October weather forecast
Casa Nova, Brazil

October, the same as September, in Casa Nova, Brazil, is another hot spring month, with temperature in the range of an average high of 32.2°C (90°F) and an average low of 22.6°C (72.7°F).

Temperature

October's onset sees an average high-temperature of a still tropical 32.2°C (90°F), exhibiting a slight fluctuation from the previous month. In the month of October, an average of 22.6°C (72.7°F) marks the low-temperature in Casa Nova.

Heat index

In October, the heat index is estimated at a fiery hot 36°C (96.8°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Consider that heat index readings are for situations in the shade and light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of 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. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly relevant to babies and toddlers. 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.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The least humid month in Casa Nova is October, with an average relative humidity of 53%.

Rainfall

In Casa Nova, during October, the rain falls for 5.4 days and regularly aggregates up to 29mm (1.14") of precipitation. In Casa Nova, during the entire year, the rain falls for 107.5 days and collects up to 451mm (17.76") of precipitation.

Daylight

In Casa Nova, the average length of the day in October is 12h and 19min.
On the first day of the month, sunrise is at 05:27 and sunset at 17:39. On the last day of October, in Casa Nova, Brazil, sunrise is at 05:14 and sunset at 17:40 -03.

Sunshine

In October, the average sunshine is 8.9h.

UV index

January through April, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In October, the average maximum UV index of 7 translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.