Koh Samui

Koh Samui Weather in March

Average temperatures, rainfall, sunshine and the best places to visit in Koh Samui, Thailand in March.

Are you planning a trip a to Koh Samui, Thailand in March and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Koh Samui in March

Koh Samui, Thailand is a region in Thailand. March in Koh Samui generally has temperatures that range from warm to very warm, with precipitation levels ranging from moderate to high.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is warm in Chaweng Beach at 30°C (86°F) to very warm in Suratthani at 34°C (93°F). Nighttime temperatures generally drop to 25°C (77°F) in Suratthani and 27°C (81°F) in Chaweng Beach. 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.

For a closer look at conditions across Koh Samui, Thailand, refer to the map below.

Precipitation

In March, precipitation varies across different areas. From moderate rainfall in Nathon with an average of 94 mm (3.7 in) to high rainfall in Suratthani with 102 mm (4 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. Chaweng Beach sees close to 240 hours of sunlight, making it great for sun lovers.

Explore Koh Samui by month

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

Best Places to Visit in Koh Samui in March

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Koh Samui.

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 Koh Samui

What is the weather like in March for some of the most popular destinations in Koh Samui, Thailand?

Temperature range in Koh Samui (March)

Precipitation variation in Koh Samui (March)

Chaweng Beach

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

February
March
April
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Monthly sun hours
215 hours
240 hours
201 hours
Monthly rainfall
45 mm (1.8 in)
96 mm (3.8 in)
109 mm (4.3 in)
Monthly rainy days
5 days
5 days
8 days
Weather conditions

Lamai Beach

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

February
March
April
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Monthly sun hours
215 hours
240 hours
201 hours
Monthly rainfall
46 mm (1.8 in)
97 mm (3.8 in)
109 mm (4.3 in)
Monthly rainy days
5 days
5 days
8 days
Weather conditions

Bophut

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

February
March
April
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Monthly sun hours
215 hours
240 hours
201 hours
Monthly rainfall
45 mm (1.8 in)
95 mm (3.7 in)
108 mm (4.3 in)
Monthly rainy days
5 days
5 days
8 days
Weather conditions

Choeng Mon Beach

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

February
March
April
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Monthly sun hours
215 hours
240 hours
201 hours
Monthly rainfall
45 mm (1.8 in)
95 mm (3.7 in)
109 mm (4.3 in)
Monthly rainy days
5 days
5 days
8 days
Weather conditions

Mae Nam Beach

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

February
March
April
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Monthly sun hours
215 hours
240 hours
201 hours
Monthly rainfall
45 mm (1.8 in)
95 mm (3.7 in)
108 mm (4.3 in)
Monthly rainy days
5 days
5 days
8 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Koh Samui, in Thailand.

Popular cities in March

Day & night temperatures, rainfall and average weather in Koh Samui in March.

City Weather Day temp Night temp Rainfall
Chaweng Beach 30°C (86°F) 27°C (81°F) 96 mm (3.8 in)
Lamai Beach 30°C (86°F) 27°C (81°F) 97 mm (3.8 in)
Bophut 30°C (86°F) 27°C (81°F) 95 mm (3.7 in)
Choeng Mon Beach 30°C (86°F) 27°C (81°F) 95 mm (3.7 in)
Mae Nam Beach 30°C (86°F) 27°C (81°F) 95 mm (3.7 in)
Bangrak Beach 30°C (86°F) 27°C (81°F) 95 mm (3.7 in)

Koh Samui weather in March: frequently asked questions

What is the weather like in Koh Samui, Thailand in March?

Koh Samui, Thailand typically experiences tolerable weather in March, 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 Koh Samui, Thailand in March?

Chaweng Beach averages a daytime maximum of 30°C (86°F) in March, with overnight lows close to 27°C (81°F).

Does Koh Samui, Thailand get a lot of rain in March?

Not particularly. Chaweng Beach averages just 96 mm (3.8 in) of rain in March, making it a mostly dry month for Koh Samui, Thailand.

Is March a Good Time to Visit Koh Samui, Thailand?

In our opinion, March is a good time to visit Koh Samui, Thailand with overall pleasant weather in Chaweng Beach.

Generally speaking, January and February provide 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 Koh Samui.

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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