September weather forecast
Akkaraipattu, Sri Lanka

The first month of the autumn, September, is also a hot month in Akkaraipattu, Sri Lanka, with temperature in the range of an average low of 25.7°C (78.3°F) and an average high of 31.8°C (89.2°F).

Temperature

With the onset of September, the average high-temperature stands at a still tropical 31.8°C (89.2°F), closely aligned with August's 32.3°C (90.1°F). Akkaraipattu's nights in September cool down to an average low-temperature of 25.7°C (78.3°F).

Heat index

The average heat index in September is estimated at a blistering 41°C (105.8°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. 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 gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Akkaraipattu, the average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 22 days. Throughout September, 81mm (3.19") of precipitation is accumulated. Throughout the year, there are 237.8 rainfall days, and 1259mm (49.57") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 05:54 and sunset at 18:10. On the last day of September, sunrise is at 05:50 and sunset at 17:54 +0530.

Sunshine

In Akkaraipattu, the average sunshine in September is 10.7h.

UV index

January through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.