Climate averages 1991–2020

Ar Rifā‘ weather
in September.

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

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

Average high 33.7°C Daytime mean, September
Average low 29.4°C Night-time mean, September
Rainfall <1 mm Almost no rain
Daylight 12 h Sunrise to sunset, per day
Every month in Ar Rifā‘ · average highYear overview

September is a hot month in Ar Rifā‘: daytime highs average 33.7°C and nights cool to about 29.4°C. By daytime temperature it is the 3rd warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical September (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average September day.

The nearest other city in this atlas is Madīnat Ḩamad (5 km away). In September its highs average 34.1°C, about as warm as Ar Rifā‘, with almost no rain (under 1 mm).

Among the 4 cities listed in Bahrain, Ar Rifā‘ ranks 4th of 4 for the warmest September highs and joint 1st of 4 for the driest September (rainfall, lowest first). The mean September high of those 4 cities is 34.2°C; Ar Rifā‘ is 0.5°C cooler than that mean.

From September to October, average highs fall by 3.1°C to 30.6°C, and monthly rainfall stays under 1 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. 10152025303540 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

Ar Rifā‘ climate table

1991–2020
Monthly climate averages for Ar Rifā‘, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 18.4°C15.1°C15.1°C153.010.711 h
February 19.1°C15.7°C15.7°C9.61.911.311 h
March 21.7°C18.1°C18.1°C101.912.012 h
April 25.7°C22.1°C22.1°C3.20.812.813 h
May 30.2°C26.6°C26.6°C0.50.113.413 h
June 33.3°C29.4°C29.4°C00.013.714 h
July 34.7°C30.9°C30.9°C00.013.614 h
August 35.0°C31.1°C31.1°C00.013.113 h
September, selected 33.7°C29.4°C29.4°C00.012.312 h
October 30.6°C26.6°C26.6°C0.40.211.612 h
November 25.6°C22.3°C22.3°C121.610.911 h
December 20.7°C17.5°C17.5°C152.310.511 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 Ar Rifā‘

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 Ar Rifā‘) is explained once on the Ar Rifā‘ year overview and on the Sources, method and limits page.

Al Muharraq and Manama lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.