Kompong Thom

Cambodia Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Cambodia in December.

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Siem Reap Phnom Penh Sihanoukville Kampot

Planning a getaway to Cambodia this December and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Cambodia in December

December in Cambodia generally has temperatures that range from warm to very warm, with precipitation levels ranging from low to moderate.

Temperatures

The average maximum daytime temperatures vary from warm in Sen Monorom at 29°C (84°F) to very warm in Banlung at 33°C (91°F). Nighttime temperatures generally drop to 22°C (72°F) in Banlung and 20°C (68°F) in Sen Monorom. On average, December is the month with the lowest temperatures of the year in Siem Reap.

To explore the conditions in Cambodia in more detail, check the map below.

Precipitation

In December, precipitation varies across different areas. From low rainfall in Poipet with an average of 7.9 mm (0.3 in) to moderate rainfall in Bavet with 50 mm (2 in).

Explore Cambodia by month

Pick a month to see the average temperature, rainfall and sunshine in Cambodia - and find the best time to visit. (based on Siem Reap)

January33°C (91°F) February34°C (93°F) March36°C (97°F) April36°C (97°F) May35°C (95°F) June34°C (93°F) This monthJuly33°C (91°F) August33°C (91°F) September33°C (91°F) October32°C (90°F) November32°C (90°F) December32°C (90°F)
Best Time to Visit Cambodia →

Best Places to Visit in Cambodia in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Cambodia.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Cambodia

What is the weather like in December for some of the most popular destinations in Cambodia?

Temperature range in Cambodia (December)

Precipitation variation in Cambodia (December)

Siem Reap

In December Siem Reap generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 22°C (72°F) and low monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
32°C (90°F)
32°C (90°F)
33°C (91°F)
Min temperature
24°C (75°F)
22°C (72°F)
22°C (72°F)
Monthly rainfall
66 mm (2.6 in)
17 mm (0.7 in)
9.8 mm (0.4 in)
Monthly rainy days
6 days
2 days
a single day
Weather conditions
very good
excellent
excellent
Climate in Siem Reap →

Phnom Penh

In December Phnom Penh generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 23°C (73°F) and low monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
33°C (91°F)
33°C (91°F)
34°C (93°F)
Min temperature
24°C (75°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
215 hours
244 hours
258 hours
Monthly rainfall
82 mm (3.2 in)
29 mm (1.1 in)
17 mm (0.7 in)
Monthly rainy days
9 days
4 days
a single day
Weather conditions
very good
excellent
very good
Climate in Phnom Penh →

Sihanoukville

In December Sihanoukville generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and moderate monthly rainfall. So on average the conditions are very good that month.

« November
December
January »
November
December
January
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
230 hours
260 hours
270 hours
Monthly rainfall
100 mm (3.9 in)
43 mm (1.7 in)
39 mm (1.5 in)
Monthly rainy days
13 days
8 days
5 days
Weather conditions
good
very good
very good
Climate in Sihanoukville →

Kampot

In December Kampot generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are very good that month.

« November
December
January »
November
December
January
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
24°C (75°F)
24°C (75°F)
23°C (73°F)
Monthly sun hours
230 hours
260 hours
270 hours
Monthly rainfall
97 mm (3.8 in)
41 mm (1.6 in)
33 mm (1.3 in)
Monthly rainy days
13 days
8 days
5 days
Weather conditions
very good
very good
very good
Climate in Kampot →

Battambang

In December Battambang generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 22°C (72°F) and low monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
33°C (91°F)
33°C (91°F)
34°C (93°F)
Min temperature
24°C (75°F)
22°C (72°F)
22°C (72°F)
Monthly rainfall
57 mm (2.2 in)
15 mm (0.6 in)
14 mm (0.6 in)
Monthly rainy days
7 days
3 days
a single day
Weather conditions
very good
excellent
very good
Climate in Battambang →

Is your destination not in the list? Have a look at all destinations in Cambodia.

In our records: Cambodia December extremes

Notable December records observed across cities in Cambodia in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest December night in Cambodia dropped to 12°C (54°F) in Banteay Chhmar on December 26, 1999.

Popular cities in December

Day & night temperatures, rainfall and average weather in Cambodia in December.

City Weather Day temp Night temp Rainfall
Siem Reap 32°C (90°F) 22°C (72°F) 17 mm (0.7 in)
Phnom Penh 33°C (91°F) 23°C (73°F) 29 mm (1.1 in)
Sihanoukville 30°C (86°F) 26°C (79°F) 43 mm (1.7 in)
Kampot 31°C (88°F) 24°C (75°F) 41 mm (1.6 in)
Sen Monorom 29°C (84°F) 20°C (68°F) 34 mm (1.3 in)
Banlung 33°C (91°F) 22°C (72°F) 19 mm (0.7 in)

Cambodia weather in December: frequently asked questions

What is the weather like in Cambodia in December?

Cambodia typically experiences very good weather in December, part of the season. Daytime highs in Siem Reap average around 32°C (90°F), and temperatures drop to about 22°C (72°F) at night.

What is the average temperature in Cambodia in December?

Daytime temperatures in Siem Reap peak at roughly 32°C (90°F) in December, dropping to about 22°C (72°F) overnight.

Does Cambodia get a lot of rain in December?

Not particularly. Siem Reap averages just 17 mm (0.7 in) of rain in December, making it a mostly dry month for Cambodia.

Is December a Good Time to Visit Cambodia?

We believe that December is one of the best times to visit Cambodia with overall excellent weather in Siem Reap.

Generally speaking, the best visiting conditions can be found in December offering mostly very good weather in Siem Reap. On the other hand, the weather in February, March, April, May, June, July, August, September and October tend to be less favorable.

Interested in more climate information?

We have much more information about the climate in Cambodia.

Weather and climate has detailed information for every country in the world. Are you going to Cambodia? Get detailed historical weather averages for many cities in Cambodia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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