Kep weather in May

May in Kep: sweltering, soaked, with clean air — fine if you can take 27 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Kep🇰🇭 Cambodia · Southern Vietnam & Cambodia · Beach71
  1. 93Jan
  2. 92Feb
  3. 89Mar
  4. 83Apr
  5. 71May
  6. 69Jun
  7. 59Jul
  8. 67Aug
  9. 57Sep
  10. 63Oct
  11. 80Nov
  12. 87Dec

#7 of 12 months in Kep · #1021 of 1413 destinations to visit in May · comfort 71/100 (tier B)

Days
31°C
Nights
27°C
Wet days
27
Sun
9.8 h
Humidity
83%
Daylight
13 h
Kep, Cambodia
Photo: Văn Long Bùi · Pexels

Traveller notes on Kep in May

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 — May

Daytime high31°C / 88°F🔥 sweltering
Nighttime low27°C / 80°F
Feels like (high)37°C / 99°F
Sea temperature31°C / 89°F♨️ bath-warm
Rainfall224 mm / 8.8 in⛈ soaked
Rainy days27 days
Humidity83%💦 very humid
Dew point25°C / 77°F
Sunshine9.8 h/day
Daylight12.6 h
Wind16 km/h / 10 mph
Air quality (US AQI)41🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Kep in May

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 2 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 May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Wet season

    MonsoonRisk

    27 rainy days and about 224 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in May →

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 May — FAQ

Is May a good time to visit Kep?
May in Kep: sweltering, soaked, with clean air — fine if you can take 27 rainy days. It ranks #7 of 12 months for Kep on SeasonMap's comfort score (71/100).
What is the weather like in Kep in May?
In May, Kep averages a daily high of 30.9°C and a low of 26.6°C, with about 223.9 mm of rain over roughly 26.8 rainy days.
What is the air quality in Kep in May?
Kep has a mean US Air Quality Index of about 41 in May.

Within 300 km: Phu Quoc's Phu Quoc visa exemption on 1 Jan – 31 Dec, and Ho Chi Minh City's Reunification Day and May Day on 30 Apr – 1 May.