September weather forecastUduvil, Sri Lanka
September
Weather in September
September, the first month of the autumn in Uduvil, is also a moderately hot month, with an average temperature fluctuating between 28.8°C (83.8°F) and 27.5°C (81.5°F).Temperature
The advent of September presents an average high-temperature of a still moderately hot 28.8°C (83.8°F), maintaining a close correlation with the preceding month. During September, Uduvil's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a still moderately hot 27.5°C (81.5°F).Heat index
In September, the heat index is computed to be a tropical 34°C (93.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The months with the highest humidity in Uduvil are May, August and September, with an average relative humidity of 79%.Rainfall
In Uduvil, in September, it is raining for 15.5 days, with typically 58mm (2.28") of accumulated precipitation. In Uduvil, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.Daylight
The average length of the day in September in Uduvil is 12h and 11min.On the first day of September, sunrise is at 06:00 and sunset at 18:18. On the last day of the month, sunrise is at 05:58 and sunset at 18:01 +0530.
Sunshine
The average sunshine in September is 10.2h.UV index
January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Uduvil. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Uduvil, Sri Lanka
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in September: 27.5°C
The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).
Average pressure in September
Uduvil, Sri Lanka
- Average pressure in September: 1007.6mbar
The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.9mbar).
Average wind speed in September
Uduvil, Sri Lanka
- Average wind speed in September: 28.3km/h
The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).
Average humidity in September
Uduvil, Sri Lanka
- Average humidity in September: 79%
The months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in September
Uduvil, Sri Lanka
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).
Average rainfall days in September
Uduvil, Sri Lanka
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).
Average daylight in September /
Average sunshine in September
Uduvil, Sri Lanka
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 10h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Uduvil, Sri Lanka
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).
Average UV index in September
Uduvil, Sri Lanka
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 7).
The month with the lowest UV index is November (UV index 6).
Average cloud cover in September
Uduvil, Sri Lanka
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).
Average visibility in September
Uduvil, Sri Lanka
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
