October weather forecastMachacalis, Brazil

Weather in October

October, the same as September, is another warm spring month in Machacalis, Brazil, with temperature in the range of an average low of 19.5°C (67.1°F) and an average high of 29.3°C (84.7°F).

Temperature

With October's advent, Machacalis sees an average high-temperature of a still warm 29.3°C (84.7°F), subtly shifted from September's 28.5°C (83.3°F). An average low-temperature of 19.5°C (67.1°F) is noted during the nights in October.

Heat index

During October, the heat index is calculated to be a very hot 35°C (95°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. 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', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in October in Machacalis is 76%.

Rainfall

In Machacalis, during October, the rain falls for 17.8 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, in Machacalis, there are 235.6 rainfall days, and 801mm (31.54") of precipitation is accumulated.

Daylight

In October, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 05:24 and sunset at 17:40. On the last day of October, in Machacalis, sunrise is at 05:04 and sunset at 17:48 -03.

Sunshine

The month with the least sunshine is October, with an average of 6.6h of sunshine.

UV index

The months with the highest UV index are January through June, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in October leads to these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.