October weather forecast
Nonagama, Sri Lanka

October, the same as September, in Nonagama, Sri Lanka, is a hot autumn month, with an average temperature ranging between max 30°C (86°F) and min 25.9°C (78.6°F).

Temperature

Transitioning from September to October, Nonagama observes an average high-temperature of a still hot 30°C (86°F), differing subtly from the previous month. In Nonagama, the month of October records an average minimum temperature of 25.9°C (78.6°F), a slight dip from the daily highs.

Heat index

During October, the heat index is computed to be a very hot 37°C (98.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

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

Rainfall

In Nonagama, in October, it is raining for 22.5 days, with typically 180mm (7.09") of accumulated precipitation. In Nonagama, during the entire year, the rain falls for 192.9 days and collects up to 942mm (37.09") of precipitation.

Daylight

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

Sunshine

The average sunshine in October is 8.5h.

UV index

The month with the lowest UV index is October, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in October interprets into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.