Facts checked against live data · 9 Oct 2026

Best avoided

Cambodia in May: Weather, Crowds & What's On

What May is actually like in Cambodia — average highs and lows, how much rain to expect, public holidays that fill trains and hotels, and verified places to go.

Average high
35°C
Average low
26°C
Rainfall
127mm

Where this month sits in the year

The 4th warmest month of Cambodia's year. The 6th wettest month, at 11% of the year's rain.

Public holidays in May

Domestic travel peaks around these dates — book earlier and expect busier sights.

  • May 1, 2027 ទិវាពលកម្មអន្តរជាតិ · International Labor Day
  • May 14, 2027 ព្រះរាជពិធីបុណ្យចម្រើនព្រះជន្ម ព្រះករុណា ព្រះបាទសម្តេចព្រះបរមនាថ នរោត្តម សីហមុនី · HM King Norodom Sihamoni's Birthday
  • May 20, 2027 ពិធីបុណ្យវិសាខបូជា · Visaka Bochea Day
  • May 24, 2027 ព្រះរាជពិធីច្រត់ព្រះនង្គ័ល · Royal Ploughing Ceremony

What's closed on your dates →

Planning a trip this month?

Cambodia travel guides → All countries →

Email me this guide

Save this timing guide

Get a link to this page in your inbox, plus a short weekly brief on which destinations are entering their best window. One email a week, unsubscribe anytime.

Climate figures are 10-year averages for Siem Reap, from NASA POWER; holidays from public calendars. Updated monthly.

Plan your trip to Cambodia

Cambodia eSIM & staying connected →

Some links above are affiliate links — if you book through them, Wander Atlas earns a small commission at no extra cost to you. It's how we keep every guide free.

Wander Atlas newsletter

One genuinely useful travel guide, every week.

New destinations, insider itineraries, and the practical stuff that saves your trip. No spam — unsubscribe anytime.

Subscribe and get our free printable trip-planning checklist.