September weather forecast
Gampola, Sri Lanka

September, the first month of the autumn in Gampola, is also a moderately hot month, with temperature in the range of an average low of 21.1°C (70°F) and an average high of 29.5°C (85.1°F).

Temperature

Gampola experiences a transition to a still moderately hot 29.5°C (85.1°F) in average high-temperatures with the arrival of September, not greatly differing from August's 29.2°C (84.6°F). Gampola anticipates an average minimum temperature of 21.1°C (70°F) in the month of September.

Heat index

For most parts of September, the heat index is calculated to be a fiery hot 35°C (95°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Gampola, Sri Lanka, in September, during 23.4 rainfall days, 118mm (4.65") of precipitation is typically accumulated. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

In Gampola, 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 05:55 and sunset at 17:59 +0530.

Sunshine

In Gampola, the average sunshine in September is 10.3h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.