Siem Reap, Cambodia Weather

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

Current conditions

Updated:
31°C
87.8°F
°C °F

Condition: Drizzle

Pressure: 1,007 hPa

Feel like: 36 °C

Temperature: 31°C

Cloud: 100%

Humidity: 68%

Wind: W - 14 km/h

Visibility: 34.66 km

Weather forecast

Wed
05 Aug
24°C / 32°C
Slight Thunderstorm
Thu
06 Aug
25°C / 30°C
Drizzle Dense Intensity
Fri
07 Aug
25°C / 32°C
Slight Thunderstorm
Sat
08 Aug
25°C / 28°C
Moderate Drizzle
Sun
09 Aug
25°C / 30°C
Drizzle
Hourly forecast today:
05:00 AM
24° / 31°
24° / 31°
Drizzle
68% 33 km/h
06:00 AM
24° / 31°
24° / 31°
Overcast
64% 34 km/h
07:00 AM
24° / 28°
24° / 28°
Moderate Drizzle
79% 36 km/h
08:00 AM
25° / 26°
25° / 26°
Moderate Rain Showers
90% 31 km/h
09:00 AM
25° / 26°
25° / 26°
Drizzle
89% 10 km/h
10:00 AM
25° / 27°
25° / 27°
Overcast
87% 10 km/h
11:00 AM
25° / 27°
25° / 27°
Overcast
90% 10 km/h
12:00 PM
25° / 26°
25° / 26°
Overcast
93% 9 km/h
13:00 PM
25° / 27°
25° / 27°
Overcast
92% 10 km/h
14:00 PM
25° / 27°
25° / 27°
Overcast
91% 10 km/h
15:00 PM
24° / 27°
24° / 27°
Overcast
85% 10 km/h

30 Day Averages and Extremes

  • Average high 30.5°C
  • Average low 24.07°C
  • Hottest day 34°C (19 July 2026)
  • Coldest day 0°C (17 August 2026)
  • Average humidity 77.43%
  • Days with precipitation 30 days
  • Highest precipitation 77 mm (29 July 2026)

Yesterday's Data

  • Max: 31°C
  • Min: 25°C
  • Total Precipitation: 5 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 32ºC (89.6ºF), consider wearing:
- Lightweight, loose-fitting shorts
- Broad-brimmed sun hat
- Light, natural fabrics (like cotton or linen)
- UV-blocking sunglasses

Temperature

Early
24°C / 29°C
Morning
25°C / 26°C
Afternoon
24°C / 27°C
Evening
24°C / 26°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 426
  • CO 164
  • NH3 0
  • NO2 0
  • O3 73
  • PM10 6
  • PM25 4
  • SO2 0
  • CH4 1,364

Sunrise / Sunset

22:50
11:30