Climate averages 1991–2020
Behbahān weather
in September.
A very hot, very dry month: the 4th warmest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Behbahān: daytime highs average 40.2°C and nights cool to about 23.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 1.4 mm of rain on fewer than one day, which makes September a very dry month (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average September day.
The nearest other city in this atlas is Dogonbadan (59 km away). In September its highs average 37.6°C, 2.6°C cooler than Behbahān, with 1.4 mm of rain.
Among the 128 cities listed in Iran, Behbahān ranks 12th of 128 for the warmest September highs and joint 67th of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Behbahān is 9.1°C warmer than that mean.
From September to October, average highs fall by 6.0°C to 34.2°C, and monthly rainfall rises from 1.4 mm to 5.3 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
Behbahān climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 16.4°C6.2°C | 6.2°C | 115 | 9.0 | 10.410 h |
| February | 18.5°C7.3°C | 7.3°C | 71 | 6.9 | 11.111 h |
| March | 23.3°C10.4°C | 10.4°C | 70 | 5.9 | 12.012 h |
| April | 29.9°C15.4°C | 15.4°C | 27 | 3.6 | 12.913 h |
| May | 37.8°C20.8°C | 20.8°C | 5.9 | 0.8 | 13.714 h |
| June | 42.7°C25.2°C | 25.2°C | 0.1 | 0.0 | 14.114 h |
| July | 44.1°C28.1°C | 28.1°C | 0.2 | 0.1 | 13.914 h |
| August | 43.8°C27.8°C | 27.8°C | 1.4 | 0.6 | 13.313 h |
| September, selected | 40.2°C23.7°C | 23.7°C | 1.4 | 0.8 | 12.412 h |
| October | 34.2°C18.9°C | 18.9°C | 5.3 | 1.5 | 11.511 h |
| November | 24.5°C13.0°C | 13.0°C | 79 | 5.4 | 10.611 h |
| December | 18.6°C8.3°C | 8.3°C | 118 | 7.4 | 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
- Dogonbadan in SeptemberIran · 59 kmHigh 37.6°C · Low 21.4°C · 1.4 mm rain
- Rāmhormoz in SeptemberIran · 97 kmHigh 40.9°C · Low 25.4°C · 0.7 mm rain
- Bandar-e Māhshahr in SeptemberIran · 101 kmHigh 42.2°C · Low 26.7°C · 0.6 mm rain
- Bandar-e Emam Khomeyni in SeptemberIran · 111 kmHigh 38.2°C · Low 28.6°C · 0.3 mm rain
- Yasuj in SeptemberIran · 129 kmHigh 29.9°C · Low 13.1°C · 0.5 mm rain
- Īz̄eh in SeptemberIran · 142 kmHigh 35.8°C · Low 20.1°C · 0.4 mm rain
- Ahvaz in SeptemberIran · 169 kmHigh 42.9°C · Low 26.8°C · 0.9 mm rain
- Masjed Soleymān in SeptemberIran · 174 kmHigh 41.0°C · Low 24.6°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 Behbahān) is explained once on the Behbahān year overview and on the Sources, method and limits page.