Climate averages 1991–2020
Fasā 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 Fasā: daytime highs average 32.3°C and nights cool to about 17.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 3.0 mm of rain on fewer than one day, which makes May a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 35 min on an average May day.
The nearest other city in this atlas is Jahrom (49 km away). In May its highs average 35.2°C, 2.9°C warmer than Fasā, with almost no rain (under 1 mm).
Among the 128 cities listed in Iran, Fasā ranks 25th of 128 for the warmest May highs and 13th of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Fasā is 4.5°C warmer than that mean.
From May to June, average highs rise by 4.6°C to 36.9°C, and monthly rainfall falls from 3.0 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
Fasā climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.8°C2.7°C | 2.7°C | 51 | 5.7 | 10.511 h |
| February | 15.1°C4.4°C | 4.4°C | 45 | 5.2 | 11.211 h |
| March | 19.4°C7.6°C | 7.6°C | 47 | 5.8 | 12.012 h |
| April | 25.5°C12.5°C | 12.5°C | 15 | 3.2 | 12.813 h |
| May, selected | 32.3°C17.7°C | 17.7°C | 3.0 | 0.8 | 13.614 h |
| June | 36.9°C21.7°C | 21.7°C | 0.3 | 0.1 | 14.014 h |
| July | 38.2°C24.2°C | 24.2°C | 1.3 | 0.3 | 13.814 h |
| August | 37.2°C23.0°C | 23.0°C | 1.9 | 0.5 | 13.213 h |
| September | 33.7°C19.2°C | 19.2°C | 0.3 | 0.1 | 12.412 h |
| October | 28.0°C14.2°C | 14.2°C | 1.0 | 0.3 | 11.511 h |
| November | 20.3°C8.5°C | 8.5°C | 13 | 2.2 | 10.711 h |
| December | 15.5°C4.4°C | 4.4°C | 36 | 3.5 | 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
- Jahrom in MayIran · 49 kmHigh 35.2°C · Low 21.8°C · 0.9 mm rain
- Dārāb in MayIran · 89 kmHigh 34.3°C · Low 19.4°C · 1.0 mm rain
- Shiraz in MayIran · 132 kmHigh 30.0°C · Low 16.8°C · 7.6 mm rain
- Marvdasht in MayIran · 132 kmHigh 29.0°C · Low 11.8°C · 3.4 mm rain
- Shahr-e Ṣadrā in MayIran · 147 kmHigh 26.8°C · Low 11.4°C · 4.5 mm rain
- Sirjan in MayIran · 205 kmHigh 29.1°C · Low 14.5°C · 3.3 mm rain
- Kāzerūn in MayIran · 208 kmHigh 33.7°C · Low 18.8°C · 2.4 mm rain
- Borāzjān in MayIran · 239 kmHigh 39.5°C · Low 23.9°C · 1.8 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 Fasā) is explained once on the Fasā year overview and on the Sources, method and limits page.