Weather in September in Koh Samui
Planning a getaway to Koh Samui this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:
What is the weather like in Koh Samui in September?
Koh Samui is a region in Thailand. September in Koh Samui generally has temperatures that range from warm to very warm, with precipitation levels ranging from high to heavy.
Temperatures
The average maximum daytime temperatures vary from warm in Chaweng Beach at 30°C to very warm in Suratthani at 32°C. Nighttime temperatures generally drop to 25°C in Suratthani and 27°C in Chaweng Beach. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.
Precipitation
In September, precipitation varies across different areas. From high rainfall in Laem Set Beach with an average of 143 mm to heavy rainfall in Suratthani with 208 mm.Average sunshine
The city Chaweng Beach usually sees around 145 hours of sunlight, indicating a moderately sunny period.For a closer look at September's conditions in Koh Samui, see the map below. For a more detailed look at Koh Samui's yearly weather, check out our Koh Samui climate page.
Where to go in Koh Samui in September
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Popular destinations
What is the weather like in September for the 5 most popular destinations in Koh Samui?
Chaweng Beach
In September Chaweng Beach generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Lamai Beach
In September Lamai Beach generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.
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Bophut
In September Bophut generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Choeng Mon Beach
In September Choeng Mon Beach generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Mae Nam Beach
In September Mae Nam Beach generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Is your destination not in the list? Have a look at other destinations in Koh Samui, in Thailand.
Is September the best time to visit Koh Samui?
Given the typically tolerable weather conditions in Chaweng Beach, September might be a good time to visit Koh Samui.
Generally speaking, the best visiting conditions can be found in January and February offering mostly perfect weather in Chaweng Beach. On the other hand, the weather in October and November tend to be poor.
Interested in more climate information?
We have much more information about the climate in Koh Samui.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for every country in the world. Are you going to Thailand? Get detailed historical weather averages for many cities in Thailand.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.