September weather forecastAdappankulam, Sri Lanka
September
Weather in September
The first month of the autumn, September, is still a tropical month in Adappankulam, Sri Lanka, with an average temperature fluctuating between 24.8°C (76.6°F) and 32.6°C (90.7°F).Temperature
The shift into September records an average high-temperature of a still hot 32.6°C (90.7°F), subtly varied from August's 32.8°C (91°F). Adappankulam's average low-temperature in the month of September is recorded at a moderately hot 24.8°C (76.6°F).Heat index
The heat index value during September is evaluated at a scorching 43°C (109.4°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.Consider that heat index readings are for situations in the shade and light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The months with the lowest humidity in Adappankulam are July through September, with an average relative humidity of 71%.Rainfall
In Adappankulam, in September, it is raining for 14 days, with typically 57mm (2.24") of accumulated precipitation. Throughout the year, there are 199.1 rainfall days, and 893mm (35.16") of precipitation is accumulated.Daylight
The average length of the day in September in Adappankulam, Sri Lanka, is 12h and 10min.On the first day of the month, sunrise is at 06:00 and sunset at 18:16. On the last day of September, sunrise is at 05:56 and sunset at 18:00 +0530.
Sunshine
The average sunshine in September is 9.6h.UV index
The months with the highest UV index in Adappankulam, Sri Lanka, are February through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Adappankulam, Sri Lanka
- Average high temperature in September: 32.6°C
The warmest months (with the highest average high temperature) are March and April (34.3°C).
The month with the lowest average high temperature is December (29.5°C).
- Average low temperature in September: 24.8°C
The month with the highest average low temperature is June (25.4°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in September
Adappankulam, Sri Lanka
- Average pressure in September: 1008.6mbar
The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.2mbar).
Average wind speed in September
Adappankulam, Sri Lanka
- Average wind speed in September: 23.1km/h
The windiest month (with the highest average wind speed) is June (27.4km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in September
Adappankulam, Sri Lanka
- Average humidity in September: 71%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are July, August and September (71%).
Average rainfall in September
Adappankulam, Sri Lanka
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is October (205mm).
The driest month (with the least rainfall) is June (20mm).
Average rainfall days in September
Adappankulam, Sri Lanka
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is November (25.5 days).
The month with the least rainy days is July (10.4 days).
Average daylight in September /
Average sunshine in September
Adappankulam, 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 36min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are May and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Adappankulam, Sri Lanka
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is July (18.3 days).
The month with the least sunshine days is November (3.2 days).
Average UV index in September
Adappankulam, Sri Lanka
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in September
Adappankulam, Sri Lanka
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is March (Cloud cover 26).
Average visibility in September
Adappankulam, 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, February, November and December (8km).
