2°C | 12.2°C | 24 | 3.5 | 11.411 h |
| November | 16.5°C5.5°C | 5.5°C | 66 | 8.0 | 10.510 h |
| December | 10.6°C0.5°C | 0.5°C | 88 | 8.8 | 10.010 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
- Borūjerd in SeptemberIran · 58 kmHigh 30.6°C · Low 17.6°C · 2.2 mm rain
- Dorūd in SeptemberIran · 65 kmHigh 31.1°C · Low 17.9°C · 1.0 mm rain
- Kūhdasht in SeptemberIran · 69 kmHigh 32.5°C · Low 14.6°C · 1.3 mm rain
- Nahāvand in SeptemberIran · 78 kmHigh 29.6°C · Low 16.4°C · 0.9 mm rain
- Malāyer in SeptemberIran · 100 kmHigh 28.8°C · Low 14.3°C · 1.0 mm rain
- Andīmeshk in SeptemberIran · 114 kmHigh 41.2°C · Low 24.7°C · 0.9 mm rain
- Dezful in SeptemberIran · 123 kmHigh 41.7°C · Low 24.7°C · 1.1 mm rain
- Alīgūdarz in SeptemberIran · 124 kmHigh 27.1°C · Low 12.1°C · 1.0 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 Khorramabad) is explained once on the Khorramabad year overview and on the Sources, method and limits page.