Climate averages 1991–2020

Mestre weather
in September.

A warm, wet month: the 4th warmest and the 11th driest of the year.

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

Average high 23.0°C Daytime mean, September
Average low 15.5°C Night-time mean, September
Rainfall 123 mm 10 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Mestre · average highYear overview

September is a warm month in Mestre: daytime highs average 23.0°C and nights cool to about 15.5°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 123 mm of rain on roughly 10 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 35 min on an average September day.

The nearest other city in this atlas is Treviso (19 km away). In September its highs average 22.8°C, about as warm as Mestre, with 120 mm of rain.

Among the 79 cities listed in Italy, Mestre ranks 63rd of 79 for the warmest September highs and 70th of 79 for the driest September (rainfall, lowest first). The mean September high of those 79 cities is 24.3°C; Mestre is 1.3°C cooler than that mean.

From September to October, average highs fall by 5.0°C to 18.0°C, and monthly rainfall falls from 123 mm to 121 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. -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 1500

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

Every month, side by side

Mestre climate table

1991–2020
Monthly climate averages for Mestre, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 7.2°C1.0°C1.0°C607.79.19 h
February 9.0°C1.5°C1.5°C637.710.310 h
March 12.8°C4.6°C4.6°C707.911.912 h
April 16.8°C8.4°C8.4°C8210.313.513 h
May 21.3°C13.0°C13.0°C9310.214.915 h
June 25.3°C17.0°C17.0°C789.215.616 h
July 27.8°C19.3°C19.3°C638.215.315 h
August 27.9°C19.6°C19.6°C838.414.114 h
September, selected 23.0°C15.5°C15.5°C12310.112.613 h
October 18.0°C11.4°C11.4°C12110.411.011 h
November 12.5°C6.6°C6.6°C12711.09.610 h
December 8.0°C2.0°C2.0°C818.58.89 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 Mestre

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