Climate averages 1991–2020

Marvdasht weather
in December.

A cool, moderately wet month: the 10th warmest and the joint 9th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 13.1°C Daytime mean, December
Average low -0.3°C Night-time mean, December
Rainfall 45 mm 4 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Marvdasht · average highYear overview

December is a cool month in Marvdasht: daytime highs average 13.1°C and nights cool to about -0.3°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 45 mm of rain on roughly 4 days, which makes December a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 16 min on an average December day.

The nearest other city in this atlas is Shahr-e Ṣadrā (30 km away). In December its highs average 11.5°C, 1.7°C cooler than Marvdasht, with 58 mm of rain.

Among the 128 cities listed in Iran, Marvdasht ranks 39th of 128 for the warmest December highs and joint 79th of 128 for the driest December (rainfall, lowest first). The mean December high of those 128 cities is 10.9°C; Marvdasht is 2.2°C warmer than that mean.

From December to January, average highs fall by 2.8°C to 10.3°C, and monthly rainfall rises from 45 mm to 63 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -50510152025303540 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Marvdasht climate table

1991–2020
Monthly climate averages for Marvdasht, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 10.3°C-2.0°C-2.0°C636.210.510 h
February 13.0°C-0.3°C-0.3°C485.511.111 h
March 17.1°C2.6°C2.6°C455.612.012 h
April 22.5°C7.2°C7.2°C203.712.913 h
May 29.0°C11.8°C11.8°C3.40.713.614 h
June 34.7°C16.2°C16.2°C0.10.014.014 h
July 37.0°C19.4°C19.4°C0.20.013.914 h
August 36.1°C18.2°C18.2°C0.20.113.213 h
September 32.1°C14.2°C14.2°C00.012.412 h
October 26.0°C9.1°C9.1°C1.50.411.511 h
November 18.2°C3.7°C3.7°C212.810.711 h
December, selected 13.1°C-0.3°C-0.3°C454.210.310 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

Distance from Marvdasht

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Marvdasht) is explained once on the Marvdasht year overview and on the Sources, method and limits page.