Phnom Penh, Cambodia Weather

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

Current conditions

Updated:
31°C
87.8°F
°C °F

Condition: Moderate Drizzle

Pressure: 1,009 hPa

Feel like: 38 °C

Temperature: 31°C

Cloud: 93%

Humidity: 65%

Wind: NNE - 7 km/h

Visibility: 4.92 km

Weather forecast

Fri
16 Oct
24°C / 32°C
Slight Thunderstorm
Sat
17 Oct
24°C / 31°C
Slight Rain Showers
Sun
18 Oct
23°C / 31°C
Slight Thunderstorm
Mon
19 Oct
24°C / 30°C
Slight Thunderstorm
Tue
20 Oct
24°C / 32°C
Drizzle Dense Intensity
Hourly forecast today:
05:00 AM
24° / 31°
24° / 31°
Moderate Drizzle
65% 20 km/h
06:00 AM
24° / 32°
24° / 32°
Drizzle
64% 20 km/h
07:00 AM
24° / 31°
24° / 31°
Overcast
63% 18 km/h
08:00 AM
25° / 29°
25° / 29°
Moderate Drizzle
78% 24 km/h
09:00 AM
24° / 26°
24° / 26°
Moderate Rain Showers
91% 30 km/h
10:00 AM
24° / 25°
24° / 25°
Moderate Rain Showers
93% 23 km/h
11:00 AM
25° / 25°
25° / 25°
Drizzle
95% 16 km/h
12:00 PM
24° / 25°
24° / 25°
Overcast
95% 20 km/h
13:00 PM
24° / 25°
24° / 25°
Overcast
95% 7 km/h
14:00 PM
24° / 25°
24° / 25°
Overcast
96% 12 km/h
15:00 PM
24° / 25°
24° / 25°
Overcast
94% 13 km/h

30 Day Averages and Extremes

  • Average high 30.43°C
  • Average low 23.47°C
  • Hottest day 33°C (30 September 2026)
  • Coldest day 0°C (28 October 2026)
  • Average humidity 81.23%
  • Days with precipitation 30 days
  • Highest precipitation 76 mm (05 October 2026)

Yesterday's Data

  • Max: 32°C
  • Min: 25°C
  • Total Precipitation: 7 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:
- Airy sandals or flip-flops
- Ultra-thin, breathable socks
- Sleeveless tops or vests
- High SPF sunscreen for outdoor activities

Temperature

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

Air quality

Moderate

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

  • CO2 446
  • CO 337
  • NH3 0
  • NO2 1
  • O3 86
  • PM10 6
  • PM25 5
  • SO2 3
  • CH4 1,529

Sunrise / Sunset

22:49
10:41