Cambodia weather in April is typically the year's hottest period: average temperatures hover near 31°C with daytime peaks often approaching the high 30s and only limited rainfall. Visitors planning trips in April should prepare for strong sun, high daytime heat and a major cultural event—the Khmer New Year (water festival) in mid-April.
What Cambodia weather in April looks like
Meteorological summaries for April show an average temperature of about 30.96°C, with maximum readings reported near 37°C and minimum readings near 28°C. These figures refer to shaded, instrument-measured values; temperatures felt on exposed streets or temple platforms are commonly 3–4°C higher than the official numbers.
Rain in April is usually light compared with the wet season. One set of figures records roughly 15 mm of precipitation and about two rainy days for the month. Other compiled tables note around eight hours of sunshine per day and list the chance of rain at about 40%, so local conditions can vary. The hottest portion of the day is generally between about 10:00 and 17:00 when solar radiation and air temperature are at their peak.
Humidity readings in different summaries range, so travellers should expect a warm, drying heat in some locations and more oppressive humidity in low-lying or riverside areas. Because several sources provide slightly different statistics, treat the temperature and rainfall numbers as approximate averages rather than exact day-by-day forecasts.
Key highlights and what this means for activities
April combines long daylight hours and relatively little precipitation, making outdoor sightseeing straightforward outside of the midday heat. The Khmer New Year—often called the Water Festival in casual usage—takes place on April 13–15 and brings a high concentration of public celebrations, processions and water-splashing customs in towns and villages.
Because April is a popular travel month, many heritage sites and public attractions operate normal hours with high visitor numbers during festival dates. Booking transport and accommodation in advance is recommended, particularly if you plan to be in major cultural centres in mid-April.
- Best time for temple photography: early morning (before 9:30) or late afternoon (after 16:30).
- Expect stronger sun exposure on open ruins and waterfronts; shade is limited at some sites.
- Festival crowds peak on April 13–15; plan logistics accordingly.
Practical tips for travelling in April
Hydration and sun protection are essential. Start increasing fluid intake several days before arrival if possible, and carry water and electrolytes while sightseeing. Lightweight, breathable clothing that dries quickly is more comfortable during long periods outdoors.
Apply broad-spectrum sunscreen and wear a wide-brimmed hat and sunglasses. Many travellers find that avoiding outdoor touring between about 11:00 and 15:00 reduces heat-related discomfort; use that time for indoor museums, air-conditioned cafés or rest breaks.
Because this month sees higher visitor demand, consider booking hotels and key transport in advance; many properties fill up around the New Year festival. If you are travelling overland from southern Vietnam, check options for routes between cities such as Saigon and Siem Reap well ahead of time to secure preferred departure times and seats. For information on cross-border and intercity options, see Saigon to Siem Reap.
- Pack a lightweight neck towel or cooling scarf for immediate relief.
- Carry basic medicines for heat exhaustion and sunburn; seek local medical advice if ill.
- Reserve hotels 4–8 weeks in advance if visiting during mid-April festival dates.
Cultural context: Khmer New Year and water celebrations
Mid-April marks the Cambodian New Year, traditionally observed on April 13–15 in the solar calendar. The period is filled with community rituals, family gatherings and public games. A distinctive custom at this time is the playful splashing of water, intended as a symbolic blessing and a practical way to cool down in the heat.
Festival activities can vary by city and province: urban centres often stage larger public events and performances, while smaller towns retain more family-focused traditions. If attending festival events, expect increased local travel, occasional road closures and lively street scenes. For broader seasonal planning across the region, refer to the seasonal travel guide which outlines how April compares to other months in Cambodia and neighbouring Vietnam.
Who should plan travel in April — and who might wait
April is a good choice for people who prioritise dry weather and want to experience the Khmer New Year celebrations despite the heat. Those who tolerate high temperatures and plan early-morning or late-afternoon sightseeing tend to find April convenient because thunderstorms and sustained rains are uncommon.
Travellers who are sensitive to strong daytime heat, who prefer cooler conditions for long walks, or who need guaranteed low temperatures for outdoor activities might consider visiting outside April. The cooler months later in the year bring milder daytime highs and are a better fit for extended outdoor trekking or cycling.
Comparisons: April versus other seasonal periods
| Season | Typical conditions | Advantages | Drawbacks |
|---|---|---|---|
| April (this guide) | Average ~30.96°C; highs near 37°C; light overall rainfall (~15 mm; ~2 rainy days) | Dry days for sightseeing; major cultural festivals | High daytime heat; crowded festival dates and higher prices |
| Dry season (Nov–Feb) | Generally cooler and drier than April; comfortable days and cooler nights | Lower heat stress for outdoor activities and trekking | Peak tourist numbers in some months; advance booking recommended |
| Wet season (May–Oct) | Increased rainfall and humidity; frequent afternoon or evening showers | Lush landscapes and fewer tourists at some sites | Short-term travel disruptions from heavy rain; higher humidity |
Frequently Asked Questions
Is April too hot to visit temples like Angkor?
April brings strong sun and high temperatures, especially midday. Many visitors still tour temples by starting early in the morning and returning to shade during the hottest hours. Expect instrument-measured temperatures around 31°C and higher on exposed surfaces.
Will I encounter much rain in April?
Rainfall in April is typically light compared with the wet season. Official summaries often cite around 15 mm of rain and roughly two rainy days, but localized showers can occur. Carrying a small, quick-dry rain layer is sensible but heavy rain is uncommon.
When is the Khmer New Year and what should I expect?
The Khmer New Year is usually celebrated on April 13–15. Expect public ceremonies, family gatherings and water-splashing activities. These dates coincide with peak local travel and increased demand for accommodation.
How far in advance should I book hotels for April?
Because April includes major festival dates and is a popular travel month, booking 1–2 months ahead for standard hotels is commonly recommended; for high-demand festival locations, allow more lead time where possible.
What are the top packing items for April?
Pack breathable clothing, a wide-brim hat, high-SPF sunscreen, a reusable water bottle, basic heat-relief supplies (cooling towel, electrolyte mixes) and a compact first-aid kit for minor heat issues. Also include lightweight insect repellent for evenings near waterways.