Climate averages 1991–2020
Qazvin weather
in May.
A warm, fairly 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 warm month in Qazvin: daytime highs average 24.0°C and nights cool to about 11.5°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 33 mm of rain on roughly 8 days, which makes May a fairly dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 04 min on an average May day.
The nearest other city in this atlas is Alvand (10 km away). In May its highs average 24.8°C, 0.8°C warmer than Qazvin, with 33 mm of rain.
Among the 128 cities listed in Iran, Qazvin ranks joint 91st of 128 for the warmest May highs and joint 96th of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Qazvin is 3.8°C cooler than that mean.
From May to June, average highs rise by 5.4°C to 29.4°C, and monthly rainfall falls from 33 mm to 7.4 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
Qazvin climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.1°C-3.7°C | -3.7°C | 47 | 8.1 | 10.010 h |
| February | 5.9°C-2.7°C | -2.7°C | 57 | 9.2 | 10.811 h |
| March | 11.9°C1.4°C | 1.4°C | 72 | 11.0 | 11.912 h |
| April | 18.4°C6.8°C | 6.8°C | 74 | 11.1 | 13.113 h |
| May, selected | 24.0°C11.5°C | 11.5°C | 33 | 8.3 | 14.114 h |
| June | 29.4°C15.2°C | 15.2°C | 7.4 | 2.0 | 14.615 h |
| July | 32.1°C17.8°C | 17.8°C | 4.4 | 1.3 | 14.414 h |
| August | 32.4°C18.3°C | 18.3°C | 3.0 | 0.7 | 13.514 h |
| September | 28.2°C15.5°C | 15.5°C | 4.3 | 1.2 | 12.412 h |
| October | 21.4°C10.6°C | 10.6°C | 30 | 5.4 | 11.311 h |
| November | 12.5°C3.7°C | 3.7°C | 55 | 8.1 | 10.310 h |
| December | 6.7°C-1.1°C | -1.1°C | 48 | 8.5 | 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
May in nearby cities
- Alvand in MayIran · 10 kmHigh 24.8°C · Low 11.1°C · 33 mm rain
- Moḩammadīyeh in MayIran · 17 kmHigh 24.2°C · Low 10.9°C · 19 mm rain
- Tākestān in MayIran · 35 kmHigh 25.8°C · Low 10.8°C · 22 mm rain
- Naz̧arābād in MayIran · 64 kmHigh 25.2°C · Low 13.1°C · 24 mm rain
- Mehestan in MayIran · 73 kmHigh 23.1°C · Low 11.8°C · 19 mm rain
- Kamālshahr in MayIran · 90 kmHigh 25.3°C · Low 12.5°C · 17 mm rain
- Moḩammad Shahr in MayIran · 100 kmHigh 26.0°C · Low 11.5°C · 15 mm rain
- Karaj in MayIran · 101 kmHigh 25.6°C · Low 11.4°C · 15 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 Qazvin) is explained once on the Qazvin year overview and on the Sources, method and limits page.
Alvand lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.