Climate averages 1991–2020

Tehran weather
in March.

A cool, moderately wet month: the 9th warmest and the wettest of the year.

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

Average high 13.3°C Daytime mean, March
Average low 1.6°C Night-time mean, March
Rainfall 62 mm 10 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Tehran · average highYear overview

March is a cool month in Tehran: daytime highs average 13.3°C and nights cool to about 1.6°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 62 mm of rain on roughly 10 days, which makes March a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.

The nearest other city in this atlas is Tajrīsh (12 km away). In March its highs average 9.5°C, 3.8°C cooler than Tehran, with 62 mm of rain.

Among the 128 cities listed in Iran, Tehran ranks 79th of 128 for the warmest March highs and joint 80th of 128 for the driest March (rainfall, lowest first). The mean March high of those 128 cities is 15.7°C; Tehran is 2.5°C cooler than that mean.

From March to April, average highs rise by 6.8°C to 20.0°C, and monthly rainfall falls from 62 mm to 51 mm.

The annual picture

March 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. -10-50510152025303540 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

Tehran climate table

1991–2020
Monthly climate averages for Tehran, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 5.3°C-5.3°C-5.3°C427.610.010 h
February 7.4°C-3.5°C-3.5°C498.510.911 h
March, selected 13.3°C1.6°C1.6°C629.511.912 h
April 20.0°C8.0°C8.0°C519.513.113 h
May 26.6°C14.0°C14.0°C225.014.014 h
June 32.9°C20.4°C20.4°C5.81.614.515 h
July 35.6°C24.5°C24.5°C4.61.214.314 h
August 34.6°C23.4°C23.4°C4.20.813.514 h
September 29.9°C18.6°C18.6°C4.70.912.412 h
October 22.6°C12.0°C12.0°C214.111.311 h
November 13.4°C3.8°C3.8°C457.110.310 h
December 7.6°C-2.2°C-2.2°C437.59.810 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

March in nearby cities

Distance from Tehran

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 Tehran) is explained once on the Tehran year overview and on the Sources, method and limits page.

Tajrīsh lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.