March weather forecast
São Francisco do Piauí, Brazil

The first month of the autumn, March, is still a tropical month in São Francisco do Piauí, Brazil, with an average temperature varying between 31.6°C (88.9°F) and 22.4°C (72.3°F).

Temperature

As São Francisco do Piauí welcomes March, the average high-temperature records at a still tropical 31.6°C (88.9°F), marking an insignificant deviation from the prior month. São Francisco do Piauí records a mean low-temperature of 22.4°C (72.3°F) in March.

Heat index

In March, the average heat index is computed to be a scorching 42°C (107.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

March is the most humid month in São Francisco do Piauí, with an average relative humidity of 77%.

Rainfall

March is the month with the most rainfall. Rain falls for 27.6 days and accumulates 191mm (7.52") of precipitation.

Daylight

In March, the average length of the day in São Francisco do Piauí is 12h and 8min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:09. On the last day of March, in São Francisco do Piauí, sunrise is at 05:52 and sunset at 17:55 -03.

Sunshine

In March, the average sunshine in São Francisco do Piauí is 8h.

UV index

In São Francisco do Piauí, the average daily maximum UV index in March is 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In March, the maximum UV index of 7 translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.