September weather forecast
Anlong Veng, Cambodia

As September rolls in, the city experiences the most abundant monthly rainfall of the year, reaching up to 256mm (10.08"). However, the temperatures in September remain steady and continue the trend from August. Despite this, the daylight duration lessens slightly. The month, therefore, presents a weather picture filled with rainy days and an atmospheric pressure leaning towards stability.

Temperature

September registers an average high-temperature of a still tropical 31.2°C (88.2°F), slightly varied from August's 31.7°C (89.1°F). An average minimum temperature of 24.7°C (76.5°F) marks the month of September.

Heat index

In September, the average heat index is evaluated at a scorching 42°C (107.6°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

September is the most humid month, with an average relative humidity of 82%.

Rainfall

The month with the most rainfall is September, when the rain falls for 29.4 days and typically aggregates up to 256mm (10.08") of precipitation.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 05:51 and sunset at 18:15. On the last day of the month, sunrise is at 05:53 and sunset at 17:54 +07.

Sunshine

In September, the average sunshine is 8.2h.

UV index

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.