October weather forecast
Vankalai, Sri Lanka

October is a tropical autumn month in Vankalai, Sri Lanka, with an average temperature varying between 30°C (86°F) and 26.6°C (79.9°F).

Temperature

Vankalai experiences a transition to a tropical 30°C (86°F) in average high-temperatures with the arrival of October, not greatly differing from September's 29.9°C (85.8°F). Vankalai's October nights exhibit a subtle drop in temperature, averaging at a moderately hot 26.6°C (79.9°F), closely aligned with the daytime highs.

Heat index

For most parts of October, the heat index is calculated to be a very hot 37°C (98.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Vankalai, the average relative humidity in October is 77%.

Rainfall

In Vankalai, in October, during 23.8 rainfall days, 174mm (6.85") of precipitation is typically accumulated. In Vankalai, during the entire year, the rain falls for 181.2 days and collects up to 849mm (33.43") of precipitation.

Daylight

In October, the average length of the day in Vankalai is 11h and 56min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:01. On the last day of October, sunrise is at 05:59 and sunset at 17:48 +0530.

Sunshine

In Vankalai, the average sunshine in October is 8.5h.

UV index

January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Vankalai. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 7 during October morphs into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.