Month guide · Koh Samui · Thailand
Koh Samui in March
What March is really like in Koh Samui: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: Gunther Dihlmann, CC BY-SA 3.0
Quick answer
March is one of the best months to visit Koh Samui. Expect average highs of 31°C (88°F), lows of 25°C (77°F), about 5 rainy days and roughly 12 hours of daylight. Hot and sunny with calm water; one of the best months for Ang Thong and snorkelling.
Key facts
- Average high / low
- 31°C (88°F) / 25°C (77°F)
- Rainy days
- About 5
- Daylight
- About 12 hours
- Sea temperature
- 28°C (82°F)
- Crowds
- Busy
- Hotel prices
- High
Weather in March
March is the 7th-warmest month in Koh Samui: days average 31°C (88°F) against a yearly average high of 31°C (88°F), and nights fall to about 25°C (77°F). Rain falls on roughly 5 of its 31 days. Compared with February (30°C (86°F)), March is about as warm; by April highs climb to around 33°C (91°F).
- Sunrise (15 March)
- About 06:27
- Sunset (15 March)
- About 18:31
- Daylight
- About 12 hours
- Sea
- 28°C (82°F)
Dry season (February–April). Sunny, calm and warm, turning very hot in April; peak prices in February.
Crowds and prices
On a 1–5 scale, March rates 4 for crowds (the peak is February at 5) and 4 for hotel prices (highest in February). Book accommodation early: March is one of the pricier months.
Events in March
March has no major recurring festival in Koh Samui, which usually means easier bookings.
What to do in March
Mild, settled days suit walking, viewpoints and time outdoors.
Nature · Lamai
Hin Ta and Hin Yai
Go in the early morning before tour buses, and wear shoes with grip for the slippery rocks.
- Time needed
- 30 minutes
- Cost
- Free
- Free
- Photo spot
- Nature
Religious site · Lamai
Wat Khunaram
On the ring road near Lamai, this temple displays the mummified body of Luang Pho Daeng, a revered monk who died in meditation posture in the 1970s, seated in a glass case and famously wearing sunglasses.
- Time needed
- 30 minutes
- Cost
- Free
- Free
- History
- Off the beaten path
Experience · Chaweng
Samui Elephant Sanctuary
Choose the morning programme, when it is cooler and the elephants are most active.
- Time needed
- Half a day
- Cost
- Expensive
- Kids
- Nature
Experience · Chaweng
Thai cooking class
Several cooking schools in Chaweng, Lamai and Bophut run half-day classes covering curries, tom yum, pad thai and desserts, often starting with a visit to a local market.
- Time needed
- Half a day
- Cost
- Mid-priced
- Food
- Kids
- Rainy day
- Couples
The sea averages 28°C (82°F) — warm enough to swim. Best beaches near Koh Samui.
What to pack
For highs near 31°C, lows near 25°C and 5 wet days: light, breathable clothes, a sun hat and high-factor sunscreen; comfortable walking shoes.
Is March a good time to visit Koh Samui?
One of the best months to visit Koh Samui. The other best months are February, April and June–August. Compare every month.
Koh Samui in other months
Questions travellers ask
+Is March a good time to visit Koh Samui?
It is one of the best months to visit Koh Samui. Hot and sunny with calm water; one of the best months for Ang Thong and snorkelling.
+How warm is Koh Samui in March?
Average highs are around 31°C (88°F) and lows around 25°C (77°F).
+Does it rain a lot in Koh Samui in March?
Expect rain on about 5 days of the month.