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
September proves to be the coldest month, recording an average maximum temperature of 29.1°C (84.4°F) and a minimum temperature of 25.3°C (77.5°F).Heat index
During September, the heat index is estimated at a very hot 35°C (95°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. 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 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important 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.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
May, September and November, with an average relative humidity of 81%, are the most humid months.Rainfall
In September, the rain falls for 13.2 days. Throughout September, 48mm (1.89") of precipitation is accumulated. Throughout the year, in Ambagahahena, there are 180 rainfall days, and 509mm (20.04") of precipitation is accumulated.Daylight
In Ambagahahena, the average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 06:00 and sunset at 18:14. On the last day of September, in Ambagahahena, Sri Lanka, sunrise is at 05:55 and sunset at 17:59 +0530.
Sunshine
In September, the average sunshine in Ambagahahena is 8.6h.UV index
The months with the highest UV index in Ambagahahena, Sri Lanka, 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 hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 7 in September translates into these instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Ambagahahena?
How hot does it get in Ambagahahena in September?
What is the most humid month in Ambagahahena?
What is the average humidity in September in Ambagahahena?
How much does it rain in Ambagahahena in September?
How many hours of daylight does Ambagahahena have in September?
When are sunrise and sunset in September in Ambagahahena?
How many hours of sunshine does Ambagahahena have in September?
What are the months with the highest UV index in Ambagahahena?
When is the lowest UV index in Ambagahahena?
How high is the UV index in September in Ambagahahena?
Average temperature in September
Ambagahahena, Sri Lanka
- Average high temperature in September: 29.1°C
The warmest months (with the highest average high temperature) are March and April (31.1°C).
The month with the lowest average high temperature is September (29.1°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23°C).
Average pressure in September
Ambagahahena, Sri Lanka
- Average pressure in September: 1010.2mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).
Average wind speed in September
Ambagahahena, Sri Lanka
- Average wind speed in September: 16.3km/h
The windiest month (with the highest average wind speed) is July (18.9km/h).
The calmest month (with the lowest average wind speed) is January (9km/h).
Average humidity in September
Ambagahahena, Sri Lanka
- Average humidity in September: 81%
The months with the highest relative humidity are May, September and November (81%).
The months with the lowest relative humidity are January and February (77%).
Average rainfall in September
Ambagahahena, Sri Lanka
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is November (66mm).
The driest month (with the least rainfall) is January (22mm).
Average rainfall days in September
Ambagahahena, Sri Lanka
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is November (19.8 days).
The month with the least rainy days is June (10.7 days).
Average daylight in September /
Average sunshine in September
Ambagahahena, Sri Lanka
- Average daylight in September: 12h and 1min
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 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is April (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Ambagahahena, Sri Lanka
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is November (7.8 days).
Average UV index in September
Ambagahahena, 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
Ambagahahena, Sri Lanka
- Average cloud cover in September: 50
The month with the most cloud cover is June (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility in September
Ambagahahena, 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).
