March weather forecast
Porto Franco, Brazil

The first month of the autumn, March, is still a hot month in Porto Franco, Brazil, with an average temperature fluctuating between 30.7°C (87.3°F) and 22.3°C (72.1°F).

Temperature

Porto Franco experiences an average high-temperature of a still tropical 30.7°C (87.3°F) in March, subtly different from February's 30.2°C (86.4°F). Porto Franco witnesses an average low-temperature of 22.3°C (72.1°F) throughout the month of March.

Heat index

Throughout March, the heat index is computed to be a scorching 42°C (107.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The months with the highest humidity are February through April, with an average relative humidity of 85%.

Rainfall

March is the month with the most rainfall. Rain falls for 27.4 days and accumulates 172mm (6.77") of precipitation.

Daylight

The average length of the day in March in Porto Franco is 12h and 8min.
On the first day of March in Porto Franco, sunrise is at 06:15 and sunset at 18:28. On the last day of the month, sunrise is at 06:12 and sunset at 18:14 -03.

Sunshine

The average sunshine in March is 7.3h.

UV index

March, May, July through October and December, with an average maximum UV index of 7, are months with the highest UV index in Porto Franco. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 7 during March leads to these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.