Climate averages 1991–2020
Behbahān weather
in May.
A very hot, very dry month: the 5th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in Behbahān: daytime highs average 37.8°C and nights cool to about 20.8°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 5.9 mm of rain on fewer than one day, which makes May a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 41 min on an average May day.
The nearest other city in this atlas is Dogonbadan (59 km away). In May its highs average 35.0°C, 2.8°C cooler than Behbahān, with 4.7 mm of rain.
Among the 128 cities listed in Iran, Behbahān ranks joint 12th of 128 for the warmest May highs and 30th of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Behbahān is 9.9°C warmer than that mean.
From May to June, average highs rise by 4.9°C to 42.7°C, and monthly rainfall falls from 5.9 mm to under 1 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Dogonbadan in MayIran · 59 kmHigh 35.0°C · Low 18.5°C · 4.7 mm rain
- Rāmhormoz in MayIran · 97 kmHigh 38.3°C · Low 22.8°C · 3.2 mm rain
- Bandar-e Māhshahr in MayIran · 101 kmHigh 40.1°C · Low 25.0°C · 4.0 mm rain
- Bandar-e Emam Khomeyni in MayIran · 111 kmHigh 36.5°C · Low 26.4°C · 3.2 mm rain
- Yasuj in MayIran · 129 kmHigh 25.3°C · Low 10.6°C · 17 mm rain
- Īz̄eh in MayIran · 142 kmHigh 31.1°C · Low 16.5°C · 8.4 mm rain
- Ahvaz in MayIran · 169 kmHigh 40.2°C · Low 24.7°C · 5.3 mm rain
- Masjed Soleymān in MayIran · 174 kmHigh 37.5°C · Low 21.2°C · 6.7 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.