September weather forecast
Kumarakattuwa, Sri Lanka

September, the first month of the autumn in Kumarakattuwa, is a hot month, with temperature in the range of an average low of 26.5°C (79.7°F) and an average high of 30°C (86°F).

Temperature

Kumarakattuwa records an average high-temperature of a tropical 30°C (86°F) in September, maintaining a close correlation with August's 29.8°C (85.6°F). Kumarakattuwa documents an average low-temperature of 26.5°C (79.7°F) for the nights of September.

Heat index

September's average heat index is calculated to be a torrid 37°C (98.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity in Kumarakattuwa, Sri Lanka, is 77%.

Rainfall

In Kumarakattuwa, in September, it is raining for 17.4 days, with typically 81mm (3.19") of accumulated precipitation. In Kumarakattuwa, during the entire year, the rain falls for 221.7 days and collects up to 1071mm (42.17") of precipitation.

Daylight

In Kumarakattuwa, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:18. On the last day of September, sunrise is at 05:58 and sunset at 18:02 +0530.

Sunshine

In Kumarakattuwa, the average sunshine in September is 8.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Kumarakattuwa. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.