Question 1

Is Ko Samui safe to visit?

Accepted Answer

Travelia rates Ko Samui, Thailand “safe”, following US State Department and UK FCDO travel advisories.

Question 2

What is the sea temperature in Ko Samui in July?

Accepted Answer

The sea off Ko Samui averages about 30°C in July.

Question 3

When is the best time to visit Ko Samui?

Accepted Answer

Ko Samui is warmest in Apr and driest in Feb; mild (18–28°C) months are Jan, Feb, Mar, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	26	27	28	29	29	28	28	28	27	27	26	26
Sea °C	28	28	29	30	30	30	30	29	29	29	28	28
Rain (days)	81	48	68	76	129	86	88	101	127	255	255	190

Ko Samui, Thailand

Climate by month