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
Weather in September
Temperature
Ihala Keembiya experiences the lowest of its temperatures in August and September, when the average high-temperatures rise to 28.3°C (82.9°F).Heat index
The heat index value during September is appraised at a tropical 33°C (91.4°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The months with the highest humidity are June and September, with an average relative humidity of 82%.Rainfall
In September, in Ihala Keembiya, the rain falls for 24.5 days. Throughout September, 222mm (8.74") of precipitation is accumulated. Throughout the year, in Ihala Keembiya, there are 286.9 rainfall days, and 1974mm (77.72") of precipitation is accumulated.Daylight
In September, the average length of the day in Ihala Keembiya, Sri Lanka, is 12h and 9min.On the first day of the month, sunrise is at 06:01 and sunset at 18:15. On the last day of September, sunrise is at 05:56 and sunset at 18:00 +0530.
Sunshine
In September, the average sunshine is 8.5h.UV index
May and September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What time of the year is the coldest in Ihala Keembiya?
How hot does it get in Ihala Keembiya in September?
What is the most humid month in Ihala Keembiya?
What is the average humidity in September in Ihala Keembiya?
How many days does it rain in September in Ihala Keembiya?
What is the average length of the day in September in Ihala Keembiya?
When is the sunrise / sunset in September in Ihala Keembiya?
How many hours of sunshine does Ihala Keembiya have in September?
What are the months with the lowest UV index in Ihala Keembiya?
How high is the UV index in September in Ihala Keembiya?
Average temperature in September
Ihala Keembiya, Sri Lanka
- Average high temperature in September: 28.3°C
The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).
- Average low temperature in September: 25.8°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure in September
Ihala Keembiya, 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
Ihala Keembiya, Sri Lanka
- Average wind speed in September: 17.3km/h
The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).
Average humidity in September
Ihala Keembiya, Sri Lanka
- Average humidity in September: 82%
The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).
Average rainfall in September
Ihala Keembiya, Sri Lanka
- Average rainfall in September: 222mm
The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Ihala Keembiya, Sri Lanka
- Average rainfall days in September: 24.5 days
The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).
Average daylight in September /
Average sunshine in September
Ihala Keembiya, 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 3min
The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Ihala Keembiya, Sri Lanka
- Average sunshine days in September: 2.4 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).
Average UV index in September
Ihala Keembiya, Sri Lanka
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, June, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May and September (UV index 6).
Average cloud cover in September
Ihala Keembiya, Sri Lanka
- Average cloud cover in September: 50
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility in September
Ihala Keembiya, Sri Lanka
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).
Ihala Keembiya, Sri Lanka
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