September weather forecast
Kudamaduwa, Sri Lanka

September, the first month of the autumn in Kudamaduwa, is still a warm month, with an average temperature ranging between max 28.9°C (84°F) and min 25.2°C (77.4°F).

Temperature

Kudamaduwa experiences a subtle adjustment in high-temperatures to a still warm 28.9°C (84°F) with the onset of September, maintaining near parity with August's 28.6°C (83.5°F). Throughout September, Kudamaduwa's nights experience a slight temperature dip to a still warm 25.2°C (77.4°F).

Heat index

For most parts of September, the heat index is evaluated at a fiery hot 35°C (95°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Kudamaduwa, Sri Lanka, during September, the rain falls for 24.3 days and regularly aggregates up to 189mm (7.44") of precipitation. In Kudamaduwa, 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 is 12h and 10min.
On the first day of September, sunrise is at 06:02 and sunset at 18:17. On the last day of the month, sunrise is at 05:58 and sunset at 18:02 +0530.

Sunshine

In Kudamaduwa, 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. 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: An average maximum UV index of 7 in September leads to these recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.