January is an ideal time to visit Phnom Penh if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +90°F and about 8 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 15 mm of precipitation over an average of 6 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flightsin one click on Avionero.
Average weather
☀️
+90°F
Avg. max. temperature
+61°F
Min.
+97°F
Max.
15 mm
Total precipitation
67%
Avg. humidity
1 m/s
Avg. wind
8 ☀️
Sunny Days
17 ⛅️
Cloudy
6 🌦
Rainy
Our opinion: Phnom Penh has great weather in January.
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Average temperature in Phnom Penh in January
Here are the expected maximum, average and minimum temperatures in Phnom Penh for January based on the historical data.
Last Year
Historical Data
Going from a maximum of +91°F during the day to a minimum of +70°F during the night, the temperature in January averages around +86°F.
The average maximum temperature goes up 17% by the end of the month, compared with the beginning of the month, from +82°F to +86°F.
Is Phnom Penh warm or cold in January?
Phnom Penh is typically hot in January.
Maximum temperatures go up compared to the previous month from +88°F to +90°F. The minimum temperature also goes up from +73°F to +73°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how January is compared to other months in Phnom Penh:
Climate in Phnom Penh in January
Phnom Penh weather looks like this, on average, in January and the surrounding months.
December
January
February
Avg. temperature
+88°F
+90°F
+91°F
Min. temperature
+59°F
+61°F
+66°F
Max. temperature
+95°F
+97°F
+99°F
Rainfall
24 mm
15 mm
12 mm
Wind
2 m/s
1 m/s
2 m/s
Humidity
70%
67%
65%
Air pressure
1011 HPa
1011 HPa
1010 HPa
Sunny days
6
8
9
Cloudy days
18
17
13
Rainy days
7
6
5
Snowy days
0
0
0
January often has better weather than December.It’s getting warmer as January arrives. The average maximum temperature goes up from +88°F to +90°F during the day.As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 24 mm to 15 mm.It feels drier, as humidity decreases from 70% to 67%.Winds are calmer in comparison to December, going down from 2 m/s to 1 m/s on average.The good news is there are likely to be more sunny days in January, from 6 to 8.
Next month (February) brings a further decline in the weather.
Wind speed in Phnom Penh in January based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Phnom Penh is gradually decreasing during January, going from 4 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during January in Phnom Penh based on historical data.
Last Year
Historical Data
Typically, there is a 26% chance of rain on an average day in January, with total rainfall of approximately 131 mm. The maximum amount of rainfall per day is around 67 mm, which is considered heavy rain.On average, there are about 8 rainy days during January, so prepare to bring an umbrella.
Here’s how January is compared with other months in the amount of precipitation, total mm:
Phnom Penh wettest month is October, where a typical day has a 74% chance of precipitation and 242 mm of rainfall per day. February, on the other hand, is the driest month with a mere 17% chance of precipitation and 12 mm of rainfall per day.
How was the weather last January in Phnom Penh?
This is the weather in Phnom Penh in January 2023:
1 January
☁️
+83°F
2 January
☀️
+83°F
3 January
☀️
+88°F
4 January
☁️
+86°F
5 January
☁️
+85°F
6 January
🌧️
+81°F
7 January
🌧️
+77°F
8 January
☁️
+81°F
9 January
☁️
+86°F
10 January
🌧️
+82°F
11 January
🌧️
+84°F
12 January
☁️
+85°F
13 January
☁️
+88°F
14 January
☁️
+91°F
15 January
☀️
+90°F
16 January
☁️
+90°F
17 January
☀️
+88°F
18 January
☁️
+87°F
19 January
☁️
+87°F
20 January
☁️
+87°F
21 January
☀️
+88°F
22 January
☀️
+88°F
23 January
☀️
+91°F
24 January
☁️
+92°F
25 January
☀️
+83°F
26 January
☀️
+86°F
27 January
☁️
+90°F
28 January
☀️
+84°F
29 January
☀️
+83°F
30 January
☀️
+79°F
31 January
☀️
+87°F
In January 2023 Phnom Penh had 13 sunny days, 14 cloudy days, and 4 rainy days. The average maximum temperature was +86°F, with an absolute maximum of +91°F and a minimum of +77°F. The average humidity was 71%, with a maximum of 100% and a minimum of 44%. The average wind speed was 3 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in January?
Climate Change Over the Years
This is how Phnom Penh climate has changed over the last 43 years.
The climate in Phnom Penh in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1999 (+89°F) and the highest in 2015 (+94°F). The driest year was 2015 with only 964 mm of rainfall, and the wettest year was 2022 with 1761 mm.
FAQ
Frequently asked questions about the weather in Phnom Penh in January:
Is January a good time to visit Phnom Penh?
Yes, January is a great time to go to Phnom Penh, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Phnom Penh.
Can you sunbathe in Phnom Penh in January?
Absolutely, January is hot in Phnom Penh. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.
Is Phnom Penh rainy in January?
Phnom Penh is usually dry in January. Plan your packing around outdoor activities and exploring.
Is it sunny in Phnom Penh in January?
Usually, it’s not very sunny in Phnom Penh in January, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in Cambodia
Check out the weather for other cities in Cambodia.
For this page, we’ve looked at the typical weather in Phnom Penh, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
