October weather forecast
Aruanã, Brazil

October, like September, is another tropical spring month in Aruanã, Brazil, with an average temperature ranging between max 34.3°C (93.7°F) and min 22.5°C (72.5°F).

Temperature

The advent of October sees the average high-temperature at a tropical 34.3°C (93.7°F), subtly shifted from September's 35.9°C (96.6°F). Aruanã experiences an average low-temperature of 22.5°C (72.5°F) in the month of October.

Heat index

In October, the average heat index is evaluated at a blisteringly hot 43°C (109.4°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In October, the average relative humidity is 61%.

Rainfall

In Aruanã, in October, it is raining for 19.1 days, with typically 72mm (2.83") of accumulated precipitation. In Aruanã, Brazil, during the entire year, the rain falls for 184.4 days and collects up to 657mm (25.87") of precipitation.

Daylight

In October, the average length of the day in Aruanã is 12h and 26min.
On the first day of the month, sunrise is at 06:06 and sunset at 18:21. On the last day of October, sunrise is at 05:48 and sunset at 18:27 -03.

Sunshine

In Aruanã, the average sunshine in October is 9.8h.

UV index

The months with the lowest UV index are January through July, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during October translates into the following directions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.