September weather forecast
Ellakkala, Sri Lanka

September

Weather in September

September, the first month of the autumn in Ellakkala, is also a moderately hot month, with an average temperature fluctuating between 29.5°C (85.1°F) and 25.2°C (77.4°F).

Temperature

As September takes its course, Ellakkala's average high-temperature registers at a still moderately hot 29.5°C (85.1°F), closely aligning with the preceding month. Ellakkala reports an average low-temperature of 25.2°C (77.4°F) during the subtly cooler September nights.

Heat index

In September, the average heat index is evaluated at a fiery hot 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. 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. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In September, the average relative humidity is 81%.

Rainfall

In Ellakkala, Sri Lanka, during September, the rain falls for 24.4 days and regularly aggregates up to 153mm (6.02") of precipitation. Throughout the year, in Ellakkala, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

In Ellakkala, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:01 and sunset at 18:16. On the last day of September, sunrise is at 05:57 and sunset at 18:01 +0530.

Sunshine

In Ellakkala, the average sunshine in September is 7.7h.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

Is it hot in Ellakkala during September?
During September, Ellakkala experiences an average high-temperature of 29.5°C (85.1°F) and a low-temperature of 25.2°C (77.4°F). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 36°C (96.8°F).
What is the average humidity in September in Ellakkala?
In Ellakkala, the average relative humidity in September is 81%.
How much does it rain in Ellakkala in September?
In Ellakkala, during September, the rain falls for 24.4 days and regularly aggregates up to 153mm (6.02") of precipitation.
What is the average length of the day in September in Ellakkala?
In September, the average day length in Ellakkala is 12h and 10min.
When are sunrise and sunset in September in Ellakkala?
On the first day of September in Ellakkala, Sri Lanka, sunrise is at 06:01 and sunset at 18:16. On the last day of the month, sunrise is at 05:57 and sunset at 18:01 +0530.
How many hours of sunshine does Ellakkala have in September?
In Ellakkala, the average sunshine duration in September is 7.7h.
When is the highest UV index in Ellakkala?
The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7.
What is the UV index reading in September in Ellakkala?
In Ellakkala, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Ellakkala, Sri Lanka
Average temperature in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average pressure in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average wind speed in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average humidity in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average rainfall in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average rainfall days in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average daylight in September /
Average sunshine in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average sunshine days in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average UV index in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average cloud cover in September
Ellakkala, 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 - Ellakkala, Sri Lanka
Average visibility in September
Ellakkala, 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).

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