Phnom Penh, Cambodia Weather

Cambodia 🇰🇭 · Local time 01:01
82°
Overcast Feels like 86° · High 93° / Low 81°
Wind
14 mph
Humidity
66%
0 Low
Updated 1 hour ago

Phnom Penh hourly forecast: next 24 hours

Today's high of 93°F (34°C) is about 3°F (2°C) above the typical August high of 90°F (32°C).

Now
15%
2 AM
16%
3 AM
16%
4 AM
16%
5 AM
17%
5:50 AM
Sunrise
6 AM
17%
7 AM
16%
8 AM
16%
9 AM
37%
10 AM
15%
11 AM
29%
12 PM
1 PM
21%
2 PM
3 PM
4 PM
5 PM
6 PM
15%
6:13 PM
Sunset
7 PM
17%
8 PM
18%
9 PM
19%
10 PM
19%
11 PM
18%
12 AM
17%

Full Phnom Penh hourly forecast →

Current conditions in detail

Feels like
86°
Wind
14 mph
WSW · gusts 29 mph
Humidity
66%
Pressure
29.79 in
Visibility
6 mi
Precipitation
0.0 in
49% chance today

Phnom Penh weather tomorrow (Friday, August 28)

Tomorrow in Phnom Penh looks overcast, with a high of 91° and an overnight low of 79°. There is a 61% chance of rain - plan accordingly. Winds top out near 23 mph, and the UV index reaches 10 (very high).

High / Low
91° / 79°
Precipitation
61%
Sunrise / sunset
05:50 AM / 06:12 PM

See the full Phnom Penh 14-day forecast →

Phnom Penh 14-day forecast

Today
Overcast
High 93° Low 81°
Chance of precipitation: 49%
Fri, Aug 28 Friday
Overcast
High 91° Low 79°
Chance of precipitation: 61%
Sat, Aug 29 Saturday
Overcast
High 87° Low 79°
Chance of precipitation: 73%
Sun, Aug 30 Sunday
Patchy rain nearby
High 86° Low 77°
Chance of precipitation: 81%
Mon, Aug 31 Monday
Patchy rain nearby
High 82° Low 76°
Chance of precipitation: 63%
Tue, Sep 1 Tuesday
Patchy rain nearby
High 81° Low 76°
Chance of precipitation: 75%
Wed, Sep 2 Wednesday
Overcast
High 87° Low 76°
Chance of precipitation: 61%
Thu, Sep 3 Thursday
Overcast
High 89° Low 78°
Chance of precipitation: 31%
Fri, Sep 4 Friday
Overcast
High 90° Low 80°
Chance of precipitation: 59%
Sat, Sep 5 Saturday
Patchy rain nearby
High 94° Low 79°
Chance of precipitation: 43%
Sun, Sep 6 Sunday
Overcast
High 95° Low 78°
Chance of precipitation: 22%
Mon, Sep 7 Monday
Overcast
High 93° Low 80°
Chance of precipitation: 13%
Tue, Sep 8 Tuesday
Overcast
High 97° Low 80°
Chance of precipitation: 68%
Wed, Sep 9 Wednesday
Patchy rain nearby
High 95° Low 80°
Chance of precipitation: 68%

About the weather in Phnom Penh

Temperature barely moves in Phnom Penh - 3°C between the average April and the average December. Rainfall does the work instead: 12.0 inches (306 mm) in October against 14 mm (0.6 in) in February.

Phnom Penh weather: quick facts

  • Hottest month: April - highs near 94°F (35°C)
  • Coldest month: December - highs near 87°F (30°C)
  • Decade extremes (2015-2024): 103°F (39°C) high · 65°F (18°C) low
  • Wettest month: October (25 rainy days) · Sunniest: March (11.4 h sun/day)
  • Climate type: tropical wet-and-dry
  • Annual swing: 3°C between the average warmest and coolest month · day to night: 7°C
  • Months averaging 30°C or hotter: 12
  • Average humidity: 75%

Temperatures through the year

Average highs hold at or above 30°C for 12 months of the year, January through December being the unbroken run. December is the coolest month, with highs of 87°F (30°C) and lows near 74°F (23°C). April is the warm end of the year, averaging 94°F (35°C) by day and 79°F (26°C) overnight. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 103°F (39°C) and the lowest daily minimum 65°F (18°C). The wettest month is October (12.0 inches (306 mm) across 25 days) and the driest February.

Rain, sun and snow

Between the average April and the average December lie 3°C, a narrower spread than all but 9% of the 3496 cities in our dataset.

Season by season

March through May

Through March through May, Phnom Penh brings serious heat: 94°F (34°C) by day, 79°F (26°C) after dark, and rain falls on around 43 of the 90 days. Daylight is generous - around 10.9 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.

June through August

June through August is hot here - highs near 90°F (32°C), nights near 78°F (25°C), and rain falls on around 74 of the 90 days.

September through November

September through November in Phnom Penh is hot, with daytime highs averaging 87°F (31°C) and nights around 76°F (24°C); rain falls on around 69 of the 90 days.

December through February

December through February in Phnom Penh brings hot afternoons, with daytime highs averaging 89°F (32°C) and nights around 74°F (23°C); rain comes on about 13 days over the three months. Daylight is generous - around 10.4 hours of sun a day.

Average temperatures in Phnom Penh by month

Monthly averages for Phnom Penh based on 2015–2024 weather data.
MonthHighLow Rain daysPrecipitation SunshineHumidity
January 89° 74° 4 0.7 in 10.4 h/day 67%
February 91° 74° 2 0.6 in 11.0 h/day 62%
March 94° 77° 5 1.5 in 11.4 h/day 63%
April 94° 79° 14 3.7 in 11.2 h/day 69%
May 92° 80° 25 7.0 in 10.1 h/day 77%
June 90° 78° 24 6.4 in 9.3 h/day 79%
July 89° 78° 24 7.4 in 8.4 h/day 80%
August 90° 78° 26 8.2 in 9.0 h/day 80%
September 88° 77° 28 11.7 in 8.0 h/day 85%
October 87° 76° 25 12.0 in 8.7 h/day 85%
November 87° 76° 16 6.0 in 9.8 h/day 80%
December 87° 74° 7 1.6 in 9.9 h/day 72%

Explore Phnom Penh's full climate guide →

Common questions

Which month is wettest in Phnom Penh?
October, at 12.0 inches (306 mm) over about 25 days. February is the driest month, at 14 mm (0.6 in).
Which month is warmest in Phnom Penh?
April, averaging 94°F (35°C) by day and 79°F (26°C) overnight. The hottest single day in our 2015-2024 record for this location reached 103°F (39°C).
When is Phnom Penh at its coldest?
December, with highs of 87°F (30°C) and lows near 74°F (23°C). The coldest day in the 2015-2024 record fell to 65°F (18°C).
Which months are driest in Phnom Penh?
2 months average under 20 mm of rain, with February the driest at 14 mm (0.6 in).
Is Phnom Penh warmer or cooler than most cities?
Its 82°F (28°C) annual average is warmer than 99% of the 3496 cities in our dataset, which are all measured on the same 2015-2024 basis.
What is the best time to visit Phnom Penh?
The best time to visit Phnom Penh is generally November to February, when humidity and rainfall are at their lowest, which is what actually varies here. Daytime temperatures in that window sit near 88°F (31°C), with rain on about 7 days a month. For the same question asked the other way round, see where else is warm in November.
Does Phnom Penh have seasons?
Barely, by temperature: only 3°C separates the average warmest month from the average coolest. What changes instead is rainfall - October against February.
Does it snow in Phnom Penh?
Effectively no. The 2015-2024 record for Phnom Penh shows no regular measurable snowfall.