Climate averages 1991–2020

Klang weather
in May.

A hot, wet month: the 2nd warmest and the 6th driest of the year.

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

Average high 29.8°C Daytime mean, May
Average low 25.2°C Night-time mean, May
Rainfall 154 mm 23 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Klang · average highYear overview

May is a hot month in Klang: daytime highs average 29.8°C and nights cool to about 25.2°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 154 mm of rain on roughly 23 days, which makes May a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 15 min on an average May day.

The nearest other city in this atlas is Shah Alam (11 km away). In May its highs average 29.9°C, about as warm as Klang, with 154 mm of rain.

Among the 72 cities listed in Malaysia, Klang ranks joint 46th of 72 for the warmest May highs and joint 5th of 72 for the driest May (rainfall, lowest first). The mean May high of those 72 cities is 30.1°C; Klang is 0.3°C cooler than that mean.

From May to June, average highs rise by 0.1°C to 29.9°C, and monthly rainfall falls from 154 mm to 97 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. 20253035 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 3500

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

Every month, side by side

Klang climate table

1991–2020
Monthly climate averages for Klang, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.6°C23.9°C23.9°C20021.112.012 h
February 29.2°C24.0°C24.0°C12616.512.012 h
March 29.7°C24.6°C24.6°C16822.112.112 h
April 29.7°C24.9°C24.9°C18824.612.212 h
May, selected 29.8°C25.2°C25.2°C15423.312.312 h
June 29.9°C25.2°C25.2°C9716.812.312 h
July 29.7°C25.0°C25.0°C10016.912.312 h
August 29.6°C24.9°C24.9°C10918.612.212 h
September 29.4°C24.7°C24.7°C12920.512.112 h
October 29.1°C24.6°C24.6°C18724.612.112 h
November 28.5°C24.2°C24.2°C31427.712.012 h
December 28.3°C24.1°C24.1°C28026.111.912 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 Klang

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

Petaling Jaya, Shah Alam and Puchong lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.