Climate averages 1991–2020

Najrān weather
in August.

A very hot, very dry month: the 3rd warmest and the 8th driest of the year.

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

Average high 36.7°C Daytime mean, August
Average low 21.3°C Night-time mean, August
Rainfall 2.4 mm fewer than one day with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Najrān · average highYear overview

August is a very hot month in Najrān: daytime highs average 36.7°C and nights cool to about 21.3°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 2.4 mm of rain on fewer than one day, which makes August a very dry month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 43 min on an average August day.

The nearest other city in this atlas is Şabyā (164 km away). In August its highs average 35.6°C, 1.1°C cooler than Najrān, with 42 mm of rain.

Among the 35 cities listed in Saudi Arabia, Najrān ranks joint 23rd of 35 for the warmest August highs and 26th of 35 for the driest August (rainfall, lowest first). The mean August high of those 35 cities is 37.8°C; Najrān is 1.0°C cooler than that mean.

From August to September, average highs fall by 2.4°C to 34.4°C, and monthly rainfall falls from 2.4 mm to under 1 mm.

The annual picture

August 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. 510152025303540 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

Najrān climate table

1991–2020
Monthly climate averages for Najrān, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 25.7°C9.6°C9.6°C1.60.511.211 h
February 28.1°C11.8°C11.8°C1.90.511.612 h
March 30.3°C15.1°C15.1°C9.52.012.012 h
April 32.2°C18.0°C18.0°C133.612.513 h
May 34.7°C20.5°C20.5°C4.31.012.913 h
June 36.8°C20.4°C20.4°C1.40.113.213 h
July 37.1°C21.5°C21.5°C1.60.413.113 h
August, selected 36.7°C21.3°C21.3°C2.40.512.713 h
September 34.4°C19.7°C19.7°C0.10.012.212 h
October 29.8°C16.3°C16.3°C3.30.511.812 h
November 27.0°C12.9°C12.9°C0.80.211.311 h
December 25.4°C9.7°C9.7°C0.20.011.111 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

August in nearby cities

Distance from Najrān

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