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Weather & Climate
Bastam, Semnan, Iran
Overview
Climate data and monthly weather averages for Bastam.
Key Metrics
Annual Avg
11.3°C
Summer Avg
21.9°C
Winter Avg
0.3°C
Record High
38.6°C
Record Low
-19.7°C
Annual Precipitation
207 mm
Avg Humidity
57%
Summer Humidity
43%
Winter Humidity
70%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17° | -0.6° | -19.5° | 20.2 | 71% | 77 | 51 |
| Feb | 19.3° | 0.9° | -19.7° | 26 | 68% | 90 | 59.3 |
| Mar | 29° | 5.7° | -15.4° | 34.1 | 62% | 135 | 57.2 |
| Apr | 31.3° | 10.7° | -11.1° | 29.4 | 59% | 160 | 44 |
| May | 35.4° | 16.3° | -2.6° | 16.4 | 53% | 202 | 40.8 |
| Jun | 37.4° | 20.7° | 1.2° | 7.2 | 44% | 223 | 43.3 |
| Jul | 38.6° | 23.1° | 8.9° | 5.6 | 43% | 220 | 38.2 |
| Aug | 38.1° | 22° | 5.4° | 3.7 | 41% | 207 | 38.1 |
| Sep | 34.9° | 18.3° | 2.2° | 9.3 | 47% | 167 | 40.8 |
| Oct | 30.7° | 12.6° | -2.7° | 14 | 56% | 129 | 53.6 |
| Nov | 24.6° | 5.2° | -13.3° | 22.5 | 66% | 86 | 50.6 |
| Dec | 18.7° | 0.6° | -12.9° | 18.6 | 72% | 69 | 48.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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