Hot
Average highs reach 33°C, so days can feel very hot.
September verdict
Good for holiday weather
Average highs reach 33°C, so days can feel very hot. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 175mm, so some wet days are possible.
Monthly averages
Temp
33°C
Rain
175mm
Sun
5.8h
Sea
30°C
Weather score
57
Good
Hot
Average highs reach 33°C, so days can feel very hot.
Showers
Rainfall averages 175mm, so some wet days are possible.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Nakhon Si Thammarat, Thailand with nearby places by weather score, rain, sun, temperature, and swim conditions.
September33°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMarch to September
This stretch sets the upper range for average daytime heat.
September175mm average rain
September sits on the drier side of Nakhon Si Thammarat's year, which helps with sightseeing and transfers.
Driest monthsJanuary to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September5.8 hours average sun
September is one of Nakhon Si Thammarat's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsFebruary to April
This stretch has the strongest sunshine in the monthly averages.
September30°C average sea
September is close to Nakhon Si Thammarat's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaApril to September
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
September57 weather score
September scores below Nakhon Si Thammarat's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsFebruary to March
These months have the strongest weather score in the monthly averages.