Alborz Province weather in September
September is one of the best months to visit Alborz Province: highs of 21°C (70°F) and about 44 mm (1.7 in) of rain on average. Nights average 9°C (48°F) and cloud cover 23% (NASA POWER, 2001–2025 averages). It is the 5th driest month of the year and the 4th warmest. Compared with August, it is cooler and wetter; October brings highs of 14°C (57°F) and 77 mm (3.0 in) of rain.
Figures are long-term averages for Karaj, the largest city in Alborz Province. See below for other places.
Is September a good time to visit Alborz Province?
best month Weather score 88/100.
Yes. September is one of the best months for weather in Alborz Province.
Does it rain a lot in Alborz Province in September?
No, it is usually dry: about 44 mm (1.7 in) falls in an average September. It is the 5th driest month of the year.
How warm is Alborz Province in September?
Days average 21°C (70°F) and nights 9°C (48°F).
Alborz Province weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | -2°C (29°F) | -11°C (12°F) | 47 mm | 52% | least pleasant |
| February | 0°C (32°F) | -9°C (16°F) | 48 mm | 53% | least pleasant |
| March | 6°C (42°F) | -4°C (25°F) | 47 mm | 56% | least pleasant |
| April | 11°C (53°F) | 1°C (33°F) | 45 mm | 57% | fair |
| May | 18°C (64°F) | 6°C (42°F) | 17 mm | 46% | best |
| June | 24°C (76°F) | 11°C (52°F) | 12 mm | 29% | best |
| July | 27°C (80°F) | 14°C (58°F) | 17 mm | 32% | best |
| August | 26°C (79°F) | 13°C (56°F) | 20 mm | 24% | best |
| September | 21°C (70°F) | 9°C (48°F) | 44 mm | 23% | best |
| October | 14°C (57°F) | 4°C (38°F) | 77 mm | 36% | fair |
| November | 5°C (41°F) | -4°C (25°F) | 80 mm | 47% | least pleasant |
| December | 0°C (33°F) | -8°C (17°F) | 54 mm | 46% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Alborz Province in September
Weather can differ a lot within Alborz Province: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Karaj | 21°C (70°F) | 9°C (48°F) | 44 mm | best |
| Naz̧arābād | 28°C (82°F) | 14°C (56°F) | 28 mm | best |
| Kamālshahr | 28°C (82°F) | 14°C (56°F) | 28 mm | best |
| Moḩammad Shahr | 28°C (82°F) | 14°C (56°F) | 28 mm | best |
| Mehestan | 28°C (82°F) | 14°C (56°F) | 28 mm | best |
| Hashtgerd | 28°C (82°F) | 14°C (56°F) | 28 mm | best |
| Chahārbāgh | 28°C (82°F) | 14°C (56°F) | 28 mm | best |
| Eshtehārd | 31°C (88°F) | 16°C (61°F) | 9 mm | best |
| Garmdarreh | 32°C (89°F) | 18°C (65°F) | 16 mm | best |
| Shahrak-e Mohandesī-ye Zerā‘ī | 21°C (70°F) | 9°C (48°F) | 44 mm | best |
| Malekābād | 28°C (82°F) | 14°C (56°F) | 28 mm | best |