Thailand
Koh Chang in December
🌤️ Cool seasonPleasant, humid and some showers.
🎒 Pack: quick-dry fabrics · sunglasses & hat
Why December scores 8.9What goes into the score
How it works- Weather comfort8.5
- ✓Comfortable temperatures (25.9°C highs / 21.7°C lows)
- !Very humid/sticky (dew point 21.5°C)
- ✓Mostly dry (~70 mm rain)
- Air quality9.3
- ✓Good (within WHO guideline) (PM2.5 ~9 µg/m³)
- Seasonal hazards10.0
- ·No notable seasonal hazards
- Safety baseline8.0
- ·Normal precautions
| Dec | Jan | |
|---|---|---|
| Score | 8.9 Excellent | 9.0 Excellent |
| Season | 🌤️ Cool season | 🌤️ Cool season |
| High / low | 26° / 22° | 26° / 22° |
| Rain | 70 mm | 56 mm |
| Humidity | dew pt 22° | dew pt 21° |
| PM2.5 | 9 µg/m³ | 11 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast).
Holidays & crowdsDecember 2026
Long weekendThere's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.
- HM King Bhumibol Adulyadej the Great's Birthday 5–7 Dec · 3 days off in a row
- New Year 31 Dec – 3 Jan · 4 days off in a row
Other public holidays: Constitution Day (10 Dec)
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore Koh ChangEvents, sights, food & souvenirs
Check event dates locallyKoh Chang is a large, mountainous island in Trat province near the Cambodian border, with jungle waterfalls, west-coast beaches and fishing villages.
No major events on our calendar for December.
Coming up later
Songkran (Thai New Year)Every year13-15 April every year
Thai New Year water festival.
Why go: Water fights along the main road; drive carefully.
Where: White Sand Beach and main road
Loy KrathongDate variesFull moon of the 12th Thai lunar month, usually November; date moves each year
Krathong are floated on the sea under the full moon.
Why go: Marks the start of the dry high season.
Where: Beaches and piers
Klong Plu Waterfall
A three-tier waterfall with a swimming pool at its base, inside the national park.
💡 Flow is strongest during and right after the rainy season.
White Sand Beach
The island's busiest beach, with resorts, bars and restaurants.
Bang Bao
A fishing village built on a long pier at the southern end, now lined with shops and seafood restaurants.
Salak Phet
A quieter fishing village on the east coast with stilt houses and mangroves.
Koh Chang Marine National Park islandsgreat in Dec
Snorkelling and diving trips go to nearby islands such as Koh Wai and Koh Rang.
💡 Seas are rough and trips limited during the south-west monsoon.
Lonely Beach
A west-coast beach with a backpacker scene and rocky snorkelling spots.
Fresh seafood
Fish, crab and prawns, often grilled or steamed with lime and chilli.
💡 Pier restaurants at Bang Bao and Salak Phet
Moo cha muang
Eastern Thai pork curry flavoured with sour cha muang leaves.
💡 Local Thai eateries
Thai street food
Curries, noodles and grilled skewers.
💡 Small local restaurants and markets
Dried seafood
Dried squid, shrimp and fish from the island's fishing villages.
💡 Bang Bao and Salak Phet
Trat yellow oil (nam man lueang)
A herbal liniment Trat province is well known for.
💡 Pharmacies and souvenir shops
Airport transfer Kiwitaxi
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