Climate averages 1991–2020
Zanjan weather
in April.
A mild, moderately wet month: the 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Zanjan: daytime highs average 16.5°C and nights cool to about 3.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 76 mm of rain on roughly 13 days, which makes April a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 06 min on an average April day.
The nearest other city in this atlas is Mīāneh (108 km away). In April its highs average 19.9°C, 3.4°C warmer than Zanjan, with 57 mm of rain.
Among the 128 cities listed in Iran, Zanjan ranks joint 112th of 128 for the warmest April highs and 115th of 128 for the driest April (rainfall, lowest first). The mean April high of those 128 cities is 21.8°C; Zanjan is 5.3°C cooler than that mean.
From April to May, average highs rise by 5.3°C to 21.8°C, and monthly rainfall falls from 76 mm to 58 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
Zanjan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.2°C-7.2°C | -7.2°C | 43 | 9.0 | 10.010 h |
| February | 4.1°C-6.1°C | -6.1°C | 53 | 10.3 | 10.811 h |
| March | 10.2°C-1.5°C | -1.5°C | 68 | 12.9 | 11.912 h |
| April, selected | 16.5°C3.7°C | 3.7°C | 76 | 13.4 | 13.113 h |
| May | 21.8°C8.5°C | 8.5°C | 58 | 12.4 | 14.114 h |
| June | 26.6°C12.1°C | 12.1°C | 16 | 4.6 | 14.615 h |
| July | 28.5°C13.9°C | 13.9°C | 9.7 | 2.8 | 14.414 h |
| August | 29.1°C14.4°C | 14.4°C | 5.8 | 2.1 | 13.614 h |
| September | 25.6°C11.9°C | 11.9°C | 7.9 | 2.1 | 12.512 h |
| October | 19.1°C7.2°C | 7.2°C | 35 | 6.6 | 11.311 h |
| November | 10.4°C0.5°C | 0.5°C | 55 | 8.6 | 10.310 h |
| December | 4.9°C-4.4°C | -4.4°C | 40 | 7.9 | 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
- Mīāneh in AprilIran · 108 kmHigh 19.9°C · Low 6.9°C · 57 mm rain
- Rasht in AprilIran · 118 kmHigh 17.6°C · Low 9.0°C · 88 mm rain
- Bandar-e Anzalī in AprilIran · 123 kmHigh 14.7°C · Low 11.8°C · 59 mm rain
- Tākestān in AprilIran · 127 kmHigh 19.9°C · Low 6.1°C · 47 mm rain
- Qazvin in AprilIran · 142 kmHigh 18.4°C · Low 6.8°C · 74 mm rain
- Lāhījān in AprilIran · 147 kmHigh 18.8°C · Low 9.6°C · 81 mm rain
- Alvand in AprilIran · 150 kmHigh 19.0°C · Low 6.2°C · 74 mm rain
- Moḩammadīyeh in AprilIran · 159 kmHigh 18.3°C · Low 6.0°C · 55 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 Zanjan) is explained once on the Zanjan year overview and on the Sources, method and limits page.