October weather forecastRianápolis, Brazil

Weather in October

October, the same as September, in Rianápolis, Brazil, is another hot spring month, with an average temperature ranging between max 31.5°C (88.7°F) and min 21°C (69.8°F).

Temperature

Rianápolis records an average high-temperature of a still hot 31.5°C (88.7°F) in October, closely mirroring the climate of the previous month. Rianápolis records an average low-temperature of 21°C (69.8°F) throughout the month of October.

Heat index

The heat index value for October is appraised at a fiery hot 36°C (96.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 are quite important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. 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 61%.

Rainfall

In Rianápolis, Brazil, in October, it is raining for 21.5 days, with typically 156mm (6.14") of accumulated precipitation. In Rianápolis, during the entire year, the rain falls for 219.6 days and collects up to 1537mm (60.51") of precipitation.

Daylight

In October, the average length of the day in Rianápolis, Brazil, is 12h and 27min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:14. On the last day of October, sunrise is at 05:41 and sunset at 18:21 -03.

Sunshine

In Rianápolis, the average sunshine in October is 9h.

UV index

The average daily maximum UV index in October in Rianápolis is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 6 in October leads to these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.