Climate averages 1991–2020
Sari weather
in September.
A hot, wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Sari: daytime highs average 28.2°C and nights cool to about 19.1°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 114 mm of rain on roughly 12 days, which makes September a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is Qā’em Shahr (20 km away). In September its highs average 27.4°C, 0.8°C cooler than Sari, with 98 mm of rain.
Among the 128 cities listed in Iran, Sari ranks joint 95th of 128 for the warmest September highs and 123rd of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Sari is 2.8°C cooler than that mean.
From September to October, average highs fall by 4.8°C to 23.5°C, and monthly rainfall falls from 114 mm to 102 mm.
The annual picture
September 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
Sari climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.2°C1.8°C | 1.8°C | 69 | 8.9 | 10.010 h |
| February | 12.6°C2.1°C | 2.1°C | 74 | 10.0 | 10.811 h |
| March | 15.9°C5.1°C | 5.1°C | 81 | 11.5 | 11.912 h |
| April | 20.1°C9.5°C | 9.5°C | 60 | 9.6 | 13.113 h |
| May | 24.7°C14.5°C | 14.5°C | 49 | 8.5 | 14.114 h |
| June | 28.6°C18.9°C | 18.9°C | 45 | 8.1 | 14.615 h |
| July | 30.9°C21.6°C | 21.6°C | 56 | 10.6 | 14.414 h |
| August | 31.9°C22.0°C | 22.0°C | 61 | 10.8 | 13.614 h |
| September, selected | 28.2°C19.1°C | 19.1°C | 114 | 12.1 | 12.412 h |
| October | 23.5°C13.7°C | 13.7°C | 102 | 10.0 | 11.311 h |
| November | 17.5°C8.0°C | 8.0°C | 96 | 9.9 | 10.310 h |
| December | 13.8°C3.7°C | 3.7°C | 68 | 8.5 | 9.710 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
September in nearby cities
- Qā’em Shahr in SeptemberIran · 20 kmHigh 27.4°C · Low 18.8°C · 98 mm rain
- Bābol in SeptemberIran · 34 kmHigh 27.7°C · Low 20.2°C · 98 mm rain
- Behshahr in SeptemberIran · 46 kmHigh 28.5°C · Low 20.8°C · 71 mm rain
- Āmol in SeptemberIran · 64 kmHigh 24.8°C · Low 18.8°C · 167 mm rain
- Semnan in SeptemberIran · 114 kmHigh 29.8°C · Low 18.0°C · 1.7 mm rain
- Būmahen in SeptemberIran · 142 kmHigh 25.7°C · Low 17.1°C · 5.7 mm rain
- Pardīs in SeptemberIran · 144 kmHigh 24.6°C · Low 15.6°C · 5.7 mm rain
- Chālūs in SeptemberIran · 147 kmHigh 24.2°C · Low 21.1°C · 148 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 Sari) is explained once on the Sari year overview and on the Sources, method and limits page.