October weather forecast
Chavakachcheri, Sri Lanka

October, the same as September, is a moderately hot autumn month in Chavakachcheri, Sri Lanka, with an average temperature ranging between max 29.2°C (84.6°F) and min 27.7°C (81.9°F).

Temperature

With the onset of October, Chavakachcheri's average high-temperature clocks in at a still moderately hot 29.2°C (84.6°F), showing a minor fluctuation from the previous month. Chavakachcheri experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 27.7°C (81.9°F) throughout October.

Heat index

The heat index value for October is estimated at a sweltering 35°C (95°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in October is 77%.

Rainfall

The month with the most rainfall in Chavakachcheri is October, when the rain falls for 22.6 days and typically aggregates up to 191mm (7.52") of precipitation.

Daylight

The average length of the day in October is 11h and 55min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:00. On the last day of October, in Chavakachcheri, sunrise is at 05:59 and sunset at 17:46 +0530.

Sunshine

In October, the average sunshine is 8.5h.

UV index

January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Chavakachcheri. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in October leads to these recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.