September weather forecastPallegammedda, Sri Lanka
September
Weather in September
The first month of the autumn, September, is still a warm month in Pallegammedda, Sri Lanka, with an average temperature varying between 27°C (80.6°F) and 18.3°C (64.9°F).Temperature
Pallegammedda's September average high-temperature settles at a still warm 27°C (80.6°F), showing a near match with the preceding month. In Pallegammedda, September's nights observe an average temperature dip to an enjoyable 18.3°C (64.9°F).Heat index
The heat index value during September is estimated at a tropical 30°C (86°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The average relative humidity in September is 82%.Rainfall
In September, the rain falls for 25.8 days. Throughout September, 198mm (7.8") of precipitation is accumulated. In Pallegammedda, during the entire year, the rain falls for 297.7 days and collects up to 2800mm (110.24") of precipitation.Daylight
In Pallegammedda, the average length of the day in September 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 05:54 and sunset at 17:58 +0530.
Sunshine
In September, the average sunshine is 9.3h.UV index
January, September through December, with an average maximum UV index of 5, are months with the lowest UV index in Pallegammedda. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pallegammedda, Sri Lanka
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).
Average pressure in September
Pallegammedda, Sri Lanka
- Average pressure in September: 1009.4mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
Pallegammedda, Sri Lanka
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).
Average humidity in September
Pallegammedda, Sri Lanka
- Average humidity in September: 82%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).
Average rainfall in September
Pallegammedda, Sri Lanka
- Average rainfall in September: 198mm
The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in September
Pallegammedda, Sri Lanka
- Average rainfall days in September: 25.8 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (16.3 days).
Average daylight in September /
Average sunshine in September
Pallegammedda, 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 18min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Pallegammedda, Sri Lanka
- Average sunshine days in September: 2 days
The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).
Average UV index in September
Pallegammedda, Sri Lanka
- Average UV index in September: 5
The months with the highest UV index are February, March, April, May, June, July and August (UV index 6).
The months with the lowest UV index are January, September, October, November and December (UV index 5).
Average cloud cover in September
Pallegammedda, Sri Lanka
- Average cloud cover in September: 46
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in September
Pallegammedda, Sri Lanka
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).
