Koh Tao

Surat Thani Province Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Surat Thani Province, Thailand in September.

Planning a getaway to Surat Thani Province, Thailand 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 to Expect in Surat Thani Province in September

Surat Thani Province, Thailand is a region in Thailand. September in Surat Thani Province 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 Koh Tao at 30°C (86°F) to very warm in Ban Bang Ban at 33°C (91°F). Nighttime temperatures generally drop to 24°C (75°F) in Ban Bang Ban and 27°C (81°F) in Koh Tao. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

To explore the conditions in Surat Thani Province, Thailand in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Laem Set Beach with an average of 143 mm (5.6 in) to heavy rainfall in Khao Sok with 347 mm (14 in).

Average sunshine

Sunshine is moderately available across various locations. In Chaweng Beach, you can expect around 145 hours of sunlight in September, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Surat Thani Province by month

Pick a month to see the average temperature, rainfall and sunshine in Surat Thani Province — and find the best time to visit. (based on Koh Samui)

Best Places to Visit in Surat Thani Province in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Surat Thani Province.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Surat Thani Province

What is the weather like in September for some of the most popular destinations in Surat Thani Province, Thailand?

Temperature range in Surat Thani Province (September)

Precipitation variation in Surat Thani Province (September)

Chaweng Beach

In September Chaweng Beach generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly sun hours
152 hours
145 hours
146 hours
Monthly rainfall
107 mm (4.2 in)
162 mm (6.4 in)
302 mm (12 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Koh Samui

In September Koh Samui generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly sun hours
152 hours
145 hours
146 hours
Monthly rainfall
103 mm (4.1 in)
156 mm (6.1 in)
296 mm (12 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Lamai Beach

In September Lamai Beach generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly sun hours
152 hours
145 hours
146 hours
Monthly rainfall
99 mm (3.9 in)
152 mm (6 in)
296 mm (12 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Koh Tao

In September Koh Tao generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly sun hours
153 hours
146 hours
146 hours
Monthly rainfall
150 mm (5.9 in)
202 mm (8 in)
311 mm (12 in)
Monthly rainy days
19 days
18 days
20 days
Weather conditions

Bophut

In September Bophut generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly sun hours
152 hours
145 hours
146 hours
Monthly rainfall
111 mm (4.4 in)
166 mm (6.5 in)
304 mm (12 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Surat Thani Province, in Thailand.

Popular cities in September

Day & night temperatures, rainfall and average weather in Surat Thani Province in September.

City Weather Day temp Night temp Rainfall
Koh Samui 30°C (86°F) 27°C (81°F) 156 mm (6.1 in)
Chaweng Beach 30°C (86°F) 27°C (81°F) 162 mm (6.4 in)
Lamai Beach 30°C (86°F) 27°C (81°F) 152 mm (6 in)
Koh Tao 30°C (86°F) 27°C (81°F) 202 mm (8 in)
Bophut 30°C (86°F) 27°C (81°F) 166 mm (6.5 in)
Choeng Mon Beach 30°C (86°F) 27°C (81°F) 170 mm (6.7 in)

Surat Thani Province weather in September: frequently asked questions

What is the weather like in Surat Thani Province, Thailand in September?

Surat Thani Province, Thailand typically experiences unpleasant weather in September, part of the season. Daytime highs in Chaweng Beach average around 30°C (86°F), and temperatures drop to about 27°C (81°F) at night.

What is the average temperature in Surat Thani Province, Thailand in September?

Average temperatures in Surat Thani Province, Thailand during September range from a nighttime low near 27°C (81°F) to a daytime high around 30°C (86°F) in Chaweng Beach.

Does Surat Thani Province, Thailand get a lot of rain in September?

Expect plenty of rainfall. Chaweng Beach records an average of 162 mm (6.4 in) in September, putting it among the wetter months for Surat Thani Province, Thailand.

Is September a Good Time to Visit Surat Thani Province, Thailand?

In our opinion, September is a good time to visit Surat Thani Province, Thailand with overall tolerable weather in Chaweng Beach. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in January and February offering mostly perfect weather in Chaweng Beach. In contrast, October and November tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Surat Thani Province.

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.

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