Climate averages 1991–2020

Nakhon Sawan weather
in May.

A very hot, wet month: the 3rd warmest and the 9th driest of the year.

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

Average high 34.5°C Daytime mean, May
Average low 26.3°C Night-time mean, May
Rainfall 156 mm 21 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Nakhon Sawan · average highYear overview

May is a very hot month in Nakhon Sawan: daytime highs average 34.5°C and nights cool to about 26.3°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 156 mm of rain on roughly 21 days, which makes May a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 51 min on an average May day.

The nearest other city in this atlas is Nong Prue (142 km away). In May its highs average 33.0°C, 1.5°C cooler than Nakhon Sawan, with 153 mm of rain.

Among the 46 cities listed in Thailand, Nakhon Sawan ranks 1st of 46 for the warmest May highs and 34th of 46 for the driest May (rainfall, lowest first). The mean May high of those 46 cities is 32.7°C; Nakhon Sawan is 1.9°C warmer than that mean.

From May to June, average highs fall by 1.4°C to 33.1°C, and monthly rainfall falls from 156 mm to 147 mm.

The annual picture

May 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. 152025303540 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 3000

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

Every month, side by side

Nakhon Sawan climate table

1991–2020
Monthly climate averages for Nakhon Sawan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.9°C20.6°C20.6°C9.71.911.311 h
February 33.3°C22.4°C22.4°C112.011.612 h
March 35.6°C25.0°C25.0°C386.212.012 h
April 36.5°C26.6°C26.6°C6211.312.512 h
May, selected 34.5°C26.3°C26.3°C15620.912.913 h
June 33.1°C25.8°C25.8°C14723.313.013 h
July 32.4°C25.4°C25.4°C16123.413.013 h
August 31.5°C25.0°C25.0°C21525.112.713 h
September 31.1°C24.6°C24.6°C27225.912.212 h
October 30.4°C23.8°C23.8°C14317.111.812 h
November 30.4°C22.2°C22.2°C244.711.411 h
December 29.8°C20.2°C20.2°C7.71.211.211 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

May in nearby cities

Distance from Nakhon Sawan

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