Sihanoukville Weather in May
May in Sihanoukville brings very high temperatures, with daytime highs of 31°C (88°F) and nights around 27°C (81°F). It's part of the rainy season, with 387 mm (15 in) of rainfall on average, so an umbrella or poncho is a good idea.
Rainfall in Sihanoukville in May
Sihanoukville is in the rainy season in May, with rain on around 17 days and an average of 387 mm (15 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Sihanoukville in May
Daytime highs in Sihanoukville in May reach 31°C (88°F), with nights around 27°C (81°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Sihanoukville in May
With approximately 225 hours of sunshine, the days are filled with clear skies during the day. Rain typically falls in the afternoon or evening, keeping mornings and early parts of the day sunny.May in Sihanoukville has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Cambodia, check out our Sihanoukville's climate page.
Sihanoukville Temperature in May
Min Temperature
27°C (81°F)
Max Temperature
31°C (88°F)
Chance of Rain
58%
Precipitation
387 mm (15 in)
Rainy days
17 days
Sunshine
225 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Sihanoukville typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in May
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Sihanoukville in May
Browse day-by-day weather records for Sihanoukville spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sihanoukville historical weather extremes in May
Our historical data for Sihanoukville spans 1993 to 2026, revealing these weather extremes.
- Sihanoukville recorded its highest May temperature of 36°C (97°F) on May 3, 2024.
- The lowest daytime temperature in May was 27°C (81°F), recorded on May 11, 2002.
- Nighttime temperatures dropped to 23°C (73°F) on May 30, 2007, marking the coldest May night on record.
Best Places in Cambodia in May
Find out more about the weather in Cambodia and which places have the best travel conditions in this month. See all of Cambodia in May →
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What to Wear in Sihanoukville in May
Warm but pleasant conditions in Sihanoukville in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Sihanoukville in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Cambodia, check out our Sihanoukville's climate page.
See the full Sihanoukville climate overview or explore weather in Cambodia.
