Koh Samet Weather in April
With daytime temperatures of 31°C (88°F) and nighttime lows of 27°C (81°F), April in Koh Samet brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 110 mm (4.3 in) falls on average.
Rainfall in Koh Samet in April
You can typically expect 8 days of rain this month, averaging around 110 mm (4.3 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Koh Samet in April
In April, expect very high temperatures in Koh Samet, with highs of 31°C (88°F) and lows of 27°C (81°F) at night. It's usually most comfortable outside during the morning and later in the day. Nights are warm at 27°C (81°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down.
Sunshine in Koh Samet in April
The days are predominantly sunny, with an estimated total of around 210 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.For Koh Samet itself, January, February and December generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Koh Samet's climate page.
Koh Samet Temperature in April
Min Temperature
27°C (81°F)
Max Temperature
31°C (88°F)
Chance of Rain
25%
Precipitation
110 mm (4.3 in)
Rainy days
8 days
Humidity
77% *
Sunshine
210 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Koh Samet typically stay consistent throughout April, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in April
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in April
Historical weather for Koh Samet in April
Browse day-by-day weather records for Koh Samet spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Koh Samet historical weather extremes in April
Based on weather observations in Koh Samet between 1976 and 2026, these are the recorded extremes during April.
- On April 7, 2013, temperatures climbed to 38°C (100°F), marking the warmest April day on record.
- The coldest April day was on April 28, 2018, with a maximum of 26°C (79°F).
- Koh Samet registered its coldest April night on April 9, 1982, with temperatures dropping to 19°C (66°F).
Best Places in Thailand in April
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in April →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Koh Samet in April
Warm weather calls for comfortable, breathable clothing in April. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Koh Samet in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Koh Samet's climate page.
Temperature Rainfall Sunshine Humidity
See the full Koh Samet climate overview or explore weather in Thailand.
