September weather forecastNiripola, Sri Lanka

Weather in September

The first month of the autumn, September, is still a warm month in Niripola, Sri Lanka, with an average temperature ranging between max 29.1°C (84.4°F) and min 24.9°C (76.8°F).

Temperature

Niripola records a slight change with September's average high-temperatures adjusting to a still warm 29.1°C (84.4°F) from August's 28.9°C (84°F). Throughout the nights in September, Niripola notes an average low of 24.9°C (76.8°F), a small dip from the daytime peak.

Heat index

The heat index value for September is estimated at a sweltering 35°C (95°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Niripola, the average relative humidity in September is 81%.

Rainfall

In Niripola, in September, during 26.9 rainfall days, 206mm (8.11") of precipitation is typically accumulated. In Niripola, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:16. On the last day of September, sunrise is at 05:57 and sunset at 18:01 +0530.

Sunshine

The average sunshine in September in Niripola is 7.4h.

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 in Niripola. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.