Mu Ko Surin National Park, Thailand in September

September31°C average high

September is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.

Warmest monthsFebruary to April

This stretch sets the upper range for average daytime heat.

September505mm average rain

September is one of Mu Ko Surin National Park's wettest months, so rain is likely to be a major planning factor.

Driest monthsJanuary to April and November to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

September5.2 hours average sun

September is one of Mu Ko Surin National Park's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsJanuary to March

This stretch has the strongest sunshine in the monthly averages.

September29°C average sea

September is below Mu Ko Surin National Park's yearly sea-temperature average, so swimming can feel fresher.

Warmest seaMarch to July and November

Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.

September48 weather score

September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJanuary to March and December

These months have the strongest weather score in the monthly averages.