September weather forecast
Pamunugama, Sri Lanka

September, the first month of the autumn in Pamunugama, is still a warm month, with an average temperature varying between 28.8°C (83.8°F) and 25.2°C (77.4°F).

Temperature

Upon the onset of September, Pamunugama witnesses an average high-temperature of a still moderately hot 28.8°C (83.8°F), showing a close resemblance to the prior month. Pamunugama logs an average low-temperature of 25.2°C (77.4°F) during the nights of September, subtly lower than its daytime highs.

Heat index

For most parts of September, the heat index is computed to be a sweltering 35°C (95°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. 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 Pamunugama, the average relative humidity in September is 82%.

Rainfall

In Pamunugama, during September, the rain falls for 26.3 days and regularly aggregates up to 201mm (7.91") of precipitation. Throughout the year, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.

Daylight

In September, the average length of the day in Pamunugama is 12h and 10min.
On the first day of September, sunrise is at 06:03 and sunset at 18:17. On the last day of the month, sunrise is at 05:58 and sunset at 18:02 +0530.

Sunshine

In Pamunugama, the average sunshine in September is 7.6h.

UV index

January through April, July, September through December, 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 hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.