Climate averages 1991–2020
Sirjan weather
in May.
A hot, very 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 hot month in Sirjan: daytime highs average 29.1°C and nights cool to about 14.5°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 3.3 mm of rain on roughly 1 day, which makes May a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 37 min on an average May day.
The nearest other city in this atlas is Rafsanjān (110 km away). In May its highs average 31.0°C, 1.9°C warmer than Sirjan, with 2.3 mm of rain.
Among the 128 cities listed in Iran, Sirjan ranks 42nd of 128 for the warmest May highs and 17th of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Sirjan is 1.3°C warmer than that mean.
From May to June, average highs rise by 4.7°C to 33.8°C, and monthly rainfall falls from 3.3 mm to under 1 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
Sirjan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.8°C-0.6°C | -0.6°C | 37 | 6.1 | 10.510 h |
| February | 13.4°C0.9°C | 0.9°C | 40 | 5.8 | 11.111 h |
| March | 17.4°C4.2°C | 4.2°C | 36 | 6.3 | 12.012 h |
| April | 23.3°C9.2°C | 9.2°C | 14 | 3.1 | 12.913 h |
| May, selected | 29.1°C14.5°C | 14.5°C | 3.3 | 1.0 | 13.614 h |
| June | 33.8°C18.6°C | 18.6°C | 0.9 | 0.1 | 14.014 h |
| July | 35.1°C20.5°C | 20.5°C | 1.1 | 0.3 | 13.814 h |
| August | 33.7°C18.7°C | 18.7°C | 1.8 | 0.7 | 13.213 h |
| September | 30.3°C15.3°C | 15.3°C | 0.1 | 0.0 | 12.412 h |
| October | 24.5°C10.4°C | 10.4°C | 1.9 | 0.3 | 11.511 h |
| November | 17.5°C4.7°C | 4.7°C | 11 | 2.2 | 10.711 h |
| December | 13.2°C1.1°C | 1.1°C | 26 | 3.6 | 10.310 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
- Rafsanjān in MayIran · 110 kmHigh 31.0°C · Low 16.1°C · 2.3 mm rain
- Dārāb in MayIran · 135 kmHigh 34.3°C · Low 19.4°C · 1.0 mm rain
- Kerman in MayIran · 163 kmHigh 29.3°C · Low 16.2°C · 4.5 mm rain
- Fasā in MayIran · 205 kmHigh 32.3°C · Low 17.7°C · 3.0 mm rain
- Jīroft in MayIran · 218 kmHigh 36.3°C · Low 21.7°C · 1.2 mm rain
- Jahrom in MayIran · 232 kmHigh 35.2°C · Low 21.8°C · 0.9 mm rain
- Bandar Abbas in MayIran · 259 kmHigh 38.6°C · Low 26.1°C · 0.9 mm rain
- Bam in MayIran · 262 kmHigh 35.1°C · Low 22.0°C · 4.4 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 Sirjan) is explained once on the Sirjan year overview and on the Sources, method and limits page.