September weather forecast
Kuliyapitiya, Sri Lanka

The weather in September witnesses a significant decrease in rainfall to 153mm (6.02"), bringing a decline in the intensity of the monsoon season. As the heavy rains recede, the flora around Kuliyapitiya begins to flourish, beautifying the landscapes. The temperatures and the daylight hours remain closely consistent with those of August. Despite the lingering humidity, the general weather is becoming more pleasant and favourable for exploration. September, blending the receding rains with the persistent tropical warmth, offers an engaging experience of Kuliyapitiya.

Temperature

The arrival of September sees an average high-temperature of a still warm 29.5°C (85.1°F), hardly diverging from August's 29.3°C (84.7°F). The nighttime temperature in September experiences a minor dip, averaging a still moderately hot 25.2°C (77.4°F).

Heat index

In September, the heat index is estimated at a sweltering 36°C (96.8°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In September, the average relative humidity is 81%.

Rainfall

In Kuliyapitiya, during September, the rain falls for 24.4 days and regularly aggregates up to 153mm (6.02") of precipitation. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

In September, the average length of the day 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 05:57 and sunset at 18:01 +0530.

Sunshine

In Kuliyapitiya, the average sunshine in September is 7.7h.

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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.