October weather forecastSertânia, Brazil

Weather in October

October is a tropical spring month in Sertânia, Brazil, with an average temperature fluctuating between 30.6°C (87.1°F) and 18.5°C (65.3°F).

Temperature

The shift into October uncovers an average high-temperature of a hot 30.6°C (87.1°F), subtly different from the previous month. October in Sertânia presents a pronounced difference from daytime highs, with a consistent average low-temperature of 18.5°C (65.3°F).

Heat index

For October, the heat index is computed to be a very hot 35°C (95°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. 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 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for 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.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In October, the average relative humidity is 65%.

Rainfall

In October, in Sertânia, the rain falls for 7 days. Throughout October, 16mm (0.63") of precipitation is accumulated. Throughout the year, in Sertânia, there are 140.9 rainfall days, and 430mm (16.93") of precipitation is accumulated.

Daylight

In October, the average length of the day is 12h and 17min.
On the first day of the month, sunrise is at 05:13 and sunset at 17:23. On the last day of October, in Sertânia, sunrise is at 05:00 and sunset at 17:24 -03.

Sunshine

In Sertânia, the average sunshine in October is 9.1h.

UV index

In October, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in October converts into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.