Climate averages 1991–2020

Guelma weather
in August.

A very hot, fairly dry month: the warmest and the joint 2nd driest of the year.

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

Average high 34.7°C Daytime mean, August
Average low 19.6°C Night-time mean, August
Rainfall 18 mm 4 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Guelma · average highYear overview

August is a very hot month in Guelma: daytime highs average 34.7°C and nights cool to about 19.6°C. By daytime temperature it is the warmest month of the year.

Expect about 18 mm of rain on roughly 4 days, which makes August a fairly dry month (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 33 min on an average August day.

The nearest other city in this atlas is Souk Ahras (51 km away). In August its highs average 33.4°C, 1.3°C cooler than Guelma, with 27 mm of rain.

Among the 55 cities listed in Algeria, Guelma ranks joint 18th of 55 for the warmest August highs and joint 47th of 55 for the driest August (rainfall, lowest first). The mean August high of those 55 cities is 34.2°C; Guelma is 0.5°C warmer than that mean.

From August to September, average highs fall by 5.2°C to 29.5°C, and monthly rainfall rises from 18 mm to 40 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. 0510152025303540 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 1000

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

Every month, side by side

Guelma climate table

1991–2020
Monthly climate averages for Guelma, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 13.9°C3.7°C3.7°C6610.610.010 h
February 14.5°C3.9°C3.9°C6010.210.811 h
March 17.5°C6.1°C6.1°C7310.711.912 h
April 20.4°C8.3°C8.3°C6810.413.113 h
May 25.1°C11.9°C11.9°C537.914.114 h
June 30.4°C15.9°C15.9°C183.514.615 h
July 34.6°C18.9°C18.9°C4.51.314.414 h
August, selected 34.7°C19.6°C19.6°C183.713.514 h
September 29.5°C17.2°C17.2°C408.012.412 h
October 25.0°C13.4°C13.4°C588.611.311 h
November 18.8°C8.6°C8.6°C639.810.310 h
December 14.9°C5.2°C5.2°C619.59.710 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 Guelma

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