SeasonMapKep weather in December
Cambodia
December in Kep: hot, a little rain — an excellent time to visit.
#3 of 12 months in Kep · #96 of 1383 destinations to visit in December · comfort 90/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Kep in December
Notes from nearby Phnom Penh (137 km away)
Kep doesn't have its own notes for December yet — these are about Phnom Penh, close enough to share the season.
Cambodia's forum calls December one of the best months in the country — dry season, humidity well down from the wet months, clear skies and a light breeze, with cool mornings. Regulars say daytime still runs close to 30°C so shorts and t-shirts are standard, with a light layer for early morning or evening transport.
Add your own note from Kep's card on the map.
Kep climate normals — December
| Daytime high | 29°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Sea temperature | 29°C / 84°F | ♨️ bath-warm |
| Rainfall | 32 mm / 1.2 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 21°C / 70°F | |
| Sunshine | 10 h/day | |
| Daylight | 11.5 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Kep 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.
Busyschool holidays in 5 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Kep'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).
Best weatherKep's weather peaks December–February.
Best weatherFair weatherToughest weather
What's on in Kep in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Dry season and the island boats
1 Nov – 30 Apr · usuallyThe half of the year the sea is flat enough for the Rabbit Island boats to run to time and the road up into Kep National Park is not a red-mud slide.
Nearby, and something's on
Within 300 km of Kep — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Kep?
Kep in December — FAQ
- Is December a good time to visit Kep?
- December in Kep: hot, a little rain — an excellent time to visit. It ranks #3 of 12 months for Kep on SeasonMap's comfort score (90/100).
- What is the weather like in Kep in December?
- In December, Kep averages a daily high of 29.4°C and a low of 23.3°C, with about 31.6 mm of rain over roughly 6.6 rainy days.
- What is the air quality in Kep in December?
- Kep has a mean US Air Quality Index of about 51 in December.
Other months in Kep
Compare Kep in December
Warmer or cooler than Kep in December
Similar destinations in Southeast Asia — December
Within 300 km: Phu Quoc's Dry season around 15 Nov – 30 Apr, and Phnom Penh's Dry season around 15 Nov – 30 Apr.