September weather forecast
Pothuhera, Sri Lanka

The first month of the autumn, September, is still a tropical month in Pothuhera, Sri Lanka, with an average temperature ranging between min 22.3°C (72.1°F) and max 31.2°C (88.2°F).

Temperature

The advent of September reveals an average high-temperature of a still hot 31.2°C (88.2°F), showing minimal difference from the prior month. Pothuhera's average low-temperature during September nights is observed to be an agreeable 22.3°C (72.1°F).

Heat index

The heat index for September is calculated to be a sweltering 39°C (102.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. 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 particularly relevant to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

March and September, with an average relative humidity of 72%, are the least humid months.

Rainfall

In Pothuhera, in September, it is raining for 15.2 days, with typically 72mm (2.83") of accumulated precipitation. Throughout the year, in Pothuhera, Sri Lanka, there are 217.7 rainfall days, and 1165mm (45.87") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:16. On the last day of September, sunrise is at 05:56 and sunset at 18:00 +0530.

Sunshine

In September, the average sunshine in Pothuhera is 10.5h.

UV index

March through September, 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 risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.