May Rainfall and Precipitation in Koh Samui
Koh Samui Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Koh Samui - and find the best time to visit. See also: Koh Samui weather by month.
Best Places to Visit in Koh Samui in May
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Koh Samui.
Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in May: pale blue is dry, deep blue is wet.
Koh Samui precipitation in May: frequently asked questions
How much rainfall does Koh Samui, Thailand receive in May?
In May, Chaweng Beach typically experiences high rainfall, averaging about 131 mm (5.2 in). This translates to a mix of wet and dry days throughout the month.
How many days does it rain in Koh Samui, Thailand in May?
Rainfall in Chaweng Beach typically falls on roughly 17 days days in May.
Is May part of the rainy season in Koh Samui, Thailand?
Not really. May is outside the wettest stretch of the year in Koh Samui, Thailand.
What is the wettest city in May in Koh Samui, Thailand?
Suratthani is the wettest city in Koh Samui, Thailand in May according to our database, with average rainfall of around 165 mm (6.5 in).
What is the driest city in May in Koh Samui, Thailand?
The driest place is Laem Set Beach with an average rainfall of 119 mm (4.7 in) according to our data.
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.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Discover Kok Kood: a hidden gem in Thailand
Discover the hidden gem of Thailand - Koh Kood! Explore stunning beaches, waterfalls and eco-friendly resorts while enjoying a peaceful atmosphere away from the crowds.
Warm Days, Cool Nights: 8 Destinations With the Perfect Day-Night Temperature
Prefer warm sunny days but cool evenings? Compare eight destinations with daytime temperatures of around 25–30°C, cooler nights, low rainfall and plenty of sunshine.
Where to Travel in July and August: Mexico, Thailand, Indonesia or Somewhere Else?
Compare July and August weather in Mexico, Thailand, Indonesia, Zanzibar and Sri Lanka, using historical climate data for temperature, rainfall and sunshine.
Discover Thailand: An Ultimate Guide for Yogis
Explore Thailand's best for yogis: serene retreats, spiritual growth, and adventure. Dive into yoga, meditation, and nature's tranquility for an unforgettable journey.