Climate averages 1991–2020
Hamadān weather
in August.
A very hot, very dry month: the 2nd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a very hot month in Hamadān: daytime highs average 34.4°C and nights cool to about 20.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 1.4 mm of rain on fewer than one day, which makes August a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 28 min on an average August day.
The nearest other city in this atlas is Malāyer (62 km away). In August its highs average 33.6°C, 0.8°C cooler than Hamadān, with almost no rain (under 1 mm).
Among the 128 cities listed in Iran, Hamadān ranks joint 67th of 128 for the warmest August highs and joint 69th of 128 for the driest August (rainfall, lowest first). The mean August high of those 128 cities is 35.2°C; Hamadān is 0.8°C cooler than that mean.
From August to September, average highs fall by 5.0°C to 29.4°C, and monthly rainfall rises from 1.4 mm to 2.0 mm.
The annual picture
August 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
Hamadān climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.6°C-4.6°C | -4.6°C | 48 | 9.0 | 10.110 h |
| February | 5.5°C-3.3°C | -3.3°C | 55 | 9.8 | 10.911 h |
| March | 11.4°C1.1°C | 1.1°C | 77 | 12.0 | 11.912 h |
| April | 17.6°C6.3°C | 6.3°C | 69 | 13.2 | 13.013 h |
| May | 23.8°C11.9°C | 11.9°C | 39 | 9.3 | 14.014 h |
| June | 30.9°C17.5°C | 17.5°C | 4.9 | 1.5 | 14.414 h |
| July | 34.9°C20.9°C | 20.9°C | 1.6 | 0.5 | 14.214 h |
| August, selected | 34.4°C20.8°C | 20.8°C | 1.4 | 0.6 | 13.513 h |
| September | 29.4°C16.6°C | 16.6°C | 2.0 | 0.7 | 12.412 h |
| October | 21.9°C10.6°C | 10.6°C | 26 | 5.8 | 11.311 h |
| November | 12.8°C3.5°C | 3.5°C | 49 | 8.2 | 10.410 h |
| December | 7.0°C-1.3°C | -1.3°C | 48 | 7.8 | 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
August in nearby cities
- Malāyer in AugustIran · 62 kmHigh 33.6°C · Low 18.7°C · 0.6 mm rain
- Nahāvand in AugustIran · 69 kmHigh 34.4°C · Low 20.7°C · 0.5 mm rain
- Qorveh in AugustIran · 76 kmHigh 32.7°C · Low 16.5°C · 0.5 mm rain
- Borūjerd in AugustIran · 103 kmHigh 35.2°C · Low 21.9°C · 0.7 mm rain
- Arāk in AugustIran · 134 kmHigh 33.2°C · Low 19.0°C · 0.8 mm rain
- Kermanshah in AugustIran · 143 kmHigh 36.4°C · Low 21.0°C · 0.1 mm rain
- Khorramabad in AugustIran · 147 kmHigh 38.0°C · Low 21.5°C · 0.1 mm rain
- Sanandaj in AugustIran · 149 kmHigh 35.1°C · Low 18.3°C · 0.4 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 Hamadān) is explained once on the Hamadān year overview and on the Sources, method and limits page.