Climate averages 1991–2020

Metz weather
in August.

A warm, moderately wet month: one of the warmest and the joint 5th driest of the year.

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

Average high 24.0°C Daytime mean, August
Average low 14.8°C Night-time mean, August
Rainfall 64 mm 11 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Metz · average highYear overview

August is a warm month in Metz: daytime highs average 24.0°C and nights cool to about 14.8°C. By daytime temperature it is one of the warmest months of the year.

Expect about 64 mm of rain on roughly 11 days, which makes August a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 24 min on an average August day.

The nearest other city in this atlas is Nancy (48 km away). In August its highs average 24.2°C, about as warm as Metz, with 68 mm of rain.

Among the 57 cities listed in France, Metz ranks joint 40th of 57 for the warmest August highs and joint 36th of 57 for the driest August (rainfall, lowest first). The mean August high of those 57 cities is 25.0°C; Metz is 1.0°C cooler than that mean.

From August to September, average highs fall by 4.3°C to 19.7°C, and monthly rainfall rises from 64 mm to 68 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. -5051015202530 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

Metz climate table

1991–2020
Monthly climate averages for Metz, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 5.1°C0.2°C0.2°C6712.28.79 h
February 6.6°C0.1°C0.1°C5810.810.110 h
March 10.5°C2.4°C2.4°C6011.811.912 h
April 14.4°C5.2°C5.2°C5511.013.714 h
May 18.2°C9.4°C9.4°C7012.215.315 h
June 21.7°C12.6°C12.6°C6410.916.116 h
July 24.0°C14.9°C14.9°C6010.915.816 h
August, selected 24.0°C14.8°C14.8°C6411.014.414 h
September 19.7°C11.4°C11.4°C689.312.713 h
October 14.8°C8.1°C8.1°C6911.410.811 h
November 9.2°C3.9°C3.9°C7212.79.29 h
December 5.7°C1.2°C1.2°C8414.08.38 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 Metz

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