Siem Reap, Cambodia Weather

Siem Reap,  Weather
(Photo by martin bennie on Unsplash)

Current conditions

Updated:
29°C
84.2°F
°C °F

Condition: Slight Rain Showers

Pressure: 1,007 hPa

Feel like: 35 °C

Temperature: 29°C

Cloud: 75%

Humidity: 76%

Wind: SE - 7 km/h

Visibility: 7.18 km

Weather forecast

Wed
04 Nov
24°C / 31°C
Slight Thunderstorm
Thu
05 Nov
23°C / 31°C
Slight Thunderstorm
Fri
06 Nov
23°C / 31°C
Drizzle
Sat
07 Nov
23°C / 31°C
Drizzle
Sun
08 Nov
23°C / 32°C
Drizzle
Hourly forecast today:
09:00 AM
25° / 29°
25° / 29°
Slight Rain Showers
76% 18 km/h
10:00 AM
25° / 29°
25° / 29°
Drizzle
79% 15 km/h
11:00 AM
25° / 27°
25° / 27°
Overcast
89% 8 km/h
12:00 PM
25° / 26°
25° / 26°
Overcast
93% 12 km/h
13:00 PM
25° / 26°
25° / 26°
Slight Thunderstorm
93% 11 km/h
14:00 PM
24° / 25°
24° / 25°
Slight Thunderstorm
98% 12 km/h
15:00 PM
24° / 24°
24° / 24°
Moderate Drizzle
97% 7 km/h
16:00 PM
24° / 24°
24° / 24°
Drizzle
96% 7 km/h
17:00 PM
24° / 24°
24° / 24°
Overcast
96% 8 km/h
18:00 PM
24° / 24°
24° / 24°
Overcast
97% 9 km/h
19:00 PM
24° / 24°
24° / 24°
Overcast
97% 10 km/h

30 Day Averages and Extremes

  • Average high 30.97°C
  • Average low 23.67°C
  • Hottest day 32°C (21 October 2026)
  • Coldest day 22°C (10 November 2026)
  • Average humidity 83.97%
  • Days with precipitation 30 days
  • Highest precipitation 58 mm (20 October 2026)

Yesterday's Data

  • Max: 31°C
  • Min: 24°C
  • Total Precipitation: 6 mm

Temperature and possibility of rain in Siem Reap over the next 12 hours

Temperature and possibility of rain in Siem Reap in the coming days

Rainfall in Siem Reap in the coming days

Siem Reap Climate Summary

Siem Reap features a Tropical wet and dry or savanna (Köppen classification: Aw), with an average annual temperature of 29.43ºC (84.97ºF), which is about 0.46% higher than the national average for Cambodia. Annually, the city experiences approximately 116.39 millimeters (4.58 inches) of rainfall, spread across 195.81 rainy days, accounting for 53.65% of the year.

Longitude 13.3632533
Latitude 103.856403
Yearly high temperature 32.69ºC (90.84ºF)
Yearly low temperature 24.55ºC (76.19ºF)
Hottest month March 35.67ºC (96.21ºF)
Coldest month January 21.75ºC (71.15ºF)
Yearly precip 116.39mm (4.58in)
Days with rainfall 195.81 days (53.65%)
Driest month January (60.35%)
Wettest month September (80.96%)

Weather averages by month

Month High / Low (°C) Rain
January 31.69° / 21.75° 2.45 days
February 34.01° / 23.42° 3.27 days
March 35.67° / 25.89° 9.18 days
April 35.74° / 26.88° 16.0 days
May 34.77° / 26.74° 21.55 days
June 32.82° / 25.64° 24.36 days
July 31.71° / 24.88° 26.73 days
August 31.63° / 24.98° 25.27 days
September 31.35° / 24.97° 28.09 days
October 31.18° / 24.45° 23.09 days
November 31.22° / 23.51° 11.91 days
December 30.44° / 21.46° 3.91 days

Frequently asked questions

1. What is the hottest month in Siem Reap?

March has the highest average monthly temperature (daily mean of 35.67ºC) and January are the coolest (daily mean of 21.75ºC).

2. What should I wear in Siem Reap today?

For today's very hot weather in Siem Reap, with the high temperatures above 31ºC (87.8ºF), consider wearing:
- Airy sandals or flip-flops
- High SPF sunscreen for outdoor activities
- Light, natural fabrics (like cotton or linen)
- Lightweight, loose-fitting shorts

Temperature

Early
25°C / 30°C
Morning
25°C / 29°C
Afternoon
24°C / 24°C
Evening
24°C / 24°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 433
  • CO 241
  • NH3 0
  • NO2 0
  • O3 102
  • PM10 8
  • PM25 8
  • SO2 2
  • CH4 1,520

Sunrise / Sunset

22:59
10:36