Climate averages 1991–2020

Qom weather
in May.

A hot, very dry month: the 5th warmest and the 6th driest of the year.

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

Average high 31.0°C Daytime mean, May
Average low 17.7°C Night-time mean, May
Rainfall 8.8 mm 2 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Qom · average highYear overview

May is a hot month in Qom: daytime highs average 31.0°C and nights cool to about 17.7°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 8.8 mm of rain on roughly 2 days, which makes May a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 57 min on an average May day.

The nearest other city in this atlas is Shahrak-e Pardīsān (11 km away). In May its highs average 30.3°C, 0.7°C cooler than Qom, with 9.5 mm of rain.

Among the 128 cities listed in Iran, Qom ranks joint 28th of 128 for the warmest May highs and 40th of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Qom is 3.2°C warmer than that mean.

From May to June, average highs rise by 5.3°C to 36.3°C, and monthly rainfall falls from 8.8 mm to 1.0 mm.

The annual picture

May 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. -5051015202530354045 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 500

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

Every month, side by side

Qom climate table

1991–2020
Monthly climate averages for Qom, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 9.5°C-0.5°C-0.5°C214.610.110 h
February 12.9°C1.6°C1.6°C184.410.911 h
March 18.6°C6.5°C6.5°C255.011.912 h
April 24.9°C12.3°C12.3°C194.613.013 h
May, selected 31.0°C17.7°C17.7°C8.82.214.014 h
June 36.3°C22.7°C22.7°C1.00.314.414 h
July 38.5°C25.5°C25.5°C0.40.114.214 h
August 37.5°C24.2°C24.2°C0.20.013.513 h
September 32.9°C19.4°C19.4°C0.30.112.412 h
October 25.7°C13.5°C13.5°C5.71.511.311 h
November 16.4°C6.5°C6.5°C183.810.410 h
December 10.8°C1.8°C1.8°C194.49.910 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

May in nearby cities

Distance from Qom

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