Month guide · Koh Samui · Thailand
Koh Samui in April
What April is really like in Koh Samui: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: Abrget47j, CC BY-SA 3.0
Quick answer
April is one of the best months to visit Koh Samui. Expect average highs of 33°C (91°F), lows of 25°C (77°F), about 6 rainy days and roughly 12.3 hours of daylight. The hottest weeks of the year; Songkran water fights take over Chaweng and Lamai.
Key facts
- Average high / low
- 33°C (91°F) / 25°C (77°F)
- Rainy days
- About 6
- Daylight
- About 12.3 hours
- Sea temperature
- 29°C (84°F)
- Crowds
- Busy
- Hotel prices
- High
Weather in April
April is the warmest month in Koh Samui: days average 33°C (91°F) against a yearly average high of 31°C (88°F), and nights fall to about 25°C (77°F). Rain falls on roughly 6 of its 30 days. Compared with March (31°C (88°F)), April is warmer; by May highs stay near 33°C (91°F).
- Sunrise (15 April)
- About 06:10
- Sunset (15 April)
- About 18:30
- Daylight
- About 12.3 hours
- Sea
- 29°C (84°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, April rates 4 for crowds (the peak is February at 5) and 4 for hotel prices (highest in February). Book accommodation early: April is one of the pricier months.
Events in April
- Songkran — Thai New Year water festival (13–15 April)
Dates move from year to year. Check the organiser’s site before booking travel around an event.
What to do in April
With intense heat, plan around indoor sights and keep outdoor time flexible.
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
Experience · Chaweng
Muay Thai fight night
Ringside seats are pricier but give a much better view of the rituals before each bout.
- Time needed
- 2–3 hours
- Cost
- Mid-priced
- After dark
- Rainy day
- Active
Religious site · Bang Rak (Big Buddha Beach)
Big Buddha (Wat Phra Yai)
A 12-metre golden seated Buddha built in 1972 stands on a small islet joined to the north-east coast by a causeway.
- Time needed
- 45 minutes
- Cost
- Free
- Iconic
- Free
- Photo spot
- Views
Beach · Chaweng
Chaweng Beach
Walk the north end in the early morning, when the sand is empty and the water is clearest.
- Time needed
- Half a day
- Cost
- Free
- Free
- Iconic
- Outdoors
- Kids
- After dark
The sea averages 29°C (84°F) — warm enough to swim. Best beaches near Koh Samui.
What to pack
For highs near 33°C, lows near 25°C and 6 wet days: light, breathable clothes, a sun hat and high-factor sunscreen; comfortable walking shoes.
Is April a good time to visit Koh Samui?
One of the best months to visit Koh Samui, with a notable event on the calendar. The other best months are February–March and June–August. Compare every month.
Koh Samui in other months
Questions travellers ask
+Is April a good time to visit Koh Samui?
It is one of the best months to visit Koh Samui. The hottest weeks of the year; Songkran water fights take over Chaweng and Lamai.
+How warm is Koh Samui in April?
Average highs are around 33°C (91°F) and lows around 25°C (77°F).
+Does it rain a lot in Koh Samui in April?
Expect rain on about 6 days of the month.