October weather forecastHanwella, Sri Lanka

Weather in October

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

Temperature

As October unfolds, the average high-temperature reaches a tropical 30°C (86°F), hinting at a slight fluctuation from the previous month. Hanwella registers a gentle descent to an average nighttime low of 25°C (77°F) in October from its daytime highs.

Heat index

Throughout October, the heat index is calculated to be a torrid 38°C (100.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Hanwella, the average relative humidity in October is 80%.

Rainfall

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

Daylight

In Hanwella, Sri Lanka, the average length of the day in October is 11h and 58min.
On the first day of October in Hanwella, 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 Hanwella, 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 threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during October translates into these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.