Weather in Phnom Penh in December 2024
Average weather
Average temperature in Phnom Penh in December
Going from a maximum of +93°F during the day to a minimum of +72°F during the night, the temperature in December averages around +90°F.
The average maximum temperature goes up 8% by the end of the month, compared with the beginning of the month, from +91°F to +93°F.
Is Phnom Penh warm or cold in December?
Phnom Penh is typically hot in December.
Maximum temperatures go up compared to the previous month from +88°F to +88°F. The minimum temperature also goes down from +75°F to +73°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
December is one of the coolest months in Phnom Penh, here is the comparison with other months:
Climate in Phnom Penh in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +88°F | +88°F | +90°F | ||||
| Min. temperature | ||||||
| +64°F | +59°F | +61°F | ||||
| Max. temperature | ||||||
| +95°F | +95°F | +97°F | ||||
| Rainfall | ||||||
| 97 mm | 24 mm | 15 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 1 m/s | ||||
| Humidity | ||||||
| 77% | 70% | 67% | ||||
| Air pressure | ||||||
| 1009 HPa | 1011 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 3 | 6 | 8 | ||||
| Cloudy days | ||||||
| 9 | 18 | 17 | ||||
| Rainy days | ||||||
| 16 | 7 | 6 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December often has better weather than November. The temperature levels stay the same in the area of +88°F for average maximum temperature during the day. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 97 mm to 24 mm. It feels drier, as humidity decreases from 77% to 70%. The average wind speed doesn’t change much during December, staying around 2 m/s. The good news is there are likely to be more sunny days in December, from 3 to 6.
But maybe it is worth considering traveling in January as the weather gets better.
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 December, going from 4 m/s to 2 m/s over the course of the month.
Rain
How was the weather last December in Phnom Penh?
Climate Change Over the Years
The climate in Phnom Penh in December 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 December a good time to visit Phnom Penh?
Can you sunbathe in Phnom Penh in December?
Is Phnom Penh rainy in December?
Is it sunny in Phnom Penh in December?
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.