March weather forecast
São Félix do Piauí, Brazil

March, the first month of the autumn in São Félix do Piauí, is also a hot month, with an average temperature fluctuating between 31.6°C (88.9°F) and 23°C (73.4°F).

Temperature

With the onset of March, the average high-temperature registers at a still tropical 31.6°C (88.9°F), subtly different from February's 31.7°C (89.1°F). Throughout the nights in March, São Félix do Piauí experiences an average low-temperature of 23°C (73.4°F).

Heat index

The heat index value during March is estimated at a scorching 43°C (109.4°F). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the highest humidity are March and April, with an average relative humidity of 81%.

Rainfall

March is the month with the most rainfall in São Félix do Piauí, Brazil. Rain falls for 29.3 days and accumulates 315mm (12.4") of precipitation.

Daylight

The average length of the day in March is 12h and 8min.
On the first day of the month, sunrise is at 05:54 and sunset at 18:07. On the last day of March, sunrise is at 05:50 and sunset at 17:53 -03.

Sunshine

In São Félix do Piauí, the average sunshine in March is 7.2h.

UV index

In São Félix do Piauí, the average daily maximum UV index in March is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 7 in March, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.