Climate averages 1991–2020

Hat Yai weather
in January.

A hot, moderately wet month: the 10th warmest and the 2nd driest of the year.

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

Average high 28.7°C Daytime mean, January
Average low 23.3°C Night-time mean, January
Rainfall 86 mm 12 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Hat Yai · average highYear overview

January is a hot month in Hat Yai: daytime highs average 28.7°C and nights cool to about 23.3°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 86 mm of rain on roughly 12 days, which makes January a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 46 min on an average January day.

The nearest other city in this atlas is Ban Mai (23 km away). In January its highs average 27.6°C, 1.2°C cooler than Hat Yai, with 104 mm of rain.

Among the 46 cities listed in Thailand, Hat Yai ranks 39th of 46 for the warmest January highs and 44th of 46 for the driest January (rainfall, lowest first). The mean January high of those 46 cities is 30.2°C; Hat Yai is 1.4°C cooler than that mean.

From January to February, average highs rise by 1.5°C to 30.2°C, and monthly rainfall falls from 86 mm to 44 mm.

The annual picture

January 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

Hat Yai climate table

1991–2020
Monthly climate averages for Hat Yai, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 28.7°C23.3°C23.3°C8612.411.812 h
February 30.2°C23.5°C23.5°C447.311.912 h
March 31.4°C24.1°C24.1°C9412.612.112 h
April 31.7°C24.7°C24.7°C13619.312.312 h
May 31.4°C25.0°C25.0°C15023.512.412 h
June 31.1°C24.8°C24.8°C11419.412.513 h
July 31.0°C24.6°C24.6°C11519.712.512 h
August 31.0°C24.5°C24.5°C12120.712.312 h
September 30.4°C24.2°C24.2°C16424.012.212 h
October 29.2°C23.9°C23.9°C28528.112.012 h
November 28.3°C23.7°C23.7°C34727.311.812 h
December 27.9°C23.5°C23.5°C27721.911.712 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

January in nearby cities

Distance from Hat Yai

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