September weather forecastHarasbedda, Sri Lanka
September
Weather in September
The first month of the autumn, September, is still a warm month in Harasbedda, Sri Lanka, with temperature in the range of an average low of 18.3°C (64.9°F) and an average high of 27°C (80.6°F).Temperature
On the advent of September, Harasbedda's average high-temperature exhibits a minor adjustment to a still warm 27°C (80.6°F) from August's 27.1°C (80.8°F). Harasbedda observes an average low-temperature of 18.3°C (64.9°F) during September.Heat index
Throughout September, the heat index is computed to be a tropical 30°C (86°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
In Harasbedda, the average relative humidity in September is 82%.Rainfall
In Harasbedda, during September, the rain falls for 25.8 days and regularly aggregates up to 198mm (7.8") of precipitation. In Harasbedda, during the entire year, the rain falls for 297.7 days and collects up to 2800mm (110.24") of precipitation.Daylight
In September, the average length of the day is 12h and 10min.On the first day of the month, sunrise is at 05:58 and sunset at 18:13. On the last day of September, sunrise is at 05:54 and sunset at 17:58 +0530.
Sunshine
In Harasbedda, Sri Lanka, the average sunshine in September is 9.3h.UV index
The months with the lowest UV index in Harasbedda, Sri Lanka, are January, September through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 in September translates into these instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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
Harasbedda, 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).
