October weather forecast
Naranwala, Sri Lanka

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

Temperature

At the start of October, Naranwala's average high-temperature reaches a hot 30°C (86°F), subtly different from the preceding month. Maintaining close parity with daytime warmth, the average nocturnal temperature during October stays at a moderately hot 25°C (77°F).

Heat index

October's mean heat index is computed to be a sweltering 38°C (100.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In October, the average relative humidity is 80%.

Rainfall

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

Daylight

In Naranwala, the average length of the day in October is 11h and 58min.
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 17:49 +0530.

Sunshine

In Naranwala, the average sunshine in October is 7.7h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 during October translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.