Koh Ker
Cambodia UNESCO World Heritage Site
Koh Ker is an archaeological site located in Preah Vihear Province, Cambodia. As a World Heritage Site, it is one of the most looked-up sights in the country on this site.
Planning a visit
The best time to visit is during the dry season from December through February, when rainfall is minimal with only 2 to 3 rainy days per month and temperatures range between 19 °C and 33 °C. March and April remain relatively dry, though temperatures rise to 34 °C. The rainy season begins in May and continues through November, peaking in September with 321 mm of rain over 24 days. Travelers should plan accordingly, as heavy rainfall is frequent during these months.
The site is located 246 km from Phnom Penh. Visitors arriving by air should use the Siem Reap-Angkor International Airport, which is located 55 km from the site. Due to its location in Preah Vihear Province, visits to Koh Ker are often combined with travel to other destinations in the region.
Weather by month
The warmest month is March, with an average high of 34 °C. The wettest is September, with about 321 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 31 | 33 | 34 | 34 | 32 | 31 | 31 | 30 | 30 | 30 | 30 | 30 |
| Average low, °C | 20 | 22 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 22 | 21 | 19 |
| Rainfall, mm | 4 | 11 | 42 | 94 | 210 | 267 | 262 | 284 | 321 | 185 | 54 | 5 |
| Rainy days | 3 | 2 | 6 | 11 | 20 | 23 | 27 | 26 | 24 | 16 | 7 | 2 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
