October weather forecast
Nonagama, Sri Lanka

October, like September, is another tropical autumn month in Nonagama, Sri Lanka, with temperature in the range of an average high of 30°C (86°F) and an average low of 25.9°C (78.6°F).

Temperature

The commencement of October introduces an average high-temperature of a still hot 30°C (86°F), closely mirroring the preceding month. Nonagama welcomes an average low temperature of 25.9°C (78.6°F) in October, a gentle shift from the day's high.

Heat index

For most parts of October, the heat index is computed to be a very hot 37°C (98.6°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Nonagama, the average relative humidity in October is 77%.

Rainfall

In Nonagama, in October, during 22.5 rainfall days, 180mm (7.09") of precipitation is typically accumulated. Throughout the year, in Nonagama, there are 192.9 rainfall days, and 942mm (37.09") of precipitation is accumulated.

Daylight

The average length of the day in October is 11h and 59min.
On the first day of the month, sunrise is at 05:53 and sunset at 17:57. On the last day of October, sunrise is at 05:52 and sunset at 17:46 +0530.

Sunshine

In October, the average sunshine in Nonagama is 8.5h.

UV index

With an average maximum UV index of 6, October is the month with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 in October translates into this advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.