October weather forecast
Porto Real do Colégio, Brazil

October, like September, in Porto Real do Colégio, Brazil, is another warm spring month, with an average temperature fluctuating between 29.5°C (85.1°F) and 22.1°C (71.8°F).

Temperature

October's presence records an average high-temperature of a still moderately hot 29.5°C (85.1°F), closely mirroring September's climate. During October, Porto Real do Colégio observes a consistent average nighttime temperature of 22.1°C (71.8°F).

Heat index

For October, the heat index is evaluated at a very hot 35°C (95°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 extremely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In October, the average relative humidity in Porto Real do Colégio is 75%.

Rainfall

In Porto Real do Colégio, in October, during 18.6 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Porto Real do Colégio, during the entire year, the rain falls for 222.9 days and collects up to 509mm (20.04") of precipitation.

Daylight

The average length of the day in October is 12h and 20min.
On the first day of October in Porto Real do Colégio, sunrise is at 05:10 and sunset at 17:22. On the last day of the month, sunrise is at 04:56 and sunset at 17:25 -03.

Sunshine

In Porto Real do Colégio, the average sunshine in October is 7.6h.

UV index

January through March, October through December, with an average maximum UV index of 7, are months with the highest UV index in Porto Real do Colégio. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 7 in October leads to these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.