September weather forecastEppawala, Sri Lanka
September
Weather in September
September, the first month of the autumn in Eppawala, is still a hot month, with an average temperature varying between 32.6°C (90.7°F) and 24.8°C (76.6°F).Temperature
Eppawala's average high-temperature in September sits at a still hot 32.6°C (90.7°F), showing little difference from the previous month. Nighttime temperatures hover around an average low of 24.8°C (76.6°F) in September.Heat index
The heat index in September is evaluated at a blisteringly hot 43°C (109.4°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.Heat index readings emphasize conditions of light breezes and shaded spots. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to 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.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
July through September, with an average relative humidity of 71%, are the least humid months.Rainfall
In September, the rain falls for 14 days. Throughout September, 57mm (2.24") of precipitation is accumulated. 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 is 12h and 10min.On the first day of September, sunrise is at 06:00 and sunset at 18:16. On the last day of the month, sunrise is at 05:56 and sunset at 17:59 +0530.
Sunshine
In Eppawala, the average sunshine in September is 9.6h.UV index
February through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 7 during September leads to these advisories:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Eppawala, 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
Eppawala, 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
Eppawala, 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
Eppawala, 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
Eppawala, 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
Eppawala, 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
Eppawala, 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: 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
Eppawala, 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
Eppawala, 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
Eppawala, 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
Eppawala, 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).
