Month-by-month travel weather
Ko Samui March weather
Ko Samui, Thailand · March
Comfort becomes a timing problem
March can feel hotter, and midday outdoor time may drain energy quickly. If humidity rises, the heat can feel heavier than the number suggests.
Using indoor anchors (cafés/resort time) keeps the day stable.
March averages at a glance
Average low
around 25–26°C
Average high
around 32–33°C
Average rainfall
around 30–90 mm
Wet days
about 4–10 days
What to wear in March in Ko Samui
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Breathable fabrics help.
- • Small towel + hydration/electrolytes improve comfort.
- • A thin layer helps indoors.
Travel tips for visiting Ko Samui in March
- • Keep midday mostly indoors; do beach time early/late.
- • Pre-plan shade points for long beach exposure.
March weather in Ko Samui — FAQ
Q. Is March hotter than Jan–Feb?
A. Many people feel a noticeable rise, especially for midday outdoor plans.
Q. Does rain cool things down?
A. Sometimes briefly, but humidity afterward can feel heavier. It varies.
Explore Ko Samui
These pages are connected so you can compare conditions and decide for yourself.