September weather forecast
Elagolla, Sri Lanka

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

Temperature

The advent of September denotes an average high-temperature of a still moderately hot 29.5°C (85.1°F), subtly different from August's 29.2°C (84.6°F). In Elagolla, the expected average low-temperature for September is an agreeable 21.1°C (70°F).

Heat index

For most parts of September, the heat index is calculated to be a sweltering 35°C (95°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
The metrics for the heat index are tailored for both shady environments and light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in September in Elagolla is 77%.

Rainfall

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

Daylight

In Elagolla, the average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 05:59 and sunset at 18:14. On the last day of the month, sunrise is at 05:54 and sunset at 17:58 +0530.

Sunshine

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

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.