Climate averages 1991–2020

Thung Khru weather
in September.

A hot, very wet month: the joint 8th warmest and the wettest of the year.

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

Average high 30.5°C Daytime mean, September
Average low 25.5°C Night-time mean, September
Rainfall 237 mm 25 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Thung Khru · average highYear overview

September is a hot month in Thung Khru: daytime highs average 30.5°C and nights cool to about 25.5°C. By daytime temperature it is the joint 8th warmest of the 12 months.

Expect about 237 mm of rain on roughly 25 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.

The nearest other city in this atlas is Phra Pradaeng (4 km away). In September its highs average 30.8°C, about as warm as Thung Khru, with 237 mm of rain.

Among the 46 cities listed in Thailand, Thung Khru ranks joint 21st of 46 for the warmest September highs and joint 17th of 46 for the driest September (rainfall, lowest first). The mean September high of those 46 cities is 30.3°C; Thung Khru is 0.1°C warmer than that mean.

From September to October, average highs fall by 0.4°C to 30.1°C, and monthly rainfall falls from 237 mm to 191 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. 2025303540 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 2500

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

Every month, side by side

Thung Khru climate table

1991–2020
Monthly climate averages for Thung Khru, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.4°C22.5°C22.5°C152.911.411 h
February 31.5°C24.2°C24.2°C132.811.712 h
March 32.6°C26.0°C26.0°C416.312.012 h
April 33.7°C27.2°C27.2°C6810.312.412 h
May 32.7°C27.0°C27.0°C13020.012.713 h
June 31.8°C26.6°C26.6°C12721.812.913 h
July 31.2°C26.2°C26.2°C13422.912.813 h
August 30.9°C25.9°C25.9°C14423.612.613 h
September, selected 30.5°C25.5°C25.5°C23725.312.212 h
October 30.1°C24.6°C24.6°C19120.711.812 h
November 30.5°C23.7°C23.7°C426.411.512 h
December 30.2°C22.3°C22.3°C9.51.711.311 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 Thung Khru

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

Bangkok, Mueang Nonthaburi and Phra Pradaeng lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.