Climate averages 1991–2020
Semnan weather
in March.
A mild, fairly dry month: the 8th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a mild month in Semnan: daytime highs average 15.3°C and nights cool to about 4.7°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 18 mm of rain on roughly 4 days, which makes March a fairly dry month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average March day.
The nearest other city in this atlas is Qā’em Shahr (110 km away). In March its highs average 15.8°C, 0.5°C warmer than Semnan, with 72 mm of rain.
Among the 128 cities listed in Iran, Semnan ranks 60th of 128 for the warmest March highs and joint 6th of 128 for the driest March (rainfall, lowest first). The mean March high of those 128 cities is 15.7°C; Semnan is 0.4°C cooler than that mean.
From March to April, average highs rise by 6.6°C to 21.9°C, and monthly rainfall falls from 18 mm to 13 mm.
The annual picture
March 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, selected | 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 | 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
March in nearby cities
- Qā’em Shahr in MarchIran · 110 kmHigh 15.8°C · Low 5.0°C · 72 mm rain
- Sari in MarchIran · 114 kmHigh 15.9°C · Low 5.1°C · 81 mm rain
- Behshahr in MarchIran · 125 kmHigh 16.4°C · Low 7.2°C · 71 mm rain
- Bābol in MarchIran · 126 kmHigh 15.4°C · Low 5.9°C · 72 mm rain
- Āmol in MarchIran · 136 kmHigh 13.8°C · Low 4.9°C · 118 mm rain
- Būmahen in MarchIran · 139 kmHigh 8.8°C · Low 0.3°C · 59 mm rain
- Pardīs in MarchIran · 144 kmHigh 7.9°C · Low -1.1°C · 59 mm rain
- Pākdasht in MarchIran · 155 kmHigh 16.1°C · Low 3.9°C · 43 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.