September weather forecast
Kurunegala, Sri Lanka

The weather in September in Kurunegala showcases a slight increase in rainfall from 46mm (1.81") in August to 72mm (2.83"). This increase carries on with the progression from the relatively drier months into the wetter end of the year. Sunshine hours begin to lessen as the rainy season encroaches, yet they remain amply present. Changes in wind conditions can be noticed during this month, while temperature ranges remain reliably tropical. Atmospheric pressure begins to slowly escalate from this month.

Temperature

September's arrival in Kurunegala brings an average high-temperature of a still hot 31.2°C (88.2°F), slightly deviating from August's 30.8°C (87.4°F). During September, the nighttime temperature averages to a pleasant 22.3°C (72.1°F).

Heat index

For September, the heat index is evaluated at a very hot 39°C (102.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

March and September, with an average relative humidity of 72%, are the least humid months in Kurunegala.

Rainfall

In Kurunegala, in September, during 15.2 rainfall days, 72mm (2.83") of precipitation is typically accumulated. In Kurunegala, during the entire year, the rain falls for 217.7 days and collects up to 1165mm (45.87") of precipitation.

Daylight

In Kurunegala, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:16. On the last day of September, in Kurunegala, sunrise is at 05:56 and sunset at 18:00 +0530.

Sunshine

The average sunshine in September in Kurunegala is 10.5h.

UV index

The months with the highest UV index in Kurunegala are March through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.