Climate averages 1991–2020
Rasht weather
in December.
A cool, wet month: the 10th 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 Rasht: daytime highs average 12.5°C and nights cool to about 4.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 136 mm of rain on roughly 12 days, which makes December a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 39 min on an average December day.
The nearest other city in this atlas is Bandar-e Anzalī (25 km away). In December its highs average 12.6°C, about as warm as Rasht, with 131 mm of rain.
Among the 128 cities listed in Iran, Rasht ranks 42nd of 128 for the warmest December highs and 126th of 128 for the driest December (rainfall, lowest first). The mean December high of those 128 cities is 10.9°C; Rasht is 1.5°C warmer than that mean.
From December to January, average highs fall by 1.9°C to 10.6°C, and monthly rainfall falls from 136 mm to 125 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
Rasht climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.6°C2.6°C | 2.6°C | 125 | 12.7 | 9.910 h |
| February | 10.7°C2.3°C | 2.3°C | 123 | 12.7 | 10.811 h |
| March | 13.7°C5.0°C | 5.0°C | 118 | 14.4 | 11.912 h |
| April | 17.6°C9.0°C | 9.0°C | 88 | 12.8 | 13.113 h |
| May | 22.2°C13.8°C | 13.8°C | 55 | 9.5 | 14.114 h |
| June | 26.0°C18.1°C | 18.1°C | 72 | 8.1 | 14.715 h |
| July | 27.9°C20.9°C | 20.9°C | 82 | 8.4 | 14.514 h |
| August | 28.1°C21.2°C | 21.2°C | 109 | 10.6 | 13.614 h |
| September | 24.6°C18.3°C | 18.3°C | 189 | 14.5 | 12.512 h |
| October | 20.8°C14.2°C | 14.2°C | 222 | 15.2 | 11.311 h |
| November | 15.8°C8.9°C | 8.9°C | 201 | 14.1 | 10.210 h |
| December, selected | 12.5°C4.8°C | 4.8°C | 136 | 12.3 | 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
- Bandar-e Anzalī in DecemberIran · 25 kmHigh 12.6°C · Low 9.6°C · 131 mm rain
- Lāhījān in DecemberIran · 38 kmHigh 13.4°C · Low 4.6°C · 124 mm rain
- Zanjan in DecemberIran · 118 kmHigh 4.9°C · Low -4.4°C · 40 mm rain
- Qazvin in DecemberIran · 118 kmHigh 6.7°C · Low -1.1°C · 48 mm rain
- Alvand in DecemberIran · 128 kmHigh 7.5°C · Low -1.7°C · 48 mm rain
- Moḩammadīyeh in DecemberIran · 128 kmHigh 7.2°C · Low -1.7°C · 42 mm rain
- Tākestān in DecemberIran · 134 kmHigh 7.8°C · Low -2.0°C · 34 mm rain
- Ardabīl in DecemberIran · 157 kmHigh 5.3°C · Low -4.7°C · 36 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 Rasht) is explained once on the Rasht year overview and on the Sources, method and limits page.