Cambodia Siem Reap Weather in March — Climate Guide
March in Siem Reap is high
March is high for Siem Reap.
March is the start of Siem Reap's hot-dry transition — Angkor temple conditions still excellent, rainfall still minimal (3 rainy days, 25mm), but heat climbs and UV index peaks at 11 (extreme). The week after Western spring break + before Khmer New Year (April 13-15) is the year's best value-for-quality window.
Avoid midday outdoor 11:00-15:00 — UV is intense and felt temperature hits 38°C. Schedule: pre-dawn Angkor sunrise + 6:00-10:00 temples → 10:00-16:00 hotel pool + spa + lunch → 16:30-18:30 sunset temples. Hotels with pools (Park Hyatt, Belmond, Sala Lodges) are mandatory.
Travel score
Hot-dry shoulder — pre-Songkran best value-for-quality window
March Weather at a Glance
March averages 35°C / 95°F highs and 23°C / 73°F dawns with 3 rainy days and 25mm rainfall. Humidity 55%, UV index climbs to 11 (extreme). Sunrise 6:20 AM, sunset 6:05 PM. The transition from peak dry to early shoulder pricing makes this the value-for-quality sweet spot.
March Travel Advice
Midday 11:00-15:00 indoors only — UV 11 burns in 15-20 minutes. Pool-equipped hotels are mandatory. Schedule sunrise + morning Angkor + pool afternoon + sunset evenings. Pre-book Cuisine Wat Damnak + Phare Circus 1 week ahead.
Flying In from Overseas
Spring shoulder season — Korean spring break + Western spring break partial overlap. Asia-Siem Reap fares $250-500. Australian autumn shoulder. Direct flights from Bangkok $30-80, Singapore $100-250.
March Pricing Trends
Shoulder pricing returns: Raffles $300-700/night, Park Hyatt $250-500, FCC Angkor $120-250, Onederz Hostel $10-25. Tonle Sap boat tour $20-30. Phare Circus $18-38 fixed. Best value-for-quality month of the year.
Siem Reap March Weather Stats
Avg High
35°C
Avg Low
23°C
Rainy Days
3
25mm total
Sunshine
9h
Daily avg
Humidity
55%
moderate
UV Index
11
Extreme
Wind
8 km/h
Gusts 18
Sea Temp
0°C
no swimming
Crowds
Busy
At attractions
March Sunrise & Sunset
Air Quality
PM2.5
32 μg/m³
PM10
52 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
38°C
Nighttime
24°C
Humidity and wind affect how the actual temperature feels.
Wind
8 km/h
Max gust 18 km/h
Activities Recommended for March
March Travel Pros & Cons
Pros
- Best value-for-quality window before April peak heat
- Still excellent Angkor visibility
- Hotels at 70-80% of February pricing
Cons
- Heat building (felt 38°C)
- UV index 11 — burns exposed skin in 15 min
- Crowds thin but still significant
March Events & Festivals
- Dry season hot transition
- Pre-Songkran shoulder window (best value-for-quality)
Siem Reap in March — Full Picture
March is the start of Siem Reap's hot-dry transition — Angkor temple conditions still excellent, rainfall still minimal (3 rainy days, 25mm), but heat climbs and UV index peaks at 11 (extreme). The week after Western spring break + before Khmer New Year (April 13-15) is the year's best value-for-quality window.
Avoid midday outdoor 11:00-15:00 — UV is intense and felt temperature hits 38°C. Schedule: pre-dawn Angkor sunrise + 6:00-10:00 temples → 10:00-16:00 hotel pool + spa + lunch → 16:30-18:30 sunset temples. Hotels with pools (Park Hyatt, Belmond, Sala Lodges) are mandatory.
What to Wear & What to Pack
Hot tropical — t-shirt, shorts, hat, sunglasses, SPF 50+. UV index 11 (extreme) — sunscreen every 2 hours. Quick-dry fabrics for sweat. 3L+ daily water.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current35.7°C
24.3°C
6.7/mo
Summer (Jun·Jul·Aug)
33.3°C
25°C
15/mo
Autumn (Sep·Oct·Nov)
31.7°C
23.3°C
13.7/mo
Winter (Dec·Jan·Feb)
32°C
21°C
1.3/mo
Siem Reap Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 32° | 21° | 1d·10mm | 9h | 60% | 10 | Very busy | Peak |
| February (Best) | 33° | 21° | 1d·5mm | 10h | 55% | 10 | Very busy | Peak |
| March (Best) | 35° | 23° | 3d·25mm | 9h | 55% | 11 | Busy | Shoulder |
| 37° | 25° | 4d·50mm | 9h | 60% | 11 | Moderate | Shoulder | |
| 35° | 25° | 13d·175mm | 7h | 75% | 11 | Quiet | Low season | |
| 34° | 25° | 14d·175mm | 6h | 80% | 11 | Moderate | Low season | |
| 33° | 25° | 15d·200mm | 6h | 80% | 10 | Moderate | Shoulder | |
| 33° | 25° | 16d·225mm | 6h | 80% | 10 | Moderate | Shoulder | |
| 32° | 24° | 18d·275mm | 5h | 85% | 10 | Quiet | Low season | |
| 32° | 24° | 16d·230mm | 6h | 80% | 9 | Moderate | Low season | |
| November (Best) | 31° | 22° | 7d·70mm | 7h | 70% | 9 | Busy | Shoulder |
| December (Best) | 31° | 21° | 2d·15mm | 9h | 60% | 9 | Very busy | Peak |
View Other Months
Siem Reap March Hotel Picks
Frequently Asked Questions
Is March a good time to visit Siem Reap?
Siem Reap in March is high. Tourist crowds are busy and flight/hotel prices are shoulder.
What's the average temperature in Siem Reap in March?
Siem Reap March averages a high of 35°C and a low of 23°C.
Does it rain much in Siem Reap in March?
Siem Reap March averages 25mm of rainfall over about 3 rainy days.
What should I wear in Siem Reap in March?
Hot tropical — t-shirt, shorts, hat, sunglasses, SPF 50+. UV index 11 (extreme) — sunscreen every 2 hours. Quick-dry fabrics for sweat. 3L+ daily water.
What time are sunrise and sunset in Siem Reap in March?
Siem Reap March sunrise is 06:20 and sunset is 18:05, with 11h 45min of daylight.
What's the air quality like in Siem Reap in March?
Siem Reap March air quality (AQI) averages 75, rated Moderate. PM2.5 averages 32μg/m³.
What activities are recommended in Siem Reap in March?
In March, Siem Reap is great for Angkor sunrise (cool dawn), Bayon morning, Ta Prohm morning.
Is March peak season in Siem Reap?
Siem Reap March crowds are busy and prices are shoulder. Advance reservations are strongly recommended.
Best Months to Visit Siem Reap
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.