Climate averages 1991–2020

Marīvān weather
in September.

A hot, very dry month: the 4th warmest and the 3rd driest of the year.

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

Average high 30.2°C Daytime mean, September
Average low 13.9°C Night-time mean, September
Rainfall 1.2 mm fewer than one day with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Marīvān · average highYear overview

September is a hot month in Marīvān: daytime highs average 30.2°C and nights cool to about 13.9°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 1.2 mm of rain on fewer than one day, which makes September a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.

The nearest other city in this atlas is Bāneh (60 km away). In September its highs average 28.9°C, 1.4°C cooler than Marīvān, with 2.3 mm of rain.

Among the 128 cities listed in Iran, Marīvān ranks 62nd of 128 for the warmest September highs and joint 56th of 128 for the driest September (rainfall, lowest first). The mean September high of those 128 cities is 31.0°C; Marīvān is 0.8°C cooler than that mean.

From September to October, average highs fall by 7.0°C to 23.2°C, and monthly rainfall rises from 1.2 mm to 26 mm.

The annual picture

September 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 1500

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

Every month, side by side

Marīvān climate table

1991–2020
Monthly climate averages for Marīvān, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 4.9°C-6.0°C-6.0°C11211.910.010 h
February 6.2°C-4.7°C-4.7°C12412.110.911 h
March 11.5°C0.1°C0.1°C11412.611.912 h
April 17.4°C5.1°C5.1°C8211.513.113 h
May 23.5°C10.0°C10.0°C306.014.014 h
June 30.6°C14.8°C14.8°C1.60.314.515 h
July 35.1°C18.2°C18.2°C0.30.214.314 h
August 35.2°C18.0°C18.0°C0.30.213.513 h
September, selected 30.2°C13.9°C13.9°C1.20.512.412 h
October 23.2°C9.0°C9.0°C263.411.311 h
November 13.9°C2.1°C2.1°C687.810.310 h
December 8.0°C-2.8°C-2.8°C8910.09.810 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

September in nearby cities

Distance from Marīvān

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