Climate averages 1991–2020

Samut Prakan weather
in August.

A hot, wet month: the 7th warmest and the 9th driest of the year.

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

Average high 30.8°C Daytime mean, August
Average low 26.0°C Night-time mean, August
Rainfall 114 mm 22 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Samut Prakan · average highYear overview

August is a hot month in Samut Prakan: daytime highs average 30.8°C and nights cool to about 26.0°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 114 mm of rain on roughly 22 days, which makes August a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 34 min on an average August day.

The nearest other city in this atlas is Phra Pradaeng (10 km away). In August its highs average 31.2°C, about as warm as Samut Prakan, with 144 mm of rain.

Among the 46 cities listed in Thailand, Samut Prakan ranks joint 27th of 46 for the warmest August highs and joint 4th of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 30.7°C; Samut Prakan is 0.1°C warmer than that mean.

From August to September, average highs fall by 0.4°C to 30.4°C, and monthly rainfall rises from 114 mm to 212 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. 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

Samut Prakan climate table

1991–2020
Monthly climate averages for Samut Prakan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.5°C22.6°C22.6°C153.011.411 h
February 31.5°C24.2°C24.2°C122.611.712 h
March 32.5°C26.0°C26.0°C385.912.012 h
April 33.5°C27.1°C27.1°C679.712.412 h
May 32.6°C27.0°C27.0°C12418.212.713 h
June 31.7°C26.6°C26.6°C10020.012.913 h
July 31.1°C26.2°C26.2°C10720.912.813 h
August, selected 30.8°C26.0°C26.0°C11421.612.613 h
September 30.4°C25.5°C25.5°C21224.412.212 h
October 30.1°C24.6°C24.6°C20821.011.812 h
November 30.6°C23.6°C23.6°C436.211.512 h
December 30.3°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

August in nearby cities

Distance from Samut Prakan

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

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