Siem Reap in March

In March, Siem Reap averages 35°C (95°F) during the day and 23°C (73°F) at night, with only about 3 rainy days.

Shoulder

Conditions are very hot — early-morning and evening sightseeing recommended. Skies are generally dry and clear.

March in Siem Reap is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).

35°C
Avg high
23°C
Avg low
3
Rain days
30 mm
Rainfall

How March compares to the rest of the year in Siem Reap

1st
warmest month of the 12
9th
wettest month of the 12
2%
of yearly rainfall falls in March
12 h 2 min
daylight on the 15th

March is one of the warmest months in Siem Reap (1st of 12) and moderately rainy compared to the rest of the year (9th of 12). Daytime temperature runs 3°C above the annual average (33°C). March runs 2°C warmer than February (33°C) and stays flat into April.

March sunrise & sunset in Siem Reap

🌅
Sunrise (15th)
6:12 AM
🌇
Sunset (15th)
6:14 PM
Day length
12 h 2 min

Times shown for Siem Reap local time (Asia/Phnom_Penh), calculated for the 15th of March. They shift by a few minutes day to day across the month.

Photography light in Siem Reap — March

Golden-hour and blue-hour windows for the 15th of March, in Siem Reap's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
5:12 AM – 5:52 AM
🌄 Golden hour (AM)
5:52 AM – 6:52 AM
🌇 Golden hour (PM)
5:34 PM – 6:34 PM
🌆 Blue hour (PM)
6:34 PM – 7:14 PM
Milky Way galactic core
Fair
Core only briefly above the horizon — a marginal month even from dark sites near Siem Reap.

📅 When to book — Siem Reap in March

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on March's tier (Shoulder) and Siem Reap's popularity.

✈ Flights — lead time
6-10 weeks
Sweet spot for value. Major fare-sales (US: Black Friday, EU: post-Easter) hit hardest in shoulder months for shoulder travel.
🏨 Lodging — lead time
4-8 weeks
Lots of selection. Look for shoulder-season packages — many hotels add value (free breakfast, spa credit) to fill rooms.

Crowds & pricing — March in Siem Reap

Shoulder

Siem Reap is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.

Sun & mosquito risk — March in Siem Reap

☀️ UV Index (noon, 15th)
12.4
Extreme
Stay indoors during midday hours; SPF 50+ even briefly outside, UPF clothing, wide-brim hat, sunglasses essential.
🦟 Mosquito risk
●●●●○
High
Peak mosquito activity. DEET 30%+, long sleeves at dawn/dusk, sleep under nets if rural. Check current dengue/malaria advisories for the destination.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Siem Reap in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 32°C / 90°F 20°C / 68°F 5 mm 1 0
February 33°C / 91°F 21°C / 70°F 5 mm 1 0
March 35°C / 95°F 23°C / 73°F 30 mm 3 0
April 35°C / 95°F 25°C / 77°F 90 mm 7 0
May 34°C / 93°F 25°C / 77°F 170 mm 11 0
June 33°C / 91°F 25°C / 77°F 210 mm 15 0
July 32°C / 90°F 25°C / 77°F 200 mm 16 0
August 32°C / 90°F 25°C / 77°F 230 mm 18 0
September 31°C / 88°F 25°C / 77°F 275 mm 18 0
October 31°C / 88°F 24°C / 75°F 260 mm 15 0
November 31°C / 88°F 23°C / 73°F 135 mm 9 0
December 31°C / 88°F 21°C / 70°F 30 mm 3 0

Other cities with similar March weather

🌍 See the full ranked list of climate twins for Siem Reap in March →

Frequently asked questions

How hot is Siem Reap in March?

In March, Siem Reap averages a high of 35°C (95°F) and a low of 23°C (73°F) — generally hot.

Does it rain a lot in Siem Reap in March?

March is generally dry in Siem Reap, with about 3 rainy days on average.

Is March a good time to visit Siem Reap?

March is hot and mostly dry. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Siem Reap in March?

Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full March packing list for Siem Reap for a complete, climate-based checklist.

Open Siem Reap on the interactive map

Check the live 10-day forecast and sunrise/sunset.