Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The average high-temperature during September is a still warm 27°C (80.6°F), almost matching the conditions of the preceding month. In Bogahakumbura, September nights cool down to an average of 18.3°C (64.9°F).Heat index
September's heat index is computed to be a tropical 30°C (86°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In Bogahakumbura, the average relative humidity in September is 82%.Rainfall
In Bogahakumbura, during September, the rain falls for 25.8 days and regularly aggregates up to 198mm (7.8") of precipitation. Throughout the year, there are 297.7 rainfall days, and 2800mm (110.24") of precipitation is accumulated.Daylight
In Bogahakumbura, the average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 05:59 and sunset at 18:13. On the last day of September, sunrise is at 05:54 and sunset at 17:58 +0530.
Sunshine
The average sunshine in September is 9.3h.UV index
January, September through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Bogahakumbura in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Bogahakumbura have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Bogahakumbura have in September?
What is the month with the lowest UV index in Bogahakumbura?
What is the UV index intensity in September?
Average temperature in September
Bogahakumbura, Sri Lanka
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).
Average pressure in September
Bogahakumbura, Sri Lanka
- Average pressure in September: 1009.4mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
Bogahakumbura, Sri Lanka
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).
Average humidity in September
Bogahakumbura, Sri Lanka
- Average humidity in September: 82%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).
Average rainfall in September
Bogahakumbura, Sri Lanka
- Average rainfall in September: 198mm
The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in September
Bogahakumbura, Sri Lanka
- Average rainfall days in September: 25.8 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (16.3 days).
Average daylight in September /
Average sunshine in September
Bogahakumbura, Sri Lanka
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Bogahakumbura, Sri Lanka
- Average sunshine days in September: 2 days
The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).
Average UV index in September
Bogahakumbura, Sri Lanka
- Average UV index in September: 5
The months with the highest UV index are February, March, April, May, June, July and August (UV index 6).
The months with the lowest UV index are January, September, October, November and December (UV index 5).
Average cloud cover in September
Bogahakumbura, Sri Lanka
- Average cloud cover in September: 46
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in September
Bogahakumbura, Sri Lanka
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).
