October weather forecast
Santhiveli, Sri Lanka

October, the same as September, in Santhiveli, Sri Lanka, is another tropical autumn month, with an average temperature fluctuating between 31°C (87.8°F) and 25.1°C (77.2°F).

Temperature

The high-temperature average in October for Santhiveli is a still tropical 31°C (87.8°F), staying closely aligned with September's conditions. An average temperature of 25.1°C (77.2°F) marks the nights in Santhiveli, Sri Lanka, in October.

Heat index

For October, the heat index is calculated to be a blisteringly hot 40°C (104°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In October, the average relative humidity is 76%.

Rainfall

In October, the rain falls for 25.5 days. Throughout October, 177mm (6.97") of precipitation is accumulated. In Santhiveli, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.

Daylight

In Santhiveli, the average length of the day in October is 11h and 57min.
On the first day of the month, sunrise is at 05:51 and sunset at 17:54. On the last day of October, sunrise is at 05:51 and sunset at 17:42 +0530.

Sunshine

In Santhiveli, the average sunshine in October is 8.7h.

UV index

January through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 7 in October, converts into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.