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
September commences with an average high-temperature of a still moderately hot 27.5°C (81.5°F), showing little deviation from August's 27.5°C (81.5°F). Maskeliya reports an average low-temperature of 20.9°C (69.6°F) during the nights of September.Heat index
The heat index value during September is evaluated at a hot 32°C (89.6°F). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September in Maskeliya is 86%.Rainfall
In September, in Maskeliya, the rain falls for 25.8 days. Throughout September, 178mm (7.01") of precipitation is accumulated. In Maskeliya, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.Daylight
The average length of the day in September in Maskeliya, Sri Lanka, is 12h and 10min.On the first day of September, sunrise is at 06:00 and sunset at 18:14. On the last day of the month, sunrise is at 05:55 and sunset at 17:59 +0530.
Sunshine
In September, the average sunshine is 7.5h.UV index
The months with the lowest UV index in Maskeliya are September and October, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Maskeliya?
What is the average humidity in September in Maskeliya?
How many days does it rain in September in Maskeliya?
What is the average length of the day in September in Maskeliya?
What time are sunrise and sunset in September in Maskeliya?
How long on average sun shines in September in Maskeliya?
What are the months with the lowest UV index in Maskeliya?
What is the UV index intensity in September in Maskeliya?
Average temperature in September
Maskeliya, Sri Lanka
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°C).
- Average low temperature in September: 20.9°C
The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.7°C).
Average pressure in September
Maskeliya, Sri Lanka
- Average pressure in September: 1009.8mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in September
Maskeliya, Sri Lanka
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).
Average humidity in September
Maskeliya, Sri Lanka
- Average humidity in September: 86%
The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).
Average rainfall in September
Maskeliya, Sri Lanka
- Average rainfall in September: 178mm
The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in September
Maskeliya, 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 January (18.9 days).
Average daylight in September /
Average sunshine in September
Maskeliya, 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 42min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Maskeliya, Sri Lanka
- Average sunshine days in September: 1.4 days
The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).
Average UV index in September
Maskeliya, Sri Lanka
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
The months with the lowest UV index are September and October (UV index 5).
Average cloud cover in September
Maskeliya, Sri Lanka
- Average cloud cover in September: 59
The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).
Average visibility in September
Maskeliya, Sri Lanka
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).
Maskeliya, Sri Lanka
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