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
Kalpitiya's average high-temperature in September sits at a tropical 30°C (86°F), showing little difference from the previous month. September notes an average low temperature of 26.5°C (79.7°F), subtly down from the daytime highs.Heat index
In September, the average heat index is evaluated at a fiery hot 37°C (98.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
The average relative humidity in September in Kalpitiya is 77%.Rainfall
In Kalpitiya, in September, it is raining for 17.4 days, with typically 81mm (3.19") of accumulated precipitation. Throughout the year, in Kalpitiya, there are 221.7 rainfall days, and 1071mm (42.17") of precipitation is accumulated.Daylight
In September, the average length of the day in Kalpitiya is 12h and 10min.On the first day of September in Kalpitiya, Sri Lanka, sunrise is at 06:02 and sunset at 18:19. On the last day of the month, sunrise is at 05:59 and sunset at 18:02 +0530.
Sunshine
In September, the average sunshine in Kalpitiya, Sri Lanka, is 8.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Kalpitiya. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 7 suggests these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Kalpitiya in September?
What is the average humidity in September in Kalpitiya?
How much does it rain in Kalpitiya in September?
What is the average length of the day in September in Kalpitiya?
When is the sunrise / sunset in September in Kalpitiya?
How long on average sun shines in September in Kalpitiya?
What are the months with the highest UV index in Kalpitiya?
When is the lowest UV index in Kalpitiya?
What is the UV index intensity in September in Kalpitiya?
Average temperature in September
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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
Kalpitiya, 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).
