September weather forecast
Kantale, Sri Lanka

September, the first month of the autumn in Kantale, is still a tropical month, with an average temperature ranging between min 24.1°C (75.4°F) and max 33.9°C (93°F).

Temperature

As Kantale welcomes September, the average high-temperature records at a still tropical 33.9°C (93°F), marking an insignificant deviation from the prior month. Kantale's temperature drops to an average low of 24.1°C (75.4°F) during the nights of September.

Heat index

The average heat index in September is appraised at a burning hot 45°C (113°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. 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 evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. 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 body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the lowest humidity are June through September, with an average relative humidity of 67%.

Rainfall

In September, the rain falls for 13.5 days. Throughout September, 53mm (2.09") of precipitation is accumulated. Throughout the year, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

In Kantale, the average length of the day in September is 12h and 10min.
On the first day of September in Kantale, Sri Lanka, sunrise is at 05:57 and sunset at 18:14. On the last day of the month, sunrise is at 05:54 and sunset at 17:57 +0530.

Sunshine

In September, the average sunshine is 10.9h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 7 transforms into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.