Climate averages 1991–2020

Djelfa weather
in September.

A warm, fairly dry month: the 4th warmest and one of the wettest of the year. Meets the pleasant-weather rule

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

Average high 27.5°C Daytime mean, September
Average low 15.3°C Night-time mean, September
Rainfall 36 mm 6 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Djelfa · average highYear overview

September is a warm month in Djelfa: daytime highs average 27.5°C and nights cool to about 15.3°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 36 mm of rain on roughly 6 days, which makes September a fairly dry month (one of the wettest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.

The nearest other city in this atlas is Hassi Bahbah (49 km away). In September its highs average 28.7°C, 1.2°C warmer than Djelfa, with 24 mm of rain.

Among the 55 cities listed in Algeria, Djelfa ranks joint 39th of 55 for the warmest September highs and 41st of 55 for the driest September (rainfall, lowest first). The mean September high of those 55 cities is 29.2°C; Djelfa is 1.7°C cooler than that mean.

From September to October, average highs fall by 6.0°C to 21.5°C, and monthly rainfall falls from 36 mm to 32 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. -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 500

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

Every month, side by side

Djelfa climate table

1991–2020
Monthly climate averages for Djelfa, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 9.9°C0.8°C0.8°C296.010.110 h
February 11.4°C1.2°C1.2°C255.410.911 h
March 15.4°C3.9°C3.9°C296.211.912 h
April 19.2°C6.8°C6.8°C366.013.013 h
May 24.6°C11.3°C11.3°C305.614.014 h
June 30.5°C16.1°C16.1°C164.414.414 h
July 34.7°C20.1°C20.1°C8.52.914.214 h
August 33.6°C19.7°C19.7°C144.613.513 h
September, selected 27.5°C15.3°C15.3°C366.312.412 h
October 21.5°C10.5°C10.5°C325.211.311 h
November 14.5°C5.3°C5.3°C214.710.410 h
December 10.8°C2.1°C2.1°C235.49.910 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 Djelfa

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