October weather forecast
Deniyaya, Sri Lanka

October, like September, in Deniyaya, Sri Lanka, is another warm autumn month, with an average temperature fluctuating between 20.8°C (69.4°F) and 28.5°C (83.3°F).

Temperature

Deniyaya starts October with an average high-temperature of a still warm 28.5°C (83.3°F), a minor shift from September's 27.5°C (81.5°F). During the nights in October, Deniyaya experiences a consistent average temperature of 20.8°C (69.4°F).

Heat index

The heat index value for October is calculated to be a very hot 35°C (95°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Deniyaya, the average relative humidity in October is 86%.

Rainfall

The month with the most rainfall in Deniyaya, Sri Lanka, is October, when the rain falls for 28.5 days and typically aggregates up to 357mm (14.06") of precipitation.

Daylight

In October, the average length of the day is 11h and 59min.
On the first day of October in Deniyaya, Sri Lanka, sunrise is at 05:55 and sunset at 17:59. On the last day of the month, sunrise is at 05:54 and sunset at 17:48 +0530.

Sunshine

In October, the average sunshine is 7.3h.

UV index

The months with the lowest UV index in Deniyaya, Sri Lanka, are September and October, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 5 during October morphs into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.