Phnom Penh, Cambodia Weather

Phnom Penh,  Weather
(Photo by SCREEN POST on Unsplash)

Current conditions

Updated:
32°C
89.6°F
°C °F

Condition: Overcast

Pressure: 1,003 hPa

Feel like: 37 °C

Temperature: 32°C

Cloud: 85%

Humidity: 63%

Wind: SW - 10 km/h

Visibility: 35.28 km

Weather forecast

Thu
06 Aug
25°C / 32°C
Drizzle
Fri
07 Aug
24°C / 31°C
Drizzle
Sat
08 Aug
25°C / 31°C
Moderate Drizzle
Sun
09 Aug
25°C / 31°C
Drizzle
Mon
10 Aug
25°C / 28°C
Drizzle
Hourly forecast today:
08:00 AM
24° / 32°
24° / 32°
Overcast
63% 30 km/h
09:00 AM
24° / 31°
24° / 31°
Overcast
64% 29 km/h
10:00 AM
25° / 28°
25° / 28°
Slight Thunderstorm
83% 24 km/h
11:00 AM
26° / 27°
26° / 27°
Drizzle Dense Intensity
90% 12 km/h
12:00 PM
25° / 27°
25° / 27°
Overcast
92% 12 km/h
13:00 PM
25° / 27°
25° / 27°
Overcast
89% 11 km/h
14:00 PM
25° / 27°
25° / 27°
Overcast
87% 20 km/h
15:00 PM
25° / 27°
25° / 27°
Overcast
87% 20 km/h
16:00 PM
24° / 27°
24° / 27°
Overcast
87% 21 km/h
17:00 PM
24° / 26°
24° / 26°
Mainly Clear
89% 18 km/h
18:00 PM
24° / 26°
24° / 26°
Overcast
89% 18 km/h

30 Day Averages and Extremes

  • Average high 30.27°C
  • Average low 24.27°C
  • Hottest day 35°C (21 July 2026)
  • Coldest day 0°C (19 August 2026)
  • Average humidity 76.8%
  • Days with precipitation 30 days
  • Highest precipitation 71 mm (28 July 2026)

Yesterday's Data

  • Max: 32°C
  • Min: 25°C
  • Total Precipitation: 5 mm

Temperature and possibility of rain in Phnom Penh over the next 12 hours

Temperature and possibility of rain in Phnom Penh in the coming days

Rainfall in Phnom Penh in the coming days

Phnom Penh Climate Summary

Phnom Penh features a Tropical monsoon (Köppen classification: Am), with an average annual temperature of 29.79ºC (85.62ºF), which is about 0.82% higher than the national average for Cambodia. Annually, the city experiences approximately 89.7 millimeters (3.53 inches) of rainfall, spread across 176.36 rainy days, accounting for 48.32% of the year.

Longitude 11.5563738
Latitude 104.9282099
Yearly high temperature 33.2ºC (91.76ºF)
Yearly low temperature 24.59ºC (76.26ºF)
Hottest month March 36.23ºC (97.21ºF)
Coldest month January 22.34ºC (72.21ºF)
Yearly precip 89.7mm (3.53in)
Days with rainfall 176.36 days (48.32%)
Driest month February (55.62%)
Wettest month September (77.68%)

Weather averages by month

Month High / Low (°C) Rain
January 32.42° / 22.34° 4.45 days
February 34.64° / 23.28° 2.91 days
March 36.23° / 25.57° 7.64 days
April 35.57° / 26.57° 16.09 days
May 35.1° / 26.61° 19.36 days
June 33.31° / 25.44° 18.91 days
July 32.57° / 24.83° 19.27 days
August 32.87° / 25.05° 19.36 days
September 32.21° / 25.06° 24.64 days
October 31.48° / 24.55° 23.18 days
November 31.26° / 23.62° 14.55 days
December 30.74° / 22.22° 6.0 days

Frequently asked questions

1. What is the hottest month in Phnom Penh?

March has the highest average monthly temperature (daily mean of 36.23ºC) and January are the coolest (daily mean of 22.34ºC).

2. What should I wear in Phnom Penh today?

For today's very hot weather in Phnom Penh, with the high temperatures above 31ºC (87.8ºF), consider wearing:
- Light, natural fabrics (like cotton or linen)
- High SPF sunscreen for outdoor activities
- UV-blocking sunglasses
- Ultra-thin, breathable socks

Temperature

Early
24°C / 29°C
Morning
24°C / 31°C
Afternoon
25°C / 27°C
Evening
23°C / 25°C

Air quality

Moderate

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

  • CO2 439
  • CO 222
  • NH3 0
  • NO2 1
  • O3 93
  • PM10 8
  • PM25 8
  • SO2 3
  • CH4 1,383

Sunrise / Sunset

22:48
11:23