September weather forecast
Pussella, Sri Lanka

The first month of the autumn, September, is also a hot month in Pussella, Sri Lanka, with an average temperature fluctuating between 22.3°C (72.1°F) and 31.2°C (88.2°F).

Temperature

On the advent of September, Pussella's average high-temperature exhibits a minor adjustment to a still tropical 31.2°C (88.2°F) from August's 30.8°C (87.4°F). An average nighttime temperature of 22.3°C (72.1°F) is witnessed throughout September.

Heat index

The heat index value for September is estimated at a very hot 39°C (102.2°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. 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', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

March and September, with an average relative humidity of 72%, are the least humid months.

Rainfall

In September, in Pussella, the rain falls for 15.2 days. Throughout September, 72mm (2.83") of precipitation is accumulated. In Pussella, Sri Lanka, during the entire year, the rain falls for 217.7 days and collects up to 1165mm (45.87") of precipitation.

Daylight

In September, the average length of the day 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, sunrise is at 05:56 and sunset at 17:59 +0530.

Sunshine

In September, the average sunshine is 10.5h.

UV index

March through September, 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 risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 7 during September leads to these advisories:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.