Siem Reap, Cambodia Weather

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

Current conditions

Updated:
23°C
73.4°F
°C °F

Condition: Slight Rain Showers

Pressure: 1,010 hPa

Feel like: 28 °C

Temperature: 23°C

Cloud: 98%

Humidity: 97%

Wind: ENE - 6 km/h

Visibility: 4.92 km

Weather forecast

Sun
20 Sep
23°C / 30°C
Moderate Rain Showers
Mon
21 Sep
23°C / 29°C
Slight Thunderstorm
Tue
22 Sep
24°C / 29°C
Slight Thunderstorm
Wed
23 Sep
24°C / 30°C
Slight Thunderstorm
Thu
24 Sep
23°C / 30°C
Slight Thunderstorm
Hourly forecast today:
20:00 PM
23° / 23°
23° / 23°
Slight Rain Showers
97% 12 km/h
21:00 PM
23° / 23°
23° / 23°
Drizzle
96% 11 km/h
22:00 PM
23° / 23°
23° / 23°
Drizzle
97% 9 km/h
23:00 PM
23° / 23°
23° / 23°
Overcast
98% 9 km/h
00:00 AM
23° / 24°
23° / 24°
Overcast
94% 11 km/h
01:00 AM
23° / 26°
23° / 26°
Overcast
86% 16 km/h
02:00 AM
24° / 27°
24° / 27°
Drizzle
81% 16 km/h
03:00 AM
24° / 28°
24° / 28°
Drizzle
79% 16 km/h
04:00 AM
24° / 29°
24° / 29°
Drizzle
72% 14 km/h
05:00 AM
24° / 27°
24° / 27°
Slight Rain Showers
83% 12 km/h
06:00 AM
25° / 27°
25° / 27°
Moderate Rain Showers
87% 19 km/h

30 Day Averages and Extremes

  • Average high 29.47°C
  • Average low 22.97°C
  • Hottest day 33°C (07 September 2026)
  • Coldest day 0°C (03 October 2026)
  • Average humidity 84.23%
  • Days with precipitation 30 days
  • Highest precipitation 90 mm (09 September 2026)

Yesterday's Data

  • Max: 32°C
  • Min: 25°C
  • Total Precipitation: 16 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 30ºC (86.0ºF), consider wearing:
- Sleeveless tops or vests
- Airy sandals or flip-flops
- Ultra-thin, breathable socks
- UV-blocking sunglasses

Temperature

Early
24°C / 30°C
Morning
26°C / 29°C
Afternoon
24°C / 25°C
Evening
23°C / 23°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 447
  • CO 207
  • NH3 0
  • NO2 1
  • O3 71
  • PM10 4
  • PM25 4
  • SO2 0
  • CH4 1,590

Sunrise / Sunset

22:53
11:02