Climate averages 1991–2020

Sungai Petani weather
in December.

A hot, wet month: the 10th warmest and the 5th driest of the year.

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

Average high 29.1°C Daytime mean, December
Average low 23.2°C Night-time mean, December
Rainfall 161 mm 18 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Sungai Petani · average highYear overview

December is a hot month in Sungai Petani: daytime highs average 29.1°C and nights cool to about 23.2°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 161 mm of rain on roughly 18 days, which makes December a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 48 min on an average December day.

The nearest other city in this atlas is Kota Kuala Muda (14 km away). In December its highs average 29.2°C, about as warm as Sungai Petani, with 167 mm of rain.

Among the 72 cities listed in Malaysia, Sungai Petani ranks joint 7th of 72 for the warmest December highs and 3rd of 72 for the driest December (rainfall, lowest first). The mean December high of those 72 cities is 28.5°C; Sungai Petani is 0.6°C warmer than that mean.

From December to January, average highs rise by 1.2°C to 30.2°C, and monthly rainfall falls from 161 mm to 82 mm.

The annual picture

December 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

Sungai Petani climate table

1991–2020
Monthly climate averages for Sungai Petani, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.2°C23.1°C23.1°C8211.911.812 h
February 31.3°C23.6°C23.6°C8512.511.912 h
March 31.2°C24.3°C24.3°C16321.112.112 h
April 30.4°C24.6°C24.6°C21226.512.212 h
May 30.2°C24.8°C24.8°C21527.112.412 h
June 30.2°C24.6°C24.6°C15321.812.412 h
July 30.0°C24.4°C24.4°C15222.012.412 h
August 29.9°C24.3°C24.3°C19224.412.312 h
September 29.4°C24.1°C24.1°C23126.512.212 h
October 28.8°C23.9°C23.9°C31329.212.012 h
November 28.9°C23.6°C23.6°C27726.111.912 h
December, selected 29.1°C23.2°C23.2°C16117.811.812 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

December in nearby cities

Distance from Sungai Petani

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