September weather forecast
Cheddikulam, Sri Lanka

The first month of the autumn, September, is still a tropical month in Cheddikulam, Sri Lanka, with an average temperature ranging between max 32.6°C (90.7°F) and min 24.8°C (76.6°F).

Temperature

In the transition from August to September, Cheddikulam reports an average high-temperature of a still tropical 32.6°C (90.7°F), indicating a close resemblance to the prior month. In the month of September, the average low-temperature usually rests at a moderately hot 24.8°C (76.6°F).

Heat index

The heat index value for September is computed to be a scorching 43°C (109.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The months with the lowest humidity in Cheddikulam are July through September, with an average relative humidity of 71%.

Rainfall

In Cheddikulam, in September, it is raining for 14 days, with typically 57mm (2.24") of accumulated precipitation. Throughout the year, in Cheddikulam, there are 199.1 rainfall days, and 893mm (35.16") of precipitation is accumulated.

Daylight

In Cheddikulam, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:17. On the last day of September, sunrise is at 05:57 and sunset at 18:00 +0530.

Sunshine

The average sunshine in September in Cheddikulam is 9.6h.

UV index

February 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 vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.