Climate averages 1991–2020
Būmahen weather
in April.
A mild, moderately wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Būmahen: daytime highs average 15.7°C and nights cool to about 6.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 50 mm of rain on roughly 10 days, which makes April a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 04 min on an average April day.
The nearest other city in this atlas is Pardīs (5 km away). In April its highs average 14.7°C, 0.9°C cooler than Būmahen, with 50 mm of rain.
Among the 128 cities listed in Iran, Būmahen ranks joint 119th of 128 for the warmest April highs and joint 75th of 128 for the driest April (rainfall, lowest first). The mean April high of those 128 cities is 21.8°C; Būmahen is 6.1°C cooler than that mean.
From April to May, average highs rise by 6.5°C to 22.2°C, and monthly rainfall falls from 50 mm to 24 mm.
The annual picture
April in context
Monthly precipitation
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
Būmahen climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.8°C-6.0°C | -6.0°C | 36 | 6.7 | 10.010 h |
| February | 3.5°C-4.5°C | -4.5°C | 44 | 8.1 | 10.911 h |
| March | 8.8°C0.3°C | 0.3°C | 59 | 9.6 | 11.912 h |
| April, selected | 15.7°C6.6°C | 6.6°C | 50 | 9.7 | 13.113 h |
| May | 22.2°C12.6°C | 12.6°C | 24 | 5.1 | 14.014 h |
| June | 28.5°C18.0°C | 18.0°C | 6.7 | 1.8 | 14.515 h |
| July | 31.4°C21.5°C | 21.5°C | 5.2 | 1.3 | 14.314 h |
| August | 30.3°C20.8°C | 20.8°C | 5.0 | 1.1 | 13.514 h |
| September | 25.7°C17.1°C | 17.1°C | 5.7 | 1.3 | 12.412 h |
| October | 18.6°C11.0°C | 11.0°C | 20 | 3.9 | 11.311 h |
| November | 9.8°C2.7°C | 2.7°C | 40 | 6.8 | 10.310 h |
| December | 4.3°C-3.1°C | -3.1°C | 36 | 7.0 | 9.810 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
April in nearby cities
- Pardīs in AprilIran · 5 kmHigh 14.7°C · Low 5.2°C · 50 mm rain
- Pākdasht in AprilIran · 33 kmHigh 22.5°C · Low 9.8°C · 31 mm rain
- Tehran in AprilIran · 41 kmHigh 20.0°C · Low 8.0°C · 51 mm rain
- Tajrīsh in AprilIran · 41 kmHigh 16.4°C · Low 6.4°C · 51 mm rain
- Qarchak in AprilIran · 43 kmHigh 23.3°C · Low 9.8°C · 36 mm rain
- Varāmīn in AprilIran · 49 kmHigh 24.3°C · Low 10.4°C · 22 mm rain
- Eslamshahr in AprilIran · 61 kmHigh 21.8°C · Low 8.2°C · 42 mm rain
- Golestān in AprilIran · 66 kmHigh 22.5°C · Low 8.5°C · 42 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 Būmahen) is explained once on the Būmahen year overview and on the Sources, method and limits page.
Pardīs lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.