Climate averages 1991–2020
Semnan weather
in June.
A hot, very dry month: the 3rd warmest and the joint 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Semnan: daytime highs average 32.8°C and nights cool to about 19.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 1.2 mm of rain on fewer than one day, which makes June a very dry month (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 31 min on an average June day.
The nearest other city in this atlas is Qā’em Shahr (110 km away). In June its highs average 27.8°C, 5.1°C cooler than Semnan, with 40 mm of rain.
Among the 128 cities listed in Iran, Semnan ranks joint 59th of 128 for the warmest June highs and joint 42nd of 128 for the driest June (rainfall, lowest first). The mean June high of those 128 cities is 33.2°C; Semnan is 0.4°C cooler than that mean.
From June to July, average highs rise by 2.4°C to 35.3°C, and monthly rainfall falls from 1.2 mm to 1.0 mm.
The annual picture
June 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
Semnan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.1°C-1.0°C | -1.0°C | 12 | 3.3 | 10.010 h |
| February | 9.6°C0.4°C | 0.4°C | 14 | 3.1 | 10.911 h |
| March | 15.3°C4.7°C | 4.7°C | 18 | 3.9 | 11.912 h |
| April | 21.9°C10.4°C | 10.4°C | 13 | 2.8 | 13.113 h |
| May | 27.7°C15.2°C | 15.2°C | 4.8 | 1.3 | 14.014 h |
| June, selected | 32.8°C19.5°C | 19.5°C | 1.2 | 0.3 | 14.515 h |
| July | 35.3°C22.4°C | 22.4°C | 1.0 | 0.3 | 14.314 h |
| August | 34.3°C21.7°C | 21.7°C | 1.2 | 0.3 | 13.514 h |
| September | 29.8°C18.0°C | 18.0°C | 1.7 | 0.5 | 12.412 h |
| October | 22.8°C12.5°C | 12.5°C | 4.5 | 1.2 | 11.311 h |
| November | 13.9°C5.8°C | 5.8°C | 11 | 3.1 | 10.310 h |
| December | 8.4°C1.2°C | 1.2°C | 10 | 3.2 | 9.810 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
June in nearby cities
- Qā’em Shahr in JuneIran · 110 kmHigh 27.8°C · Low 18.7°C · 40 mm rain
- Sari in JuneIran · 114 kmHigh 28.6°C · Low 18.9°C · 45 mm rain
- Behshahr in JuneIran · 125 kmHigh 28.9°C · Low 20.8°C · 25 mm rain
- Bābol in JuneIran · 126 kmHigh 27.8°C · Low 19.7°C · 40 mm rain
- Āmol in JuneIran · 136 kmHigh 24.9°C · Low 18.7°C · 62 mm rain
- Būmahen in JuneIran · 139 kmHigh 28.5°C · Low 18.0°C · 6.7 mm rain
- Pardīs in JuneIran · 144 kmHigh 27.5°C · Low 16.9°C · 6.7 mm rain
- Pākdasht in JuneIran · 155 kmHigh 34.6°C · Low 21.1°C · 1.9 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 Semnan) is explained once on the Semnan year overview and on the Sources, method and limits page.