October weather forecast
Kerawalapitiya, Sri Lanka

October in Kerawalapitiya, Sri Lanka, is a tropical autumn month, with temperature in the range of an average low of 25°C (77°F) and an average high of 30°C (86°F).

Temperature

The transition from September to October sees average high-temperatures adjusting to a hot 30°C (86°F), from a not significantly different 29.1°C (84.4°F). Kerawalapitiya's nighttime temperatures in October reveal a minimal variation from the daytime highs, averaging at a moderately hot 25°C (77°F).

Heat index

The average heat index in October is computed to be a very hot 38°C (100.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in October is 80%.

Rainfall

In Kerawalapitiya, in October, during 27 rainfall days, 237mm (9.33") of precipitation is typically accumulated. Throughout the year, in Kerawalapitiya, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

In October, the average length of the day in Kerawalapitiya is 11h and 58min.
On the first day of October, sunrise is at 05:58 and sunset at 18:01. On the last day of the month, sunrise is at 05:57 and sunset at 17:50 +0530.

Sunshine

The average sunshine in October in Kerawalapitiya, Sri Lanka, is 7.7h.

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 6 in October suggests the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.