Climate averages 1991–2020
Bīrjand weather
in September.
A hot, very dry month: the 4th warmest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Bīrjand: daytime highs average 29.9°C and nights cool to about 13.8°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 (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 24 min on an average September day.
The nearest other city in this atlas is Torbat-e Ḩeydarīyeh (268 km away). In September its highs average 28.3°C, 1.5°C cooler than Bīrjand, with almost no rain (under 1 mm).
Among the 128 cities listed in Iran, Bīrjand ranks joint 66th of 128 for the warmest September highs and joint 33rd of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Bīrjand is 1.2°C cooler than that mean.
From September to October, average highs fall by 5.2°C to 24.7°C, and monthly rainfall rises from under 1 mm to 3.0 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
Bīrjand climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.7°C-1.1°C | -1.1°C | 37 | 6.9 | 10.210 h |
| February | 12.0°C0.7°C | 0.7°C | 45 | 7.8 | 11.011 h |
| March | 17.2°C4.9°C | 4.9°C | 45 | 7.8 | 12.012 h |
| April | 23.9°C10.0°C | 10.0°C | 20 | 4.6 | 13.013 h |
| May | 29.7°C14.7°C | 14.7°C | 5.7 | 1.7 | 13.814 h |
| June | 33.7°C18.7°C | 18.7°C | 0.6 | 0.2 | 14.314 h |
| July | 34.0°C20.3°C | 20.3°C | 0.1 | 0.0 | 14.114 h |
| August | 32.5°C18.0°C | 18.0°C | 0.3 | 0.1 | 13.413 h |
| September, selected | 29.9°C13.8°C | 13.8°C | 0.6 | 0.2 | 12.412 h |
| October | 24.7°C10.2°C | 10.2°C | 3.0 | 0.7 | 11.411 h |
| November | 17.3°C5.0°C | 5.0°C | 10 | 2.8 | 10.511 h |
| December | 12.3°C1.1°C | 1.1°C | 22 | 4.6 | 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
September in nearby cities
- Torbat-e Ḩeydarīyeh in SeptemberIran · 268 kmHigh 28.3°C · Low 13.4°C · 0.3 mm rain
- Kāshmar in SeptemberIran · 273 kmHigh 30.5°C · Low 15.6°C · 0.2 mm rain
- Zābol in SeptemberIran · 296 kmHigh 36.3°C · Low 22.3°C · 0 mm rain
- Herāt in SeptemberAfghanistan · 321 kmHigh 30.0°C · Low 13.1°C · 0.4 mm rain
- Marāgheh (Razavi Khorasan), Iran in SeptemberIran · 332 kmHigh 25.5°C · Low 13.3°C · 1.2 mm rain
- Kerman in SeptemberIran · 352 kmHigh 30.0°C · Low 17.0°C · 0.3 mm rain
- Neyshābūr in SeptemberIran · 374 kmHigh 29.0°C · Low 12.5°C · 3.1 mm rain
- Mashhad in SeptemberIran · 383 kmHigh 27.9°C · Low 13.6°C · 2.1 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 Bīrjand) is explained once on the Bīrjand year overview and on the Sources, method and limits page.