September weather forecast
Bobella, Sri Lanka

September, the first month of the autumn in Bobella, is also a hot month, with an average temperature varying between 24.1°C (75.4°F) and 33.9°C (93°F).

Temperature

September's advent presents an average high-temperature of a still hot 33.9°C (93°F), indicating a slight variation from the conditions of the previous month. The average low-temperature, in September, is a moderately hot 24.1°C (75.4°F).

Heat index

September's heat index is computed to be a life-threatening hot 45°C (113°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. 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. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The months with the lowest humidity are June through September, with an average relative humidity of 67%.

Rainfall

In Bobella, in September, during 13.5 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Bobella, during the entire year, the rain falls for 196.8 days and collects up to 943mm (37.13") of precipitation.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 05:59 and sunset at 18:15. On the last day of the month, sunrise is at 05:55 and sunset at 17:59 +0530.

Sunshine

In September, the average sunshine is 10.9h.

UV index

February through October, 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 unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 7 in September leads to these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.