Climate averages 1991–2020

Behbahān weather
in December.

A mild, wet month: the 10th warmest and the wettest of the year. Meets the pleasant-weather rule

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

Average high 18.6°C Daytime mean, December
Average low 8.3°C Night-time mean, December
Rainfall 118 mm 7 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Behbahān · average highYear overview

December is a mild month in Behbahān: daytime highs average 18.6°C and nights cool to about 8.3°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 118 mm of rain on roughly 7 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 13 min on an average December day.

The nearest other city in this atlas is Dogonbadan (59 km away). In December its highs average 17.3°C, 1.3°C cooler than Behbahān, with 115 mm of rain.

Among the 128 cities listed in Iran, Behbahān ranks joint 12th of 128 for the warmest December highs and 118th of 128 for the driest December (rainfall, lowest first). The mean December high of those 128 cities is 10.9°C; Behbahān is 7.7°C warmer than that mean.

From December to January, average highs fall by 2.3°C to 16.4°C, and monthly rainfall falls from 118 mm to 115 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. 05101520253035404550 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

Behbahān climate table

1991–2020
Monthly climate averages for Behbahān, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 16.4°C6.2°C6.2°C1159.010.410 h
February 18.5°C7.3°C7.3°C716.911.111 h
March 23.3°C10.4°C10.4°C705.912.012 h
April 29.9°C15.4°C15.4°C273.612.913 h
May 37.8°C20.8°C20.8°C5.90.813.714 h
June 42.7°C25.2°C25.2°C0.10.014.114 h
July 44.1°C28.1°C28.1°C0.20.113.914 h
August 43.8°C27.8°C27.8°C1.40.613.313 h
September 40.2°C23.7°C23.7°C1.40.812.412 h
October 34.2°C18.9°C18.9°C5.31.511.511 h
November 24.5°C13.0°C13.0°C795.410.611 h
December, selected 18.6°C8.3°C8.3°C1187.410.210 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 Behbahān

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