September weather forecastTalaimannar, Sri Lanka

Weather in September

The first month of the autumn, September, is still a warm month in Talaimannar, Sri Lanka, with temperature in the range of an average high of 29.9°C (85.8°F) and an average low of 27°C (80.6°F).

Temperature

The introduction of September sees an average high-temperature of a still warm 29.9°C (85.8°F), hardly deviating from August. The temperature in Talaimannar, Sri Lanka, during September nights demonstrates a small drop from the daytime highs, settling to an average of 27°C (80.6°F).

Heat index

For most parts of September, the heat index is estimated at a fiery hot 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In September, the average relative humidity in Talaimannar is 77%.

Rainfall

In Talaimannar, Sri Lanka, during September, the rain falls for 15.5 days and regularly aggregates up to 45mm (1.77") of precipitation. In Talaimannar, Sri Lanka, during the entire year, the rain falls for 181.2 days and collects up to 849mm (33.43") of precipitation.

Daylight

In Talaimannar, Sri Lanka, the average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 06:02 and sunset at 18:19. On the last day of the month, sunrise is at 05:59 and sunset at 18:02 +0530.

Sunshine

The average sunshine in September in Talaimannar is 9.7h.

UV index

The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Enhance your sun protection with tightly woven, yet airy clothing.