October weather forecast
Serrinha, Brazil

October in Serrinha, Brazil, is a tropical spring month, with an average temperature ranging between min 20°C (68°F) and max 30.7°C (87.3°F).

Temperature

The shift from September to October is characterized by an average high-temperature of a tropical 30.7°C (87.3°F), not significantly different from the 29.3°C (84.7°F) of September. In Serrinha, an average low-temperature of 20°C (68°F) is recorded during October nights.

Heat index

In October, the heat index is appraised at a fiery hot 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. 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.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In October, the average relative humidity in Serrinha is 72%.

Rainfall

In October, in Serrinha, Brazil, the rain falls for 13.1 days. Throughout October, 26mm (1.02") of precipitation is accumulated. In Serrinha, during the entire year, the rain falls for 176.7 days and collects up to 347mm (13.66") of precipitation.

Daylight

The average length of the day in October is 12h and 22min.
On the first day of October in Serrinha, sunrise is at 05:19 and sunset at 17:31. On the last day of the month, sunrise is at 05:03 and sunset at 17:35 -03.

Sunshine

In October, the average sunshine is 6.5h.

UV index

In Serrinha, the average daily maximum UV index in October is 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 UV index of 6 in October transforms into this advice:
Deter overexposure. Protecting against the sun's effects 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun.