September weather forecast
Krong Siem Reap, Cambodia

September stands as the wettest month, climatologically, in Krong Siem Reap. Presented as a continuation of August's trend, September's weather characteristics include similar temperature ranges. However, one striking difference is in precipitation, with rainfall reaching a yearly high of 250mm (9.84"). This solidifies the month's position at the peak of the rainy season. September's rainy afternoons make it ideal for those with a preference for dramatic weather, and the need for sun protection remains high due to maintained UV radiation levels.

Temperature

The commencement of September notes an average high-temperature of a still hot 31°C (87.8°F), exhibiting little difference from the previous month. Krong Siem Reap reports an average low-temperature of 24°C (75.2°F) during the nights of September.

Rainfall

The month with the most rainfall in Krong Siem Reap is September, when the rain falls for 18 days and typically aggregates up to 250mm (9.84") of precipitation.

Daylight

In Krong Siem Reap, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 05:53 and sunset at 18:15. On the last day of the month, sunrise is at 05:53 and sunset at 17:55 +07.

Sunshine

August and September, with an average of 5h of sunshine, are months with the least sunshine in Krong Siem Reap.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an extreme health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 12 in September suggests the following recommendations:
Employ all crucial safeguards, unprotected skin could burn rapidly. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Regularly apply and reapply a broad-spectrum sunscreen with a minimum SPF 30 every two hours, or straight after swimming or an outdoor activity.