2018 Koh Samui Events Calendar: Island Calendar [Updated Often]

Who’s super organised? The 2018 Koh Samui events calendar is here – ready and waiting for anyone clever enough to plan their holidays 6, 9, or 12 months out. Are you more of a last-minute sort? You’re in luck – Koh Samui is often a last-minute kind of place. Below, you’ll find annual Koh Samui events, holidays, festivals and 2018 Full Moon Party dates.

I update this calendar regularly as new or last-minute events are announced. Enjoy!

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Koh Samui events 2018

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January 2018

01 New Year’s Day
02 Full Moon Party (Koh Phangan)
26 Australia Day
27 Hyzenbrownie Open – The Flaskenpouch 2018 (disc golf tournament)
31 Full Moon Party (Koh Phangan)

January weather + details

February 2018

01 Samui Swine Classic V (disc golf tournament) to Feb 3
14 Valentine’s Day
16 Chinese New Year

February weather + details

March 2018

01 Makha Bucha Day (Buddhist holy day)
02 Full Moon Party (Koh Phangan)
24 Koh Samui Midnight Run (charity 5k and 10k)
31 Full Moon Party (Koh Phangan)

March weather + details

April 2018

01 Koh Samui’s Jellyfish Petting Zoo (open 1 day only)
01 Easter (not a Thai holiday, some hotels do Easter egg hunts)
06 Chakri Day (Thai national holiday)
13 Songkran (Thai New Year, through April 15)
22 Earth Day (beach clean-up parties c/o Trash Hero Koh Samui)
29 Full Moon Party (Koh Phangan)

April weather + details

May 2018

01 Labour Day
26 Koh Samui Regatta 2018 (through June 2)
30 Full Moon Party (Koh Phangan)

May weather + details

June 2018

27 Full Moon Party (Koh Phangan)

June weather + details

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July 2018

29 Full Moon Party (Koh Phangan)

July weather + details

August 2018

12 Her Majesty the Queen’s Birthday (also Mother’s Day in Thailand)
12 Mother’s Day observed
26 Full Moon Party (Koh Phangan)

August weather + details

September 2018

24 Full Moon Party (Koh Phangan)

September weather + details

October 2018

Rainy season on Koh Samui (usually) begins in late October/early November

13 Passing of His Majesty the Late King Bhumibol
23 Chulalongkorn Memorial Day (in honour of King Rama V)
25 Full Moon Party (Koh Phangan)

October weather + details

November 2018

01 Angthong Marine Park (usually) closes, through December
22 Full Moon Party (Koh Phangan)
23 Loy Krathong (Thai lantern festival)

November weather + details

December 2018

05 His Majesty the Late King’s Birthday (also Thailand’s Father’s Day)
10 Constitution Day
22 Full Moon Party (Koh Phangan)
23 Anthong Marine Park opens again after rainy season
25 Koh Samui Christmas
31 Koh Samui New Year’s Eve

December weather + details

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