September weather forecast
Hembarawa, Sri Lanka

September, the first month of the autumn in Hembarawa, is still a hot month, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 31.2°C (88.2°F).

Temperature

The average high-temperature during September is a still hot 31.2°C (88.2°F), almost matching the conditions of the preceding month. Throughout the month of September, the nighttime temperature dips to an average of 22.3°C (72.1°F).

Heat index

The heat index in September is appraised at a torrid 39°C (102.2°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The months with the lowest humidity in Hembarawa are March and September, with an average relative humidity of 72%.

Rainfall

In Hembarawa, in September, during 15.2 rainfall days, 72mm (2.83") of precipitation is typically accumulated. Throughout the year, in Hembarawa, 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 05:58 and sunset at 18:13. On the last day of September, in Hembarawa, sunrise is at 05:54 and sunset at 17:57 +0530.

Sunshine

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

UV index

The months with the highest UV index in Hembarawa are March through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.