Climate averages 1991–2020

Al Ḩayy weather
in December.

A mild, fairly dry month: the 11th warmest and the 10th driest of the year. Meets the pleasant-weather rule

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

Average high 18.8°C Daytime mean, December
Average low 8.9°C Night-time mean, December
Rainfall 31 mm 5 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Al Ḩayy · average highYear overview

December is a mild month in Al Ḩayy: daytime highs average 18.8°C and nights cool to about 8.9°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 31 mm of rain on roughly 5 days, which makes December a fairly dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 05 min on an average December day.

The nearest other city in this atlas is Qal‘at Sukkar (35 km away). In December its highs average 19.0°C, about as warm as Al Ḩayy, with 24 mm of rain.

Among the 59 cities listed in Iraq, Al Ḩayy ranks 14th of 59 for the warmest December highs and joint 26th of 59 for the driest December (rainfall, lowest first). The mean December high of those 59 cities is 16.3°C; Al Ḩayy is 2.5°C warmer than that mean.

From December to January, average highs fall by 1.7°C to 17.1°C, and monthly rainfall rises from 31 mm to 32 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. 5101520253035404550 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

Al Ḩayy climate table

1991–2020
Monthly climate averages for Al Ḩayy, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 17.1°C7.1°C7.1°C324.910.310 h
February 20.1°C8.6°C8.6°C223.711.011 h
March 25.8°C13.0°C13.0°C233.612.012 h
April 32.3°C18.7°C18.7°C183.112.913 h
May 39.0°C24.9°C24.9°C7.30.913.814 h
June 43.9°C29.8°C29.8°C00.014.214 h
July 46.0°C32.2°C32.2°C00.014.014 h
August 46.1°C31.9°C31.9°C0.10.013.313 h
September 42.2°C27.8°C27.8°C0.40.212.412 h
October 35.5°C22.0°C22.0°C6.41.311.411 h
November 25.0°C14.0°C14.0°C323.510.511 h
December, selected 18.8°C8.9°C8.9°C314.810.110 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 Al Ḩayy

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