September Weather in Sandan, Cambodia

Last updated: August 22, 2025

In Sandan, Cambodia, the average temperature in September hovers around 27°C (82°F), with a minimum of 23°C (74°F) and a peak reaching 35°C (96°F). Expect a significant amount of precipitation, totaling 317 mm (12.5 in) over 27 days, and prepare for a high average humidity of 91%.

September Temperature in Sandan

In September in Sandan, the average temperature is 27°C (82°F). Maximums can reach 35°C (96°F), while minimums can drop to as low as 23°C (74°F). This mild and warm weather makes Sandan an ideal destination for travelers looking to enjoy pleasant outdoor activities.

September Weather in Sandan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sandan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sandan, September typically has an average temperature of 27°C (82°F), with highs reaching up to 35°C (96°F) and lows dropping to around 23°C (74°F).

Data source: Temperature data for Sandan generated using information from the Copernicus Climate Change Service.

September Precipitation in Sandan

In Sandan in September, the precipitation amount is 317 mm (12.5 in) over the course of 27 days.

September Precipitation Trends in Sandan

The chart displays monthly precipitation patterns in Sandan, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Sandan, September typically receives around 317 mm (12.5 inches) of precipitation spread over approximately 27 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Sandan

In Sandan in September, humidity is 91%. With an average temperature of 27°C (82°F), this humidity feels like a heavy, warm blanket wrapping around you, making outdoor adventures feel sticky and exhausting, and prompting you to seek respite in shaded areas or air-conditioned spaces.

September Average Humidity in Sandan

This chart illustrates the average monthly humidity levels in Sandan, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Sandan is approximately 91%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sandan

In Sandan in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Sandan, you can check here.

Maximum UV Index Levels in Sandan for September

The chart shows the monthly maximum UV Index (UVI) for Sandan in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Sandan typically reaches 14, which falls under the extreme exposure category.

Data source: Sandan September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Sandan Compares to Other Months

Weather in Sandan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sandan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sandan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	7 mm (0.3 inches)	63%	very high
February Weather	28°C (83°F)	3 mm (0.1 inches)	55%	extreme
March Weather	29°C (85°F)	40 mm (1.6 inches)	48%	extreme
April Weather	29°C (85°F)	101 mm (4.0 inches)	48%	extreme
May Weather	29°C (84°F)	186 mm (7.3 inches)	74%	extreme
June Weather	29°C (84°F)	170 mm (6.7 inches)	88%	extreme
July Weather	28°C (83°F)	226 mm (8.9 inches)	90%	extreme
August Weather	28°C (83°F)	247 mm (9.7 inches)	92%	extreme
September Weather	27°C (82°F)	317 mm (12.5 inches)	91%	extreme
October Weather	27°C (81°F)	228 mm (9.0 inches)	87%	extreme
November Weather	27°C (81°F)	101 mm (4.0 inches)	84%	extreme
December Weather	26°C (80°F)	18 mm (0.7 inches)	76%	very high