Climate averages 1991–2020
Fasā weather
in September.
A hot, very dry month: the 4th warmest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Fasā: daytime highs average 33.7°C and nights cool to about 19.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical September (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 21 min on an average September day.
The nearest other city in this atlas is Jahrom (49 km away). In September its highs average 36.4°C, 2.7°C warmer than Fasā, with almost no rain (under 1 mm).
Among the 128 cities listed in Iran, Fasā ranks 26th of 128 for the warmest September highs and joint 17th of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Fasā is 2.7°C warmer than that mean.
From September to October, average highs fall by 5.7°C to 28.0°C, and monthly rainfall rises from under 1 mm to 1.0 mm.
The annual picture
September 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 | 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, selected | 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
September in nearby cities
- Jahrom in SeptemberIran · 49 kmHigh 36.4°C · Low 22.7°C · 0.6 mm rain
- Dārāb in SeptemberIran · 89 kmHigh 35.4°C · Low 21.0°C · 0.2 mm rain
- Shiraz in SeptemberIran · 132 kmHigh 32.4°C · Low 20.0°C · 0.5 mm rain
- Marvdasht in SeptemberIran · 132 kmHigh 32.1°C · Low 14.2°C · 0 mm rain
- Shahr-e Ṣadrā in SeptemberIran · 147 kmHigh 29.5°C · Low 14.7°C · 0.1 mm rain
- Sirjan in SeptemberIran · 205 kmHigh 30.3°C · Low 15.3°C · 0.1 mm rain
- Kāzerūn in SeptemberIran · 208 kmHigh 36.0°C · Low 21.2°C · 1.2 mm rain
- Borāzjān in SeptemberIran · 239 kmHigh 40.3°C · Low 25.1°C · 0.7 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.