March in Koh Tao averages 30°C (86°F) during the day and 27°C (81°F) at night. Quite a bit of rainfall is typical this month, with around 87 mm (3.4 in) on average. An umbrella is a good idea.
Should you favor a climate that's both dry and comfortably warm, January and February typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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Pick a month to see the average temperature, rainfall and sunshine in Koh Tao - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Koh Tao typically stay consistent throughout March, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 27°C (81°F).
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Koh Tao spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on weather observations in Koh Tao between 1982 and 2026, these are the recorded extremes during March.
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in March →
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).
Warm weather calls for comfortable, breathable clothing in March. 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Koh Tao climate overview or explore weather in Thailand.
Where to go in March - average daytime high across popular destinations.
Chiang Mai
37°C (99°F) Bangkok35°C (95°F) Jomtien Beach
32°C (90°F) Ao Nang Beach32°C (90°F) Hua Hin33°C (91°F) Ko Lanta
31°C (88°F) Patong Beach30°C (86°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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