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
As September is ushered, it sees an average high temperature of a still moderately hot 28.8°C (83.8°F), holding steady from August. During the nights of September, Chavakachcheri records an average temperature of 27.5°C (81.5°F), a minor drop from daytime peaks.Heat index
The heat index value for September is estimated at a hot 34°C (93.2°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
May, August and September, with an average relative humidity of 79%, are the most humid months.Rainfall
In Chavakachcheri, in September, during 15.5 rainfall days, 58mm (2.28") of precipitation is typically accumulated. In Chavakachcheri, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.Daylight
In Chavakachcheri, the average length of the day in September is 12h and 11min.On the first day of September in Chavakachcheri, sunrise is at 06:00 and sunset at 18:18. On the last day of the month, sunrise is at 05:57 and sunset at 18:00 +0530.
Sunshine
The average sunshine in September is 10.2h.UV index
January through October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Chavakachcheri?
What is the most humid month in Chavakachcheri?
What is the average humidity in September in Chavakachcheri?
How many days does it rain in September in Chavakachcheri?
How many hours of daylight does Chavakachcheri have in September?
What time are sunrise and sunset in September in Chavakachcheri?
How long on average sun shines in September in Chavakachcheri?
What is the month with the highest UV index in Chavakachcheri?
What is the UV index intensity in September in Chavakachcheri?
Average temperature in September
Chavakachcheri, Sri Lanka
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in September: 27.5°C
The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).
Average pressure in September
Chavakachcheri, Sri Lanka
- Average pressure in September: 1007.6mbar
The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.9mbar).
Average wind speed in September
Chavakachcheri, Sri Lanka
- Average wind speed in September: 28.3km/h
The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).
Average humidity in September
Chavakachcheri, Sri Lanka
- Average humidity in September: 79%
The months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in September
Chavakachcheri, Sri Lanka
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).
Average rainfall days in September
Chavakachcheri, Sri Lanka
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).
Average daylight in September /
Average sunshine in September
Chavakachcheri, Sri Lanka
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Chavakachcheri, Sri Lanka
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).
Average UV index in September
Chavakachcheri, 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 and December (UV index 7).
The month with the lowest UV index is November (UV index 6).
Average cloud cover in September
Chavakachcheri, Sri Lanka
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).
Average visibility in September
Chavakachcheri, 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).
