October weather forecast
Gehenuwala, Sri Lanka

October is a tropical autumn month in Gehenuwala, Sri Lanka, with an average temperature fluctuating between 30°C (86°F) and 25°C (77°F).

Temperature

Gehenuwala experiences a minor change to a tropical 30°C (86°F) in average high-temperature during October, closely reflecting September. A consistent average low-temperature of 25°C (77°F), with a minor variance from the daytime highs, is noted during the nights of October.

Heat index

The heat index value during October is calculated to be a sweltering 38°C (100.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in October is 80%.

Rainfall

In Gehenuwala, Sri Lanka, during October, the rain falls for 27 days and regularly aggregates up to 237mm (9.33") of precipitation. In Gehenuwala, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

In Gehenuwala, the average length of the day in October is 11h and 58min.
On the first day of October in Gehenuwala, Sri Lanka, sunrise is at 05:57 and sunset at 18:01. On the last day of the month, sunrise is at 05:56 and sunset at 17:49 +0530.

Sunshine

In Gehenuwala, the average sunshine in October 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In October, the maximum UV index of 6 suggests these recommendations:
Deter overexposure. Protecting against the sun's effects is essential. 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. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.