Climate averages 1991–2020

Butterworth weather
in August.

A hot, very wet month: the 7th warmest and the 8th driest of the year.

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

Average high 30.3°C Daytime mean, August
Average low 24.5°C Night-time mean, August
Rainfall 217 mm 24 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Butterworth · average highYear overview

August is a hot month in Butterworth: daytime highs average 30.3°C and nights cool to about 24.5°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 217 mm of rain on roughly 24 days, which makes August a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average August day.

The nearest other city in this atlas is Paya Terubong (10 km away). In August its highs average 28.6°C, 1.6°C cooler than Butterworth, with 201 mm of rain.

Among the 72 cities listed in Malaysia, Butterworth ranks joint 11th of 72 for the warmest August highs and joint 66th of 72 for the driest August (rainfall, lowest first). The mean August high of those 72 cities is 29.8°C; Butterworth is 0.5°C warmer than that mean.

From August to September, average highs fall by 0.6°C to 29.7°C, and monthly rainfall rises from 217 mm to 242 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. 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

Butterworth climate table

1991–2020
Monthly climate averages for Butterworth, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.8°C23.4°C23.4°C9616.011.812 h
February 30.8°C23.8°C23.8°C9015.811.912 h
March 31.2°C24.5°C24.5°C16122.212.112 h
April 30.7°C24.8°C24.8°C20427.612.212 h
May 30.4°C24.9°C24.9°C23126.312.412 h
June 30.5°C24.8°C24.8°C16620.612.412 h
July 30.4°C24.5°C24.5°C17321.012.412 h
August, selected 30.3°C24.5°C24.5°C21723.512.312 h
September 29.7°C24.2°C24.2°C24225.612.212 h
October 29.1°C24.1°C24.1°C33429.012.012 h
November 29.0°C23.9°C23.9°C29227.011.912 h
December 29.1°C23.6°C23.6°C16720.111.812 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 Butterworth

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

Kota Kuala Muda lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.