October weather forecast
Dediyawala, Sri Lanka

October, like September, in Dediyawala, Sri Lanka, is another warm autumn month, with an average temperature varying between 25.5°C (77.9°F) and 29.6°C (85.3°F).

Temperature

The transition into October marks the average high-temperature at a still moderately hot 29.6°C (85.3°F), differing minimally from September's 28.8°C (83.8°F). October nighttime temperatures hover close to the daytime peak with an average of 25.5°C (77.9°F).

Heat index

The heat index value for October is computed to be a sweltering 36°C (96.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In October, the average relative humidity is 80%.

Rainfall

In Dediyawala, in October, during 25.2 rainfall days, 192mm (7.56") of precipitation is typically accumulated. Throughout the year, in Dediyawala, Sri Lanka, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.

Daylight

The average length of the day in October is 11h and 59min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:01. On the last day of October, sunrise is at 05:57 and sunset at 17:50 +0530.

Sunshine

In October, the average sunshine in Dediyawala is 7.9h.

UV index

The months with the highest UV index are January through April, July, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In October, the maximum UV index of 7 suggests these recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.