Climate averages 1991–2020
Shahreẕā weather
in December.
A cool, fairly dry month: the 11th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Shahreẕā: daytime highs average 10.2°C and nights cool to about -1.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 18 mm of rain on roughly 4 days, which makes December a fairly dry month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 06 min on an average December day.
The nearest other city in this atlas is Bahārestān (54 km away). In December its highs average 10.8°C, 0.7°C warmer than Shahreẕā, with 13 mm of rain.
Among the 128 cities listed in Iran, Shahreẕā ranks joint 57th of 128 for the warmest December highs and joint 17th of 128 for the driest December (rainfall, lowest first). The mean December high of those 128 cities is 10.9°C; Shahreẕā is 0.8°C cooler than that mean.
From December to January, average highs fall by 2.4°C to 7.7°C, and monthly rainfall rises from 18 mm to 25 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
Shahreẕā climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.7°C-4.4°C | -4.4°C | 25 | 4.6 | 10.310 h |
| February | 10.8°C-2.3°C | -2.3°C | 19 | 3.7 | 11.011 h |
| March | 15.6°C1.4°C | 1.4°C | 19 | 3.9 | 12.012 h |
| April | 21.2°C6.8°C | 6.8°C | 14 | 3.9 | 12.913 h |
| May | 26.9°C12.1°C | 12.1°C | 8.3 | 2.6 | 13.814 h |
| June | 32.5°C17.5°C | 17.5°C | 0.9 | 0.4 | 14.214 h |
| July | 34.6°C20.8°C | 20.8°C | 0.4 | 0.1 | 14.014 h |
| August | 33.2°C19.6°C | 19.6°C | 0.2 | 0.1 | 13.313 h |
| September | 29.4°C14.8°C | 14.8°C | 0.1 | 0.0 | 12.412 h |
| October | 22.9°C9.0°C | 9.0°C | 3.0 | 1.1 | 11.411 h |
| November | 15.0°C2.6°C | 2.6°C | 16 | 2.6 | 10.611 h |
| December, selected | 10.2°C-1.8°C | -1.8°C | 18 | 3.8 | 10.110 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
- Bahārestān in DecemberIran · 54 kmHigh 10.8°C · Low -1.9°C · 13 mm rain
- Fūlād Shahr in DecemberIran · 69 kmHigh 10.5°C · Low -2.8°C · 14 mm rain
- Isfahan in DecemberIran · 74 kmHigh 10.2°C · Low -1.5°C · 12 mm rain
- Khomeynī Shahr in DecemberIran · 81 kmHigh 10.5°C · Low -2.1°C · 14 mm rain
- Najafābād in DecemberIran · 84 kmHigh 10.4°C · Low -2.7°C · 19 mm rain
- Shāhīn Shahr in DecemberIran · 99 kmHigh 9.8°C · Low -0.6°C · 14 mm rain
- Shahr-e Kord in DecemberIran · 101 kmHigh 6.8°C · Low -5.2°C · 56 mm rain
- Yasuj in DecemberIran · 151 kmHigh 9.9°C · Low -1.4°C · 133 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 Shahreẕā) is explained once on the Shahreẕā year overview and on the Sources, method and limits page.