Climate averages 1991–2020

Woodlands weather
in September.

A hot, wet month: the joint 7th warmest and the 4th driest of the year.

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

Average high 28.5°C Daytime mean, September
Average low 25.1°C Night-time mean, September
Rainfall 170 mm 24 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Woodlands · average highYear overview

September is a hot month in Woodlands: daytime highs average 28.5°C and nights cool to about 25.1°C. By daytime temperature it is the joint 7th warmest of the 12 months.

Expect about 170 mm of rain on roughly 24 days, which makes September a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average September day.

The nearest other city in this atlas is Johor Bahru (5 km away). In September its highs average 28.9°C, about as warm as Woodlands, with 170 mm of rain.

Among the 4 cities listed in Singapore, Woodlands ranks joint 1st of 4 for the warmest September highs and 4th of 4 for the driest September (rainfall, lowest first). The mean September high of those 4 cities is 28.4°C; Woodlands is 0.1°C warmer than that mean.

From September to October, average highs rise by 0.1°C to 28.6°C, and monthly rainfall rises from 170 mm to 242 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. 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

Woodlands climate table

1991–2020
Monthly climate averages for Woodlands, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.0°C24.2°C24.2°C20121.712.012 h
February 28.7°C24.4°C24.4°C13317.312.112 h
March 29.1°C24.8°C24.8°C20923.512.112 h
April 29.2°C25.1°C25.1°C24227.512.112 h
May 29.0°C25.5°C25.5°C21728.012.212 h
June 28.9°C25.6°C25.6°C17324.812.212 h
July 28.5°C25.4°C25.4°C16224.012.212 h
August 28.4°C25.4°C25.4°C16724.812.212 h
September, selected 28.5°C25.1°C25.1°C17023.712.112 h
October 28.6°C24.9°C24.9°C24226.412.112 h
November 28.2°C24.6°C24.6°C33428.412.112 h
December 27.9°C24.4°C24.4°C31327.312.012 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 Woodlands

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

Johor Bahru, Mukim Pulai and Ulu Tiram lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.