Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
January verdict
Very good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 8.2h per day, so bright days are a strong part of the month. Rainfall averages 37mm, which is relatively low for holiday planning.

Monthly averages
Temp
30°C
Rain
37mm
Sun
8.2h
Sea
17°C
Weather score
82
Very good
Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 37mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.2h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Compare Thailand with nearby places by weather score, rain, sun, temperature, and swim conditions.
January30°C average high
January is on the cooler side of Thailand's year, useful if you prefer less intense daytime heat.
Warmest monthsMarch to May
This stretch sets the upper range for average daytime heat.
January37mm average rain
January is one of Thailand's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
January8.2 hours average sun
January is brighter than Thailand's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary to April
This stretch has the strongest sunshine in the monthly averages.
January17°C average sea
January is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaMarch to November
Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.
January82 weather score
January is one of Thailand's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.