September weather forecast
Kadugannawa, Sri Lanka

September, the first month of the autumn in Kadugannawa, is also a moderately hot month, with temperature in the range of an average low of 21.1°C (70°F) and an average high of 29.5°C (85.1°F).

Temperature

The onset of September manifests an average high-temperature of a still warm 29.5°C (85.1°F), demonstrating a minor variation from the preceding month. In September, Kadugannawa experiences a temperature dip to an average of 21.1°C (70°F) at night.

Heat index

During September, the heat index is estimated at a sweltering 35°C (95°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In September, the average relative humidity in Kadugannawa is 77%.

Rainfall

In Kadugannawa, during September, the rain falls for 23.4 days and regularly aggregates up to 118mm (4.65") of precipitation. Throughout the year, in Kadugannawa, Sri Lanka, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

In September, the average length of the day in Kadugannawa 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, in Kadugannawa, sunrise is at 05:55 and sunset at 17:59 +0530.

Sunshine

In September, the average sunshine is 10.3h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 in September translates into this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.