October weather forecast
Serra Preta, Brazil

October in Serra Preta, Brazil, is a hot spring month, with temperature in the range of an average low of 20.4°C (68.7°F) and an average high of 30.5°C (86.9°F).

Temperature

With the onset of October, Serra Preta's average high-temperature clocks in at a hot 30.5°C (86.9°F), showing a minor fluctuation from the previous month. Serra Preta experiences an average low-temperature reading of 20.4°C (68.7°F) throughout October.

Heat index

The heat index value during October is calculated to be a sweltering 37°C (98.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle 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 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in October in Serra Preta is 74%.

Rainfall

In Serra Preta, in October, it is raining for 18.4 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, there are 222.1 rainfall days, and 403mm (15.87") of precipitation is accumulated.

Daylight

The average length of the day in October in Serra Preta is 12h and 23min.
On the first day of October, sunrise is at 05:20 and sunset at 17:33. On the last day of the month, sunrise is at 05:04 and sunset at 17:37 -03.

Sunshine

The average sunshine in October is 6.4h.

UV index

In Serra Preta, the average daily maximum UV index in October is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during October leads to these instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.