SeasonMapKhao Lak weather in December
Thailand
December in Khao Lak: sweltering, rainy, with clean air — fine if you can take 37°C afternoons.
#4 of 12 months in Khao Lak · #365 of 1383 destinations to visit in December · comfort 83/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Khao Lak in December
Notes from nearby Khao Sok (46 km away)
Khao Lak doesn't have its own notes for December yet — these are about Khao Sok, close enough to share the season.
Khao Sok's forum calls December squarely in the dry season, which runs through to April — regulars staying in the park's treehouses report warm days in the high 20s to low 30s°C and mild nights in the low-to-mid 20s. It's a genuinely humid rainforest even in the drier months, so don't expect crisp, dry air — just a lot less rain than the wet season that runs mid-April to early December.
Other months in Khao Lak
Khao Lak's forum rates January among the best months of the year — hot, sunny days around 32-34°C, clear blue skies, with rain minimal. Regulars flag online forecasts as unreliable here, routinely showing thunderstorm icons that rarely translate into more than an isolated hour-long shower, and note evenings can turn cool enough for a light cardigan.
Add your own note from Khao Lak's card on the map.
Khao Lak climate normals — December
| Daytime high | 32°C / 89°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Feels like (high) | 37°C / 99°F | |
| Sea temperature | 29°C / 84°F | ♨️ bath-warm |
| Rainfall | 99 mm / 3.9 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 11.6 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Khao Lak in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyDry season, calm Andaman, school holidays in 5 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Khao Lak's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherKhao Lak's weather peaks January–March, best around February.
Best weatherFair weatherToughest weather
What's on in Khao Lak in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Dry season, calm Andaman
1 Nov – 20 Apr · usuallyCrowdedFlat water, no shore break and the whole coast open for business. This is the northern-European charter season and the beachfront runs at capacity from Christmas to March.
Nearby, and something's on
Within 300 km of Khao Lak — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Khao Lak?
Khao Lak in December — FAQ
- Is December a good time to visit Khao Lak?
- December in Khao Lak: sweltering, rainy, with clean air — fine if you can take 37°C afternoons. It ranks #4 of 12 months for Khao Lak on SeasonMap's comfort score (83/100).
- What is the weather like in Khao Lak in December?
- In December, Khao Lak averages a daily high of 31.5°C and a low of 23.2°C, with about 99.1 mm of rain over roughly 14.6 rainy days.
- What is the air quality in Khao Lak in December?
- Khao Lak has a mean US Air Quality Index of about 37 in December.
Other months in Khao Lak
Compare Khao Lak in December
Warmer or cooler than Khao Lak in December
Similar destinations in Southeast Asia — December
Within 300 km: Khao Sok's Morning mist on Cheow Lan around 1 Nov – 15 Feb, and Phuket's Dry season, calm sea around 15 Nov – 15 Apr.