September weather forecast
Kep, Cambodia

September marks the tail end of the rainy season in Kep, with rainfall intensifying to 125mm (4.92"). The weather remains consistent with that of August, with high humidity levels and a sizable number of cloudy days. As the monsoon season starts to ebb away, the city begins to transition to the dry and slightly cooler part of the year. The wind speed also begins to decrease, setting the stage for calmer evenings. A slight decrease in daylight hours characterizes the approach of autumn.

Temperature

Lowest temperatures are observed in September and December, averaging a high-temperature of 29.3°C (84.7°F).

Heat index

September's heat index is calculated to be a sweltering 36°C (96.8°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The months with the highest humidity in Kep are September and October, with an average relative humidity of 80%.

Rainfall

In September, the rain falls for 24.2 days. Throughout September, 125mm (4.92") of precipitation is accumulated. In Kep, during the entire year, the rain falls for 246.3 days and collects up to 1090mm (42.91") of precipitation.

Daylight

In Kep, Cambodia, the average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:12. On the last day of September, sunrise is at 05:51 and sunset at 17:53 +07.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The months with the highest UV index in Kep, Cambodia, are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during September translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.