September weather forecast
Anamaduwa, Sri Lanka

September, the first month of the autumn in Anamaduwa, is a tropical month, with an average temperature fluctuating between 26.5°C (79.7°F) and 30°C (86°F).

Temperature

Anamaduwa, Sri Lanka, records an average high-temperature of a tropical 30°C (86°F) as September arrives, nearly mirroring the previous month's climate. A mild drop to an average of 26.5°C (79.7°F) marks the nights during September.

Heat index

The heat index value for September is estimated at a sweltering 37°C (98.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. 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. 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 are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. 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. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Anamaduwa, in September, during 17.4 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Anamaduwa, during the entire year, the rain falls for 221.7 days and collects up to 1071mm (42.17") of precipitation.

Daylight

In Anamaduwa, the average length of the day in September is 12h and 10min.
On the first day of September in Anamaduwa, sunrise is at 06:01 and sunset at 18:17. On the last day of the month, sunrise is at 05:58 and sunset at 18:01 +0530.

Sunshine

In September, the average sunshine in Anamaduwa is 8.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Anamaduwa. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.