Weather in Siem Reap in January 2025
- January is usually the driest month of the year in Siem Reap
Average weather
Average temperature in Siem Reap in January
Going from a maximum of +90°F during the day to a minimum of +63°F during the night, the temperature in January averages around +84°F.
The average maximum temperature goes up 7% by the end of the month, compared with the beginning of the month, from +82°F to +84°F.
Is Siem Reap warm or cold in January?
Siem Reap is typically hot in January.
Maximum temperatures go up compared to the previous month from +86°F to +88°F. The minimum temperature also goes up from +70°F to +72°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
January is one of the coolest months in Siem Reap, here is the comparison with other months:
Climate in Siem Reap in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +86°F | +88°F | +91°F | ||||
| Min. temperature | ||||||
| +55°F | +57°F | +59°F | ||||
| Max. temperature | ||||||
| +95°F | +97°F | +99°F | ||||
| Rainfall | ||||||
| 13 mm | 9 mm | 15 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 72% | 68% | 68% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 6 | 11 | 10 | ||||
| Cloudy days | ||||||
| 19 | 16 | 11 | ||||
| Rainy days | ||||||
| 6 | 5 | 8 | ||||
| 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 +86°F to +88°F during the day. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 13 mm to 9 mm. It feels drier, as humidity decreases from 72% to 68%. The average wind speed doesn’t change much during January, staying around 1 m/s. The good news is there are likely to be more sunny days in January, from 6 to 11.
February brings much the same weather, it remains great.
Wind
The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Siem Reap is gradually decreasing during January, going from 2 m/s to 1 m/s over the course of the month.
Rain
How was the weather last January in Siem Reap?
Climate Change Over the Years
The climate in Siem Reap in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1999 (+88°F) and the highest in 2015 (+92°F). The driest year was 2015 with only 880 mm of rainfall, and the wettest year was 1999 with 1854 mm.
FAQ
Is January a good time to visit Siem Reap?
Can you sunbathe in Siem Reap in January?
Is Siem Reap rainy in January?
Is it sunny in Siem Reap in January?
Other cities in Cambodia
Monthly weather in Siem Reap
Source of the data
For this page, we’ve looked at the typical weather in Siem Reap, 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.