Climate averages 1991–2020
Bīrjand 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 Bīrjand: daytime highs average 29.7°C and nights cool to about 14.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 5.7 mm of rain on roughly 2 days, which makes May a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 50 min on an average May day.
The nearest other city in this atlas is Torbat-e Ḩeydarīyeh (268 km away). In May its highs average 27.1°C, 2.6°C cooler than Bīrjand, with 9.4 mm of rain.
Among the 128 cities listed in Iran, Bīrjand ranks joint 36th of 128 for the warmest May highs and 29th of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Bīrjand is 1.9°C warmer than that mean.
From May to June, average highs rise by 4.0°C to 33.7°C, and monthly rainfall falls from 5.7 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
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, selected | 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 | 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
May in nearby cities
- Torbat-e Ḩeydarīyeh in MayIran · 268 kmHigh 27.1°C · Low 13.4°C · 9.4 mm rain
- Kāshmar in MayIran · 273 kmHigh 29.5°C · Low 15.9°C · 6.5 mm rain
- Zābol in MayIran · 296 kmHigh 37.8°C · Low 23.1°C · 0.5 mm rain
- Herāt in MayAfghanistan · 321 kmHigh 29.5°C · Low 13.8°C · 4.5 mm rain
- Marāgheh (Razavi Khorasan), Iran in MayIran · 332 kmHigh 23.7°C · Low 11.9°C · 34 mm rain
- Kerman in MayIran · 352 kmHigh 29.3°C · Low 16.2°C · 4.5 mm rain
- Neyshābūr in MayIran · 374 kmHigh 27.0°C · Low 12.2°C · 36 mm rain
- Mashhad in MayIran · 383 kmHigh 25.9°C · Low 12.6°C · 34 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.