Climate averages 1991–2020
Khomeynī Shahr weather
in May.
A hot, very dry month: the 5th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Khomeynī Shahr: daytime highs average 29.0°C and nights cool to about 12.8°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 11 mm of rain on roughly 3 days, which makes May a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 49 min on an average May day.
The nearest other city in this atlas is Isfahan (13 km away). In May its highs average 28.8°C, about as warm as Khomeynī Shahr, with 7.1 mm of rain.
Among the 128 cities listed in Iran, Khomeynī Shahr ranks joint 43rd of 128 for the warmest May highs and joint 46th of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Khomeynī Shahr is 1.1°C warmer than that mean.
From May to June, average highs rise by 5.6°C to 34.6°C, and monthly rainfall falls from 11 mm to 1.4 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
Khomeynī Shahr climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.5°C-4.4°C | -4.4°C | 17 | 3.5 | 10.310 h |
| February | 12.3°C-2.3°C | -2.3°C | 14 | 3.2 | 11.011 h |
| March | 17.4°C1.7°C | 1.7°C | 18 | 4.2 | 12.012 h |
| April | 23.3°C7.6°C | 7.6°C | 14 | 4.3 | 13.013 h |
| May, selected | 29.0°C12.8°C | 12.8°C | 11 | 3.1 | 13.814 h |
| June | 34.6°C18.3°C | 18.3°C | 1.4 | 0.3 | 14.314 h |
| July | 37.0°C21.8°C | 21.8°C | 0.4 | 0.1 | 14.114 h |
| August | 35.6°C20.4°C | 20.4°C | 0.1 | 0.0 | 13.413 h |
| September | 31.5°C15.3°C | 15.3°C | 0.5 | 0.1 | 12.412 h |
| October | 24.6°C9.2°C | 9.2°C | 4.9 | 1.4 | 11.411 h |
| November | 15.9°C2.6°C | 2.6°C | 17 | 3.2 | 10.511 h |
| December | 10.5°C-2.1°C | -2.1°C | 14 | 3.3 | 10.010 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
- Isfahan in MayIran · 13 kmHigh 28.8°C · Low 13.5°C · 7.1 mm rain
- Najafābād in MayIran · 17 kmHigh 28.7°C · Low 12.2°C · 14 mm rain
- Shāhīn Shahr in MayIran · 19 kmHigh 28.1°C · Low 12.8°C · 11 mm rain
- Fūlād Shahr in MayIran · 26 kmHigh 28.4°C · Low 11.8°C · 8.6 mm rain
- Bahārestān in MayIran · 31 kmHigh 29.2°C · Low 13.2°C · 7.6 mm rain
- Shahr-e Kord in MayIran · 75 kmHigh 23.1°C · Low 8.3°C · 13 mm rain
- Shahreẕā in MayIran · 81 kmHigh 26.9°C · Low 12.1°C · 8.3 mm rain
- Kashan in MayIran · 145 kmHigh 29.8°C · Low 16.7°C · 13 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 Khomeynī Shahr) is explained once on the Khomeynī Shahr year overview and on the Sources, method and limits page.
Shāhīn Shahr lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.