September weather forecast
Hambantota, Sri Lanka

September signals a shift from the droughty weather pattern with a noticeable rise in rainfall from 30mm (1.18") to 48mm (1.89"). Significantly, the average temperatures do not undergo major changes. However, the increases in rainfall days and humidity percentage signal the arrival of the transitional monsoon season. The number of sunshine hours remains consistent, reflecting an optimistic weather outcome. The blend of sunshine and rains forms a unique weather pattern for the city.

Temperature

As August turns into September in Hambantota, Sri Lanka, the average high-temperatures rest at a still hot 30.1°C (86.2°F), showing a minor variation from the prior month. Hambantota experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 26°C (78.8°F) throughout September.

Heat index

September's heat index is calculated to be a sweltering 37°C (98.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Hambantota, in September, it is raining for 14.4 days, with typically 48mm (1.89") of accumulated precipitation. Throughout the year, in Hambantota, there are 192.9 rainfall days, and 942mm (37.09") of precipitation is accumulated.

Daylight

In September, the average length of the day in Hambantota is 12h and 9min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:12. On the last day of September, in Hambantota, sunrise is at 05:53 and sunset at 17:57 +0530.

Sunshine

The average sunshine in September in Hambantota is 10.7h.

UV index

The months with the highest UV index in Hambantota, Sri Lanka, are January through September, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.