Weather in Siem Reap in July 2025
Average weather
Average temperature in Siem Reap in July
Going from a maximum of +95°F during the day to a minimum of +77°F during the night, the temperature in July averages around +90°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +88°F to +88°F.
Is Siem Reap warm or cold in July?
Siem Reap is typically hot in July.
Maximum temperatures go down compared to the previous month from +91°F to +90°F. The minimum temperature also goes up from +79°F to +79°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how July is compared to other months in Siem Reap:
Climate in Siem Reap in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +91°F | +90°F | +90°F | ||||
| Min. temperature | ||||||
| +75°F | +73°F | +75°F | ||||
| Max. temperature | ||||||
| +100°F | +100°F | +97°F | ||||
| Rainfall | ||||||
| 129 mm | 138 mm | 155 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 77% | 78% | 79% | ||||
| Air pressure | ||||||
| 1006 HPa | 1006 HPa | 1006 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 3 | 2 | 2 | ||||
| Rainy days | ||||||
| 26 | 28 | 28 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as ok as in June. It’s getting colder in July. From +91°F in the day, the average maximum temperature lowers to +90°F. Prepare for more rain. Average rainfall goes from 129 mm to 138 mm. Humidity rises from 77% to 78%. The average wind speed doesn’t change much during July, staying around 2 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
August brings much the same weather, it remains ok.
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 increasing during July, going from 1 m/s to 2 m/s over the course of the month.
Rain
How was the weather last July in Siem Reap?
Climate Change Over the Years
The climate in Siem Reap in July 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 July a good time to visit Siem Reap?
Can you sunbathe in Siem Reap in July?
Is Siem Reap rainy in July?
Is it sunny in Siem Reap in July?
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.