Climate averages 1991–2020
Sari weather
in December.
A cool, moderately wet month: the 10th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Sari: daytime highs average 13.8°C and nights cool to about 3.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 68 mm of rain on roughly 9 days, which makes December a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 43 min on an average December day.
The nearest other city in this atlas is Qā’em Shahr (20 km away). In December its highs average 13.6°C, about as warm as Sari, with 65 mm of rain.
Among the 128 cities listed in Iran, Sari ranks 32nd of 128 for the warmest December highs and joint 100th of 128 for the driest December (rainfall, lowest first). The mean December high of those 128 cities is 10.9°C; Sari is 2.8°C warmer than that mean.
From December to January, average highs fall by 1.6°C to 12.2°C, and monthly rainfall rises from 68 mm to 69 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Qā’em Shahr in DecemberIran · 20 kmHigh 13.6°C · Low 3.5°C · 65 mm rain
- Bābol in DecemberIran · 34 kmHigh 13.5°C · Low 4.8°C · 65 mm rain
- Behshahr in DecemberIran · 46 kmHigh 14.5°C · Low 5.8°C · 59 mm rain
- Āmol in DecemberIran · 64 kmHigh 12.2°C · Low 3.8°C · 133 mm rain
- Semnan in DecemberIran · 114 kmHigh 8.4°C · Low 1.2°C · 10 mm rain
- Būmahen in DecemberIran · 142 kmHigh 4.3°C · Low -3.1°C · 36 mm rain
- Pardīs in DecemberIran · 144 kmHigh 3.2°C · Low -4.7°C · 36 mm rain
- Chālūs in DecemberIran · 147 kmHigh 12.6°C · Low 9.2°C · 156 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.