Kurunegala
Sri Lanka
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Kurunegala, Sri Lanka

The first month of the autumn, September, is also a hot month in Kurunegala, Sri Lanka, with temperature in the range of an average low of 23.5°C (74.3°F) and an average high of 31.5°C (88.7°F).

Temperature

In Kurunegala, the average high-temperature in September is essentially the same as in August - a still tropical 31.5°C (88.7°F). In Kurunegala, the average low-temperature is 23.5°C (74.3°F).

Heat index

The average heat index is estimated at a very hot 39.3°C (102.7°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity in Kurunegala is 71%.

Rainfall

In Kurunegala, in September, during 12 rainfall days, 159mm (6.3") of precipitation is typically accumulated. Throughout the year, there are 129 rainfall days, and 2095mm (82.5") of precipitation is accumulated.

Daylight

The average length of the day in Kurunegala is 12.2h.

Sunshine

Months with the least sunshine in Kurunegala are May through December, with an average of 6h of sunshine.

UV index

Months with the highest UV index in Kurunegala are February through October, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 12 transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.

What is the temperature in September in Kurunegala?

In September, in Kurunegala, the average high-temperature is 31.5°C (88.7°F), and the average low-temperature is 23.5°C (74.3°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, in September is calculated to 39.3°C (102.7°F).

What is the average humidity in September in Kurunegala?

In September, the average relative humidity in Kurunegala is 71%.

How many days does it rain in September in Kurunegala?

In Kurunegala, in September, during 12 rainfall days, 159mm (6.3") of precipitation is typically accumulated.

How many hours of daylight does Kurunegala have in September?

The average length of the day in September in Kurunegala is 12.2h.

What is the month with the least sunshine in Kurunegala?

Months with the least sunshine in Kurunegala, Sri Lanka, are May through December, with an average of 6h of sunshine.

How many hours of sunshine does Kurunegala have in September?

The average sunshine in September in Kurunegala is 6h.

What is the month with the highest UV index in Kurunegala?

February through October, with an average maximum UV index of 12, are months with the highest UV index in Kurunegala, Sri Lanka.

How high is the UV index in September in Kurunegala?

In September, the average daily maximum UV index in Kurunegala, Sri Lanka, is 12. A UV Index estimate of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV rays.
Average temperature in September - Kurunegala, Sri Lanka
  • Average high temperature in September: 31.5°C

The warmest month (with the highest average high temperature) is March (34.5°C).
The month with the lowest average high temperature is December (30.1°C).

  • Average low temperature in September: 23.5°C

The month with the highest average low temperature is May (24.4°C).
The coldest month (with the lowest average low temperature) is January (20.7°C).

Average humidity in September - Kurunegala, Sri Lanka
  • Average humidity in September: 71%

Months with the highest relative humidity are June, October and November (74%).
The month with the lowest relative humidity is February (59%).

Average rainfall in September - Kurunegala, Sri Lanka
  • Average rainfall in September: 159mm

The wettest month (with the highest rainfall) is October (359mm).
The driest month (with the lowest rainfall) is January (62mm).

Average rainfall days in September - Kurunegala, Sri Lanka
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is October (16 days).
The month with the lowest number of rainy days is February (4 days).

Average daylight in September / Average sunshine in September - Kurunegala, Sri Lanka
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.6h).
Months with shortest days are January and December (Average daylight: 11.7h).

  • Average sunshine in September: 6h

The month with most sunshine is March (Average sunshine: 9h).
Months with least sunshine are May, June, July, August, September, October, November and December (Average sunshine: 6).

Average UV index in September - Kurunegala, Sri Lanka
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 11).