Climate averages 1991–2020

Marseille 15 weather
in August.

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

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

Average high 29.1°C Daytime mean, August
Average low 18.8°C Night-time mean, August
Rainfall 14 mm 2 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Marseille 15 · average highYear overview

August is a hot month in Marseille 15: daytime highs average 29.1°C and nights cool to about 18.8°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 14 mm of rain on roughly 2 days, which makes August a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average August day.

The nearest other city in this atlas is Marseille (9 km away). In August its highs average 27.8°C, 1.3°C cooler than Marseille 15, with 14 mm of rain.

Among the 57 cities listed in France, Marseille 15 ranks 4th of 57 for the warmest August highs and joint 2nd of 57 for the driest August (rainfall, lowest first). The mean August high of those 57 cities is 25.0°C; Marseille 15 is 4.1°C warmer than that mean.

From August to September, average highs fall by 4.9°C to 24.3°C, and monthly rainfall rises from 14 mm to 64 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. 05101520253035 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

Marseille 15 climate table

1991–2020
Monthly climate averages for Marseille 15, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 10.4°C2.8°C2.8°C597.39.49 h
February 11.3°C2.6°C2.6°C415.610.510 h
March 14.8°C5.3°C5.3°C375.611.912 h
April 17.6°C8.3°C8.3°C587.213.413 h
May 21.7°C12.2°C12.2°C425.714.715 h
June 26.3°C16.3°C16.3°C213.715.315 h
July 29.3°C18.8°C18.8°C9.81.815.115 h
August, selected 29.1°C18.8°C18.8°C142.414.014 h
September 24.3°C15.2°C15.2°C645.612.513 h
October 19.5°C11.9°C11.9°C828.211.111 h
November 14.2°C7.2°C7.2°C929.99.710 h
December 11.0°C3.8°C3.8°C587.89.09 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 Marseille 15

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 Marseille 15) is explained once on the Marseille 15 year overview and on the Sources, method and limits page.