September weather forecastIdama, Sri Lanka

Weather in September

September, the first month of the autumn in Idama, is also a moderately hot month, with temperature in the range of an average low of 25.2°C (77.4°F) and an average high of 28.8°C (83.8°F).

Temperature

The transition into September marks the average high-temperature at a still warm 28.8°C (83.8°F), differing minimally from August's 28.6°C (83.5°F). Idama records a mild decrease in temperature during the nights of September, averaging a still warm 25.2°C (77.4°F).

Heat index

For September, the heat index is appraised at a very hot 35°C (95°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital 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.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. 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. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Idama, during September, the rain falls for 26.3 days and regularly aggregates up to 201mm (7.91") of precipitation. In Idama, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Daylight

In Idama, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:03 and sunset at 18:17. On the last day of September, sunrise is at 05:58 and sunset at 18:02 +0530.

Sunshine

The average sunshine in September is 7.6h.

UV index

The months with the highest UV index are January through April, July, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 7 in September transforms into this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.