September weather forecastPrey Nob, Cambodia

September

Weather in September

As Prey Nob enters the post-monsoon phase in September, rainfall continues to subside from the peak monsoon levels of the previous months. The reduction in the rainy spells is noticeable, turning the weather a little more congenial. However, the wind speed drops to 15.8km/h (9.8mph), keeping the remnants of the monsoon alive. The subsequent month of October dictates this trend further, with weather substantially transitioning towards the dry season.

Temperature

The yearly lowest temperatures occur in January and September, averaging a high-temperature of 28.8°C (83.8°F).

Heat index

For September, the heat index is appraised at a hot 34°C (93.2°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The most humid month is September, with an average relative humidity of 79%.

Rainfall

The month with the most rainfall is September, when the rain falls for 26.2 days and typically aggregates up to 431mm (16.97") of precipitation.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September, sunrise is at 05:55 and sunset at 18:14. On the last day of the month, sunrise is at 05:53 and sunset at 17:55 +07.

Sunshine

In September, the average sunshine is 8.2h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 7 in September translates into this advice:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

The coldest period falls in January and September, when the average high-temperature reaches 28.8°C (83.8°F).

During September, Prey Nob experiences an average high-temperature of 28.8°C (83.8°F) and a low-temperature of 26.8°C (80.2°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in September is appraised at 34°C (93.2°F).

The most humid month is September, with an average relative humidity of 79%.

The average relative humidity in September is 79%.

The month with the most rainfall in Prey Nob, Cambodia, is September, when the rain falls for 26.2 days and typically aggregates up to 431mm (16.97") of precipitation.

In Prey Nob, in September, during 26.2 rainfall days, 431mm (16.97") of precipitation is typically accumulated.

In Prey Nob, the average day length in September is 12h and 11min.

On the first day of September, sunrise is at 05:55 and sunset at 18:14. On the last day of the month, sunrise is at 05:53 and sunset at 17:55 +07.

The average sunshine duration in September is 8.2h.

The months with the highest UV index are January through December, with an average maximum UV index of 7.

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Prey Nob, Cambodia

  • Average high temperature in September: 28.8°C

The warmest month (with the highest average high temperature) is May (30.8°C).
The months with the lowest average high temperature are January and September (28.8°C).

  • Average low temperature in September: 26.8°C

The month with the highest average low temperature is May (28.5°C).
The coldest month (with the lowest average low temperature) is January (25°C).

Average pressure in September
Prey Nob, Cambodia

  • Average pressure in September: 1008.6mbar

The month with the highest atmospheric pressure is January (1011.9mbar).
The months with the lowest atmospheric pressure are June and July (1007.9mbar).

Average wind speed in September
Prey Nob, Cambodia

  • Average wind speed in September: 15.8km/h

The windiest month (with the highest average wind speed) is August (17.1km/h).
The calmest months (with the lowest average wind speed) are April and October (10.9km/h).

Average humidity in September
Prey Nob, Cambodia

  • Average humidity in September: 79%

The month with the highest relative humidity is September (79%).
The months with the lowest relative humidity are January and December (71%).

Average rainfall in September
Prey Nob, Cambodia

  • Average rainfall in September: 431mm

The wettest month (with the highest rainfall) is September (431mm).
The driest month (with the least rainfall) is February (22mm).

Average rainfall days in September
Prey Nob, Cambodia

  • Average rainfall days in September: 26.2 days

The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is February (9.5 days).

Average daylight in September /
Average sunshine in September
Prey Nob, Cambodia

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in September: 8h and 12min

The month with the most sunshine is April (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in September
Prey Nob, Cambodia

  • Average sunshine days in September: 1.9 days

The month with the most sunshine days is January (17.9 days).
The month with the least sunshine days is August (1.7 days).

Average UV index in September
Prey Nob, Cambodia

  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in September
Prey Nob, Cambodia

  • Average cloud cover in September: 50

The months with the most cloud cover are July and September (Cloud cover 50).
The month with the least cloud cover is February (Cloud cover 24).

Average visibility in September
Prey Nob, Cambodia

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).