Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The commencement of September brings an average high-temperature of a hot 30°C (86°F), marking an inconsequential divergence from August. Madurankuli's nighttime temperatures in September see a subtle dip to an average of 26.5°C (79.7°F).Heat index
Throughout September, the heat index is appraised at a sweltering 37°C (98.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
The average relative humidity in September in Madurankuli is 77%.Rainfall
In Madurankuli, in September, during 17.4 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Madurankuli, during the entire year, the rain falls for 221.7 days and collects up to 1071mm (42.17") of precipitation.Daylight
In Madurankuli, the average length of the day in September is 12h and 10min.On the first day of September, sunrise is at 06:02 and sunset at 18:18. On the last day of the month, sunrise is at 05:58 and sunset at 18:02 +0530.
Sunshine
The average sunshine in September is 8.9h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Madurankuli?
What is the month with the highest UV index?
What are the months with the lowest UV index?
What is the UV index reading in September in Madurankuli?
Average temperature in September
Madurankuli, Sri Lanka
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is April (31.9°C).
The months with the lowest average high temperature are January and December (29.3°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is May (27.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).
Average pressure in September
Madurankuli, 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
Madurankuli, Sri Lanka
- Average wind speed in September: 26.5km/h
The windiest month (with the highest average wind speed) is June (30.4km/h).
The calmest month (with the lowest average wind speed) is April (14.1km/h).
Average humidity in September
Madurankuli, Sri Lanka
- Average humidity in September: 77%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is March (73%).
Average rainfall in September
Madurankuli, Sri Lanka
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is October (195mm).
The driest months (with the least rainfall) are January and February (31mm).
Average rainfall days in September
Madurankuli, Sri Lanka
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is November (25.1 days).
The month with the least rainy days is February (10.5 days).
Average daylight in September /
Average sunshine in September
Madurankuli, Sri Lanka
- Average daylight in September: 12h and 1min
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: 8h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Madurankuli, Sri Lanka
- Average sunshine days in September: 6.1 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is April (3.6 days).
Average UV index in September
Madurankuli, 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, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Madurankuli, Sri Lanka
- Average cloud cover in September: 45
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 22).
Average visibility in September
Madurankuli, Sri Lanka
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
