September weather forecastAbasingammedda, Sri Lanka
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Abasingammedda, Sri Lanka, with an average temperature fluctuating between 21°C (69.8°F) and 29.4°C (84.9°F).Temperature
Abasingammedda's average high-temperature marks a still warm 29.4°C (84.9°F) with the advent of September, closely mirroring that of the preceding month. In the month of September, Abasingammedda witnesses a consistent average low-temperature of 21°C (69.8°F).Heat index
For September, the heat index is computed to be a torrid 35°C (95°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 hold particular importance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Abasingammedda, Sri Lanka, the average relative humidity in September is 77%.Rainfall
In Abasingammedda, during September, the rain falls for 23.9 days and regularly aggregates up to 129mm (5.08") of precipitation. Throughout the year, in Abasingammedda, there are 278.9 rainfall days, and 1477mm (58.15") of precipitation is accumulated.Daylight
In September, the average length of the day in Abasingammedda is 12h and 10min.On the first day of September, sunrise is at 05:59 and sunset at 18:14. On the last day of the month, sunrise is at 05:55 and sunset at 17:59 +0530.
Sunshine
The average sunshine in September is 9.9h.UV index
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Abasingammedda, Sri Lanka
- Average high temperature in September: 29.4°C
The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).
- Average low temperature in September: 21°C
The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).
Average pressure in September
Abasingammedda, Sri Lanka
- Average pressure in September: 1009.2mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).
Average wind speed in September
Abasingammedda, Sri Lanka
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).
Average humidity in September
Abasingammedda, Sri Lanka
- Average humidity in September: 77%
The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).
Average rainfall in September
Abasingammedda, Sri Lanka
- Average rainfall in September: 129mm
The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Abasingammedda, Sri Lanka
- Average rainfall days in September: 23.9 days
The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).
Average daylight in September /
Average sunshine in September
Abasingammedda, Sri Lanka
- Average daylight in September: 12h and 12min
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 54min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Abasingammedda, Sri Lanka
- Average sunshine days in September: 3.6 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).
Average UV index in September
Abasingammedda, Sri Lanka
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in September
Abasingammedda, Sri Lanka
- Average cloud cover in September: 36
The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).
Average visibility in September
Abasingammedda, Sri Lanka
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).
