September weather forecast
Khŭm Sráng, Cambodia

The weather in Khŭm Sráng shows evident signs of transitioning from a hot, wet climate to a relatively cooler, drier one in September. A significant retreat is noticed in the cloud percentage from 45% in August to 50% in September whilst daytime temperatures see a slight decrease. Rainfall spikes to its annual high of 174mm (6.85"), while wind gusts cool down to 12.3km/h (7.6mph) after peaking in August. Despite these changes, the prominence of the sun remains consistent, as Daylight and sunshine hours do not vary drastically. The UV index remains steady, necessitating sun protection on clear days.

Temperature

September's arrival brings an average high-temperature of a still tropical 31.8°C (89.2°F), demonstrating subtle variation from the preceding month. Khŭm Sráng observes an average nighttime temperature of 24.6°C (76.3°F) during September.

Heat index

The heat index for September is calculated to be a scorching 43°C (109.4°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The months with the highest humidity are September and October, with an average relative humidity of 79%.

Rainfall

The month with the most rainfall in Khŭm Sráng, Cambodia, is September, when the rain falls for 28.1 days and typically aggregates up to 174mm (6.85") of precipitation.

Daylight

In Khŭm Sráng, the average length of the day in September is 12h and 11min.
On the first day of September in Khŭm Sráng, sunrise is at 05:51 and sunset at 18:11. On the last day of the month, sunrise is at 05:50 and sunset at 17:52 +07.

Sunshine

In September, the average sunshine is 8.1h.

UV index

The months with the lowest UV index in Khŭm Sráng are January, April through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Ward off overexposure. Defence against solar harm is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.