March weather forecast
Portel, Brazil

The first month of the autumn, March, is also a moderately hot month in Portel, Brazil, with an average temperature fluctuating between 29.9°C (85.8°F) and 23°C (73.4°F).

Temperature

Portel's coldest period falls in March and April, when the average high-temperatures ascend to 29.9°C (85.8°F).

Heat index

The heat index value for March is computed to be an extremely hot 41°C (105.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild 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 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. 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. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In March, the average relative humidity is 91%.

Rainfall

The month with the most rainfall is March, when the rain falls for 29.8 days and typically aggregates up to 245mm (9.65") of precipitation.

Daylight

In Portel, the average length of the day in March is 12h and 7min.
On the first day of the month, sunrise is at 06:31 and sunset at 18:39. On the last day of March, in Portel, sunrise is at 06:24 and sunset at 18:30 -03.

Sunshine

With an average of 5.5h of sunshine, March has the least sunshine of the year.

UV index

The months with the lowest UV index in Portel are January through April and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in March translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.