September weather forecast
Handaganawa, Sri Lanka

September, the first month of the autumn in Handaganawa, is still a warm month, with an average temperature varying between 21.1°C (70°F) and 29.5°C (85.1°F).

Temperature

September observes an average high-temperature of a still warm 29.5°C (85.1°F), marking an insignificant difference from August's 29.2°C (84.6°F). An average low-temperature of 21.1°C (70°F) is noted in Handaganawa during the month of September.

Heat index

In September, the average heat index is appraised at a torrid 35°C (95°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

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

Rainfall

In Handaganawa, Sri Lanka, during September, the rain falls for 23.4 days and regularly aggregates up to 118mm (4.65") of precipitation. In Handaganawa, 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 is 12h and 10min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:13. On the last day of September, sunrise is at 05:54 and sunset at 17:57 +0530.

Sunshine

In September, the average sunshine in Handaganawa, Sri Lanka, is 10.3h.

UV index

The months with the highest UV index in Handaganawa 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 threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.