Kep weather in December

December in Kep: hot, a little rain — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Kep🇰🇭 Cambodia · Southern Vietnam & Cambodia · Beach87
  1. 93Jan
  2. 92Feb
  3. 89Mar
  4. 83Apr
  5. 71May
  6. 69Jun
  7. 59Jul
  8. 67Aug
  9. 57Sep
  10. 63Oct
  11. 80Nov
  12. 87Dec

#4 of 12 months in Kep · #214 of 1413 destinations to visit in December · comfort 87/100 (tier A)

Days
29°C
Nights
24°C
Wet days
8
Sun
9.5 h
Humidity
74%
Daylight
12 h
Kep, Cambodia
Photo: Văn Long Bùi · Pexels

Traveller notes on Kep in December

Notes from nearby Phu Quoc (48 km away)

Kep doesn't have its own notes for December yet — these are about Phu Quoc, close enough to share the season.

December is the dry season here, and the thing the board explains that no column can is wind direction. The northeast wind of the dry months, roughly November to May, leaves the west coast of the island calm and clear - which is where the sunsets are, and where they tell you to stay in December. Our wind column reads 25.8 kph, so it is a real wind, simply blowing off the land on that side. The rain has largely gone, 59.1mm across 10 days and mostly at night. On temperature our row runs warmer than their recollection: they say 25 to 27C, we read 30.8C reading as 34C at 71.8 percent humidity, over 23.6C nights, with a 29.4C sea. The record: 9.4 hours of sun and AQI 48.
NortheastWindWestCoastCalm · December · 1 month ago · about Phu Quoc · Read more on Tripadvisor ↗

Other months in Kep

Cambodia forum threads are consistent that January sits squarely in the dry season here - lower temperatures, much lower humidity than the wetter months, and genuinely pleasant conditions extending from the November/December stretch through January. One visitor specifically mentioned swimming at Angkoul Beach in January with fine water quality despite the beach itself not being pristine. Kep's famous crab market was the other recurring highlight, with regulars recommending buying fresh crab straight from vendors who'll cook it to order with Kampot pepper. One seasonal note worth knowing: the region's solar salt fields, a nearby attraction, only work and look their best in dry season - during the wet months they're just flooded fields.
KepProvinceCambodiaRegular · January · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe February as a good time to visit Cambodia generally - somewhat cooler than the peak heat ahead but already warming up, and noticeably drier, with leaves dropping from trees and rice fields mostly harvested and dry. Posters do flag genuine dust as a byproduct of this dry stretch. Even within the broader November-February dry season, posters describe a common daily pattern of a sunny, pleasant morning giving way to more cloud by late afternoon, with a real chance of a passing shower or brief thunderstorm by evening - Cambodia's tropical climate means even the dry season isn't fully rain-free. Posters generally pair a Kep visit with nearby Kampot, treating the two coastal towns as a natural combination.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Kep's card on the map.

Kep climate normals — December

Daytime high29°C / 85°F🥵 hot
Nighttime low24°C / 74°F
Feels like (high)32°C / 90°F
Sea temperature29°C / 84°F♨️ bath-warm
Rainfall46 mm / 1.8 in🌦 some rain
Rainy days8 days
Humidity74%💧 humid
Dew point21°C / 70°F
Sunshine9.5 h/day
Daylight11.5 h
Wind19 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.

Shoulder seasonschool holidays in 5 of the markets that fill it, an ordinary month(estimated)

JFMAMJJASOND

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).

Fair weatherKep's weather peaks January–March.

JFMAMJJASOND

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 · usually

    The 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.

What's on around the world in December →

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?

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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 #4 of 12 months for Kep on SeasonMap's comfort score (87/100).
What is the weather like in Kep in December?
In December, Kep averages a daily high of 29.3°C and a low of 23.6°C, with about 45.7 mm of rain over roughly 8.1 rainy days.
What is the air quality in Kep in December?
Kep has a mean US Air Quality Index of about 51 in 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.