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When to go · Siem Reap

Siem Reap in May

Mixed month. Hot, humid, first storms.

Key facts

Verdict
Mixed
Temperature
34°C (93°F) / 25°C (77°F)
average high / low
Rain days
15
Crowds
Low
Cambodia overall
Prices
Low
Cambodia overall

Verdict

MixedVoykit month rating for Siem Reap

Hot, humid, first storms.

All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.

Is another month better than May?

May is rated mixed. These months rate higher:

Weather in May

Long-term averages
  • Siem ReapHighs around 34 °C (93 °F), lows around 25 °C (77 °F), rain on about 15 days
  • Angkor and the plains, Cambodia · Siem Reap, Phnom Penh, Battambang, Kampong Chamhot

    Dry and cooler Nov–Feb; April tops 38 °C (100 °F); the green season brings afternoon storms and flooded rural roads, but the moats and rice fields look their best.

Hot dry season

Very hot, the driest and dustiest stretch; quiet temples early.

Watch: Above 35 °C at midday; Khmer New Year closures in April.

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • Visak Bochea check

    Lunar calendar · Pagodas

    Public holiday; temples busy with worshippers.

Crowds and prices

Crowds · Cambodia overall
Low
Prices · Cambodia overall
Low

Cambodia overall: Heat plus the first storms; low prices and quiet temples.

Compare two months

Weather, crowds and prices for any two months in Siem Reap, side by side.

  • Verdict

    May: Mixed

    Jan: Great (better)

  • Daytime high

    May: 34 °C (93 °F)

    Jan: 31 °C (88 °F)

  • Night low

    May: 25 °C (77 °F)

    Jan: 20 °C (68 °F)

  • Rain days

    May: 15

    Jan: 1 (better)

  • Crowds

    May: Low

    Jan: High

  • Prices

    May: Low

    Jan: High

  • Festivals listed

    May: 1

    Jan: 3

May: Hot, humid, first storms.

January: Cool, dry; the busiest month.

Siem Reap: figures are long-term averages from this guide, not a forecast.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen
  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Cambodia in May →