March · Thailand
Best time to visit Koh Tao in March Weather, crowds & prices
Weather in Koh Tao in March
Average temperature 28°C, 53 mm of rain, about 28 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
March score
9.2/10
Ranked #1 of 12 months
- Avg temp
- 28°C
- Rainfall
- 53 mm
- Humidity
- 79%
- Days with 6h+ sun
- 28
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
March in Koh Tao scores 9.2/10 for beach and coastal travel - the single best month of the year. Expect around 28°C, 53 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Ko Tao is Thailand's dive-cert island-compact coves, training reefs, and a backpacker nightlife pocket in Mae Haad. Best window: the drier months outside peak monsoon.
March in Koh Tao tops the year's climate scores
Days in March average 28°C (83°F) and humidity near 79% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 53 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 11.9 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for Koh Tao at 9.2/10 — the reference point every other month on this page is measured against.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Koh Tao in March?
- In March, Koh Tao averages 28°C, 53 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 9.2/10.
- Is March a good time to visit Koh Tao?
- March earns a 9.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Koh Tao in March?
- Expect about 53 mm of rain in March. Average humidity is 79% and there are about 28 days with 6+ hours of sunshine.
Curated in Koh Tao
Tickets & experiences
Things to do in Koh Tao
Koh Tao, Thailand. Live activities and tours from GetYourGuide, matched to this destination.