Climate averages 1991–2020

Witten weather
in May.

A mild, moderately wet month: the 5th warmest and the 2nd driest of the year.

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

Average high 17.6°C Daytime mean, May
Average low 9.2°C Night-time mean, May
Rainfall 67 mm 12 days with ≥1 mm
Daylight 16 h Sunrise to sunset, per day
Every month in Witten · average highYear overview

May is a mild month in Witten: daytime highs average 17.6°C and nights cool to about 9.2°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 67 mm of rain on roughly 12 days, which makes May a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 34 min on an average May day.

The nearest other city in this atlas is Bochum (10 km away). In May its highs average 17.7°C, about as warm as Witten, with 67 mm of rain.

Among the 120 cities listed in Germany, Witten ranks joint 84th of 120 for the warmest May highs and joint 71st of 120 for the driest May (rainfall, lowest first). The mean May high of those 120 cities is 17.9°C; Witten is 0.3°C cooler than that mean.

From May to June, average highs rise by 2.8°C to 20.4°C, and monthly rainfall rises from 67 mm to 74 mm.

The annual picture

May 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. -50510152025 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

Witten climate table

1991–2020
Monthly climate averages for Witten, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 4.6°C0.3°C0.3°C8314.48.48 h
February 5.8°C0.3°C0.3°C6912.59.910 h
March 9.4°C2.4°C2.4°C7113.511.812 h
April 13.8°C5.3°C5.3°C5511.513.814 h
May, selected 17.6°C9.2°C9.2°C6712.415.616 h
June 20.4°C12.3°C12.3°C7412.616.517 h
July 22.4°C14.5°C14.5°C8914.016.116 h
August 22.2°C14.5°C14.5°C8513.314.615 h
September 18.5°C11.5°C11.5°C7411.712.713 h
October 13.8°C8.1°C8.1°C7412.510.711 h
November 8.7°C4.3°C4.3°C7513.78.99 h
December 5.3°C1.4°C1.4°C8915.07.98 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

May in nearby cities

Distance from Witten

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

Bochum, Recklinghausen and Castrop-Rauxel lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.