September weather forecast
Brahmanagama, Sri Lanka

September, the first month of the autumn in Brahmanagama, is also a moderately hot month, with an average temperature fluctuating between 28.9°C (84°F) and 25.2°C (77.4°F).

Temperature

Brahmanagama registers an average high-temperature of a still moderately hot 28.9°C (84°F) with the arrival of September, showing minor deviation from the preceding month. In September, a low-temperature average of 25.2°C (77.4°F) is characteristic of Brahmanagama, marking a minor shift from daytime temperatures.

Heat index

The heat index value for September is calculated to be a torrid 35°C (95°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. 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. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In Brahmanagama, the average relative humidity in September is 82%.

Rainfall

In Brahmanagama, Sri Lanka, in September, it is raining for 24.3 days, with typically 189mm (7.44") of accumulated precipitation. In Brahmanagama, during the entire year, the rain falls for 272.3 days and collects up to 2039mm (80.28") of precipitation.

Daylight

The average length of the day in September in Brahmanagama is 12h and 10min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:17. On the last day of September, sunrise is at 05:57 and sunset at 18:01 +0530.

Sunshine

In Brahmanagama, Sri Lanka, the average sunshine in September is 7.5h.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Brahmanagama. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.