September weather forecastLenadora, Sri Lanka
September
Weather in September
The first month of the autumn, September, is still a tropical month in Lenadora, Sri Lanka, with temperature in the range of an average high of 33.9°C (93°F) and an average low of 24.1°C (75.4°F).Temperature
During September, Lenadora observes a subtle ascent to a still tropical 33.9°C (93°F) from August's 33.7°C (92.7°F) in the average high-temperature. September nights are marked by an average temperature drop to a moderately hot 24.1°C (75.4°F).Heat index
September's heat index is calculated to be a life-threatening hot 45°C (113°F). Take note: Heat exhaustion and heat cramps are expected. Heatstroke can occur with prolonged effort.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The months with the lowest humidity are June through September, with an average relative humidity of 67%.Rainfall
In Lenadora, during September, the rain falls for 13.5 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.Daylight
In Lenadora, 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 18:15. On the last day of September, in Lenadora, sunrise is at 05:55 and sunset at 17:59 +0530.
Sunshine
In September, the average sunshine is 10.9h.UV index
February through October, with an average maximum UV index of 7, are months with the highest UV index in Lenadora. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 7 in September leads to these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lenadora, Sri Lanka
- Average high temperature in September: 33.9°C
The warmest month (with the highest average high temperature) is April (34.9°C).
The months with the lowest average high temperature are January and December (29.3°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is June (24.8°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).
Average pressure in September
Lenadora, Sri Lanka
- Average pressure in September: 1008.8mbar
The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.5mbar).
Average wind speed in September
Lenadora, Sri Lanka
- Average wind speed in September: 18.7km/h
The windiest month (with the highest average wind speed) is June (23.8km/h).
The calmest month (with the lowest average wind speed) is April (7.1km/h).
Average humidity in September
Lenadora, Sri Lanka
- Average humidity in September: 67%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are June, July, August and September (67%).
Average rainfall in September
Lenadora, Sri Lanka
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is October (214mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days in September
Lenadora, Sri Lanka
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is November (24.1 days).
The month with the least rainy days is June (7.8 days).
Average daylight in September /
Average sunshine in September
Lenadora, Sri Lanka
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Lenadora, Sri Lanka
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is July (16 days).
The month with the least sunshine days is November (4.2 days).
Average UV index in September
Lenadora, Sri Lanka
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).
Average cloud cover in September
Lenadora, Sri Lanka
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in September
Lenadora, Sri Lanka
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and December (7km).
