March weather forecast
Açu, Brazil

The first month of the autumn, March, is still a hot month in Açu, Brazil, with an average temperature ranging between max 33.9°C (93°F) and min 23.9°C (75°F).

Temperature

The shift into March finds Açu at an average high-temperature of a still tropical 33.9°C (93°F), closely comparable to February's conditions. Nighttime temperatures in March average to a warm 23.9°C (75°F) in Açu.

Heat index

The average heat index in March is appraised at a life-threatening hot 46°C (114.8°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in March is 69%.

Rainfall

March is the month with the most rainfall in Açu, Brazil. Rain falls for 17.1 days and accumulates 92mm (3.62") of precipitation.

Daylight

In Açu, the average length of the day in March is 12h and 8min.
On the first day of March in Açu, sunrise is at 05:33 and sunset at 17:46. On the last day of the month, sunrise is at 05:29 and sunset at 17:33 -03.

Sunshine

March has the least sunshine of the year in Açu, with an average of 8.3h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Açu. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 7 in March transforms into the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.