September weather forecast
Talawatura, Sri Lanka

The first month of the autumn, September, is still a warm month in Talawatura, Sri Lanka, with an average temperature ranging between max 29.5°C (85.1°F) and min 21.1°C (70°F).

Temperature

The transition from August to September sees an average high-temperature of a still moderately hot 29.5°C (85.1°F), indicating a minor variance from the prior month. An average low-temperature of 21.1°C (70°F) is recorded during the nights in September in Talawatura, Sri Lanka.

Heat index

September's mean heat index is estimated at a very hot 35°C (95°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 are essentially critical for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In Talawatura, Sri Lanka, in September, it is raining for 23.4 days, with typically 118mm (4.65") of accumulated precipitation. In Talawatura, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

The average length of the day in September in Talawatura is 12h and 10min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:15. On the last day of September, in Talawatura, sunrise is at 05:55 and sunset at 17:59 +0530.

Sunshine

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

UV index

The months with the highest UV index in Talawatura 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 risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.