September weather forecast
Pinnawala, Sri Lanka

September marks the commencement of the fall in Pinnawala, bringing with it cooler weather and more rainfall. The temperatures start to decline modestly, and the rainfall sees a significant uptick, registered at 182mm (7.17") for the month. Sunshine duration reduces further signifying the withdrawal of summer. Despite the reduction in temperatures and increase in rainfall, September offers a unique blend of mild weather conditions that enhance the beauty of Pinnawala.

Temperature

The commencement of September is characterized by an average high temperature of a still warm 27.1°C (80.8°F), bearing no significant change from August. During September, the temperature in Pinnawala, Sri Lanka, is averaged to a low of 18.7°C (65.7°F) at night.

Heat index

The heat index in September is computed to be a tropical 30°C (86°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Pinnawala, Sri Lanka, in September, during 25.5 rainfall days, 182mm (7.17") of precipitation is typically accumulated. In Pinnawala, during the entire year, the rain falls for 297.4 days and collects up to 2784mm (109.61") of precipitation.

Daylight

In Pinnawala, Sri Lanka, the average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 06:00 and sunset at 18:15. On the last day of the month, sunrise is at 05:56 and sunset at 18:00 +0530.

Sunshine

In September, the average sunshine is 9.5h.

UV index

February through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.