Weather in Phnom Penh in January 2025
Average weather
Average temperature in Phnom Penh in January
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
| 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
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
How was the weather last January in Phnom Penh?
Climate Change Over the 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
Is January a good time to visit Phnom Penh?
Can you sunbathe in Phnom Penh in January?
Is Phnom Penh rainy in January?
Is it sunny in Phnom Penh in January?
Other cities in Cambodia
Monthly weather in Phnom Penh
Source of the data
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.