October weather forecast
Mendonça, Brazil

October, the same as September, in Mendonça, Brazil, is another hot spring month, with an average temperature ranging between max 31.8°C (89.2°F) and min 20.5°C (68.9°F).

Temperature

Mendonça records a slight change with October's average high-temperatures adjusting to a still hot 31.8°C (89.2°F) from September's 32.2°C (90°F). Mendonça observes an average nighttime low-temperature of 20.5°C (68.9°F) during the month of October.

Heat index

During October, the heat index is evaluated at a sweltering 38°C (100.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In October, the average relative humidity is 65%.

Rainfall

In Mendonça, in October, during 18.9 rainfall days, 121mm (4.76") of precipitation is typically accumulated. In Mendonça, during the entire year, the rain falls for 208.9 days and collects up to 1257mm (49.49") of precipitation.

Daylight

The average length of the day in October is 12h and 35min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:16. On the last day of October, sunrise is at 05:35 and sunset at 18:28 -03.

Sunshine

The average sunshine in October is 8.8h.

UV index

January, March through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 6 in October, converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.