Ko Samui: December Weather


Ko Samui Weather in December

December sees the end of the short wet season and the start of the dry season.

You can expect warm and sunny days interspersed with occasional short bursts of heavy rainfall that gradually lessen from the middle of December onwards.

December also brings strong winds that can make the east side of Ko Samui rough for swimming.


Ko Samui Weather Averages in December 

Average Temperature (°C)  Temperature icon  26°C (79°F)
Average High Temperature (°C)  Temperature icon  29°C (84°F)
Average Low Temperature (°C)  temperature icon  24°C (75°F)
Hours of Sunshine (Daily)  sun icon  7 hours per day
Hours of Daylight (Daily)  12  12 hours per day
Comfort Level  Moderately hot icon  Moderate heat & 85% humidity
UV Index  10  Very High
Days with some Rainfall  umbrella icon  9 days
Average Monthly Rainfall (mm)  rain cloud  150mm
Sea Temperature (°C)  swimming icon  28°C (82°F)
Weather averages for Ko Samui, Thailand

Best time to visit Ko Samui

The best time to visit Ko Samui is during the dry season from late-December to April, with February to April usually the driest months averaging 28°C (82°F).

Ko Samui Annual Weather


Ko Samui Monthly Weather Review

January February March April May June
July August September October November December
Latest update on this honeymoon destination: 11 June, 2020
SAVE $$$ on travel deals to the best honeymoon destinations
Honeymoon in Ko Samui – Search, compare and book the lowest possible prices on discounted airfares and hotels from our online travel partners.
© 2010-2020 Honeymoon Guide. All rights reserved. No part of this site may be reproduced without our written permission. Note: This information about top honeymoon destinations – Ko Samui December weather – was accurate when it was published, but can change without notice.