Weather in Siem Reap in October 2025
- October is usually the wettest month of the year in Siem Reap;
Average weather
Average temperature in Siem Reap in October
Going from a maximum of +93°F during the day to a minimum of +77°F during the night, the temperature in October averages around +90°F.
The average maximum temperature goes down 11% by the end of the month, compared with the beginning of the month, from +91°F to +90°F.
Is Siem Reap warm or cold in October?
Siem Reap is typically hot in October.
Maximum temperatures go up compared to the previous month from +88°F to +88°F. The minimum temperature also goes up from +77°F to +77°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how October is compared to other months in Siem Reap:
Climate in Siem Reap in October
| September | October | November | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +88°F | +88°F | +88°F | ||||
| Min. temperature | ||||||
| +72°F | +66°F | +61°F | ||||
| Max. temperature | ||||||
| +97°F | +93°F | +95°F | ||||
| Rainfall | ||||||
| 253 mm | 232 mm | 76 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 83% | 83% | 78% | ||||
| Air pressure | ||||||
| 1007 HPa | 1009 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 3 | ||||
| Cloudy days | ||||||
| 1 | 4 | 10 | ||||
| Rainy days | ||||||
| 28 | 26 | 17 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
October weather is still as ok as in September. The temperature levels stay the same in the area of +88°F for average maximum temperature during the day. As October arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 253 mm to 232 mm. Humidity levels don’t change as the month goes on, averaging around 83%. The average wind speed doesn’t change much during October, staying around 1 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
November brings much the same weather, it remains ok.
Wind
The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Siem Reap is gradually decreasing during October, going from 3 m/s to 1 m/s over the course of the month.
Rain
How was the weather last October in Siem Reap?
Climate Change Over the Years
The climate in Siem Reap in October 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 October a good time to visit Siem Reap?
Can you sunbathe in Siem Reap in October?
Is Siem Reap rainy in October?
Is it sunny in Siem Reap in October?
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.