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
With the onset of September, Nilpanagoda's average high-temperature clocks in at a still warm 29.5°C (85.1°F), showing a minor fluctuation from the previous month. Nilpanagoda observes a minimal variance in temperature, with a consistent average low of 25.2°C (77.4°F) during the nights of September.Heat index
The heat index for September is appraised at a very hot 36°C (96.8°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. 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 fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
The average relative humidity in September in Nilpanagoda is 81%.Rainfall
In Nilpanagoda, in September, it is raining for 24.4 days, with typically 153mm (6.02") of accumulated precipitation. In Nilpanagoda, Sri Lanka, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.Daylight
The average length of the day in September is 12h and 10min.On the first day of September in Nilpanagoda, sunrise is at 06:02 and sunset at 18:17. On the last day of the month, sunrise is at 05:58 and sunset at 18:01 +0530.
Sunshine
In Nilpanagoda, the average sunshine in September is 7.7h.UV index
The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 7 in September translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
How hot is September in Nilpanagoda?
What is the average humidity in September in Nilpanagoda?
How much does it rain in Nilpanagoda in September?
How many hours of daylight does Nilpanagoda have in September?
What time are sunrise and sunset in September in Nilpanagoda?
How long on average sun shines in September in Nilpanagoda?
What are the months with the highest UV index in Nilpanagoda?
What is the UV index reading in September in Nilpanagoda?
Average temperature in September
Nilpanagoda, Sri Lanka
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).
- Average low temperature in September: 25.2°C
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).
Average pressure in September
Nilpanagoda, Sri Lanka
- Average pressure in September: 1009.6mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).
Average wind speed in September
Nilpanagoda, Sri Lanka
- Average wind speed in September: 16km/h
The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).
Average humidity in September
Nilpanagoda, Sri Lanka
- Average humidity in September: 81%
The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).
Average rainfall in September
Nilpanagoda, Sri Lanka
- Average rainfall in September: 153mm
The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days in September
Nilpanagoda, Sri Lanka
- Average rainfall days in September: 24.4 days
The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).
Average daylight in September /
Average sunshine in September
Nilpanagoda, 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 4min
The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in September
Nilpanagoda, Sri Lanka
- Average sunshine days in September: 3 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).
Average UV index in September
Nilpanagoda, Sri Lanka
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover in September
Nilpanagoda, Sri Lanka
- Average cloud cover in September: 55
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).
Average visibility in September
Nilpanagoda, Sri Lanka
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).
Nilpanagoda, Sri Lanka
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