October weather forecast
São Félix do Piauí, Brazil

October, the same as September, is another torrid spring month in São Félix do Piauí, Brazil, with an average temperature varying between 24.5°C (76.1°F) and 36.5°C (97.7°F).

Temperature

In October, São Félix do Piauí notes an average high-temperature of a still fiery hot 36.5°C (97.7°F), hardly different from the preceding month. Nighttime in October brings a stark departure from the daily high, resting at an average low-temperature of 24.5°C (76.1°F).

Heat index

The heat index in October is estimated at an extremely hot 44°C (111.2°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Realize that the values for the heat index are set for shaded places and light winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In São Félix do Piauí, the average relative humidity in October is 50%.

Rainfall

In October, in São Félix do Piauí, the rain falls for 11.9 days. Throughout October, 43mm (1.69") of precipitation is accumulated. In São Félix do Piauí, during the entire year, the rain falls for 220.8 days and collects up to 1560mm (61.42") of precipitation.

Daylight

In October, the average length of the day in São Félix do Piauí is 12h and 14min.
On the first day of the month, sunrise is at 05:33 and sunset at 17:42. On the last day of October, in São Félix do Piauí, sunrise is at 05:22 and sunset at 17:41 -03.

Sunshine

In October, the average sunshine in São Félix do Piauí is 9.2h.

UV index

The average daily maximum UV index in October is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 7 in October, converts into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Boost your sun resistance with garments that are densely woven yet spacious.