Climate averages 1991–2020
Chālūs weather
in April.
A mild, moderately wet month: the 7th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Chālūs: daytime highs average 16.6°C and nights cool to about 11.8°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 68 mm of rain on roughly 11 days, which makes April a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 06 min on an average April day.
The nearest other city in this atlas is Āmol (86 km away). In April its highs average 17.7°C, 1.2°C warmer than Chālūs, with 87 mm of rain.
Among the 128 cities listed in Iran, Chālūs ranks joint 110th of 128 for the warmest April highs and 105th of 128 for the driest April (rainfall, lowest first). The mean April high of those 128 cities is 21.8°C; Chālūs is 5.2°C cooler than that mean.
From April to May, average highs rise by 4.4°C to 20.9°C, and monthly rainfall falls from 68 mm to 48 mm.
The annual picture
April 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
Chālūs climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.6°C7.1°C | 7.1°C | 142 | 15.3 | 10.010 h |
| February | 10.4°C6.5°C | 6.5°C | 125 | 14.4 | 10.811 h |
| March | 12.8°C8.3°C | 8.3°C | 100 | 14.1 | 11.912 h |
| April, selected | 16.6°C11.8°C | 11.8°C | 68 | 11.4 | 13.113 h |
| May | 20.9°C16.7°C | 16.7°C | 48 | 10.0 | 14.114 h |
| June | 24.3°C20.8°C | 20.8°C | 49 | 8.9 | 14.615 h |
| July | 26.2°C23.0°C | 23.0°C | 59 | 10.8 | 14.414 h |
| August | 26.9°C23.7°C | 23.7°C | 60 | 11.3 | 13.614 h |
| September | 24.2°C21.1°C | 21.1°C | 148 | 14.6 | 12.412 h |
| October | 21.0°C17.6°C | 17.6°C | 205 | 15.4 | 11.311 h |
| November | 16.0°C12.7°C | 12.7°C | 218 | 15.8 | 10.310 h |
| December | 12.6°C9.2°C | 9.2°C | 156 | 14.6 | 9.710 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
April in nearby cities
- Āmol in AprilIran · 86 kmHigh 17.7°C · Low 9.4°C · 87 mm rain
- Tajrīsh in AprilIran · 95 kmHigh 16.4°C · Low 6.4°C · 51 mm rain
- Mehestan in AprilIran · 96 kmHigh 16.9°C · Low 5.7°C · 47 mm rain
- Karaj in AprilIran · 99 kmHigh 19.2°C · Low 5.9°C · 42 mm rain
- Kamālshahr in AprilIran · 101 kmHigh 18.9°C · Low 6.5°C · 44 mm rain
- Naz̧arābād in AprilIran · 107 kmHigh 18.9°C · Low 7.2°C · 58 mm rain
- Tehran in AprilIran · 107 kmHigh 20.0°C · Low 8.0°C · 51 mm rain
- Pardīs in AprilIran · 107 kmHigh 14.7°C · Low 5.2°C · 50 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 Chālūs) is explained once on the Chālūs year overview and on the Sources, method and limits page.