The best times to visit Phnom Penh for ideal weather are

November 19th to June 3rd

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.


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Other Phnom Penh Travel Info

Weather in Phnom Penh

Temperature

Average temperatures in Phnom Penh vary very little. Considering humidity, temperatures feel hot all year with a low chance of precipitation most of the year. The area is less temperate than some — in the 25th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Phnom Penh, the hottest months are April, May, and then March. See average monthly temperatures below. The warmest time of year is generally mid April where highs are regularly around 95.5°F (35.3°C) with temperatures rarely dropping below 78.8°F (26°C) at night.

Phnom Penh Temperatures (Fahrenheit)

Key
High
Average
Low

Phnom Penh Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Phnom Penh Perceived Temperature (F)

Key
High
Average
Low

Phnom Penh Perceived Temperature (C)

Key
High
Average
Low

 

Average Phnom Penh Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan87.581.172.2
Feb9183.774
Mar93.786.677.2
Apr94.687.278.5
May94.786.979.2
Jun9385.778.4
Jul91.384.577.4
Aug91.684.477.3
Sep89.983.477
Oct89.283.577
Nov88.583.376.2
Dec87.881.973.6

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan30.827.322.3
Feb32.828.723.3
Mar34.330.325.1
Apr34.830.725.8
May34.830.526.2
Jun33.929.825.8
Jul32.929.225.2
Aug33.129.125.2
Sep32.228.625
Oct31.828.625
Nov31.428.524.6
Dec3127.723.1


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Phnom Penh are February, March, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late September with an average of 3 days of significant precipitation the week of September 24th.

When can you find snow in Phnom Penh? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Phnom Penh.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Phnom Penh (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan1%00.2
Feb0%00
Mar0%00
Apr5%01.3
May6%01.4
Jun11%01.9
Jul8%01
Aug20%05.5
Sep26%05.4
Oct17%03.1
Nov13%03.7
Dec2%00.5

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan100.5
Feb000
Mar000
Apr503.3
May603.6
Jun1104.8
Jul802.5
Aug20014
Sep26013.7
Oct1707.9
Nov1309.4
Dec201.3

 

Humidity and Wind

Phnom Penh has some very humid months, with other comfortably humid months. The least humid month is March (51.1% relative humidity), and the most humid month is September (70.8%).

Wind in Phnom Penh is usually calm. The windiest month is July, followed by June and August. July’s average wind speed of around 6.9 knots (7.9 MPH or 12.7 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid June where average top sustained speeds reach 16.2 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Phnom Penh.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan5.9Light breeze10.9Gentle breeze
Feb5.7Light breeze10.3Gentle breeze
Mar6.2Light breeze11.1Gentle breeze
Apr5.5Light breeze12.3Significant breeze
May5.7Light breeze14.3Gentle breeze
Jun6.6Light breeze15.6Significant breeze
Jul6.9Light breeze15.1Gentle breeze
Aug6.4Light breeze14.5Significant breeze
Sep5.5Light breeze13.4Gentle breeze
Oct4.6Light breeze11.2Significant breeze
Nov6Light breeze12Gentle breeze
Dec6.3Light breeze11.7Significant breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan54.4%
Feb53%
Mar51.1%
Apr56.2%
May60.4%
Jun62.8%
Jul64.6%
Aug66.1%
Sep70.8%
Oct70.1%
Nov64.9%
Dec56.9%

 

Is it Safe to Travel to Phnom Penh?

Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for Cambodia; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Phnom Penh, Cambodia is January, followed by July and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Phnom Penh in August. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 70.5 in August means 70.5% of the tourists vs. January.


Overall Phnom Penh Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel very warm. Highs range from 95.5°F (35.3°C) and 92.9°F (33.8°C) with similar temperatures in the later months. Rain is rare with 0 to 2 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 2 to 6 days of precipitation per month. June – August is fairly slow season for tourism in Phnom Penh, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 90.5°F (32.5°C) and 88°F (31.1°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 4 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is perfect this time of year in Phnom Penh to be enjoyable for warm weather travelers. The average high during this season is between 92.9°F (33.8°C) and 86.5°F (30.3°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the busiest with tourists.

 

Best Times to TravelCambodia › Phnom Penh, Cambodia


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