March weather forecast
Atalaia Velha, Brazil

The first month of the autumn, March, is still a hot month in Atalaia Velha, Brazil, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 25.8°C (78.4°F).

Temperature

In Atalaia Velha, March is the warmest month, with temperatures averaging a high of 30.8°C (87.4°F) and a low of 25.8°C (78.4°F).

Heat index

Throughout March, the heat index is calculated to be a sweltering 38°C (100.4°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The months with the lowest humidity in Atalaia Velha, Brazil, are January through March and December, with an average relative humidity of 73%.

Rainfall

In Atalaia Velha, during March, the rain falls for 10.6 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, there are 197.6 rainfall days, and 586mm (23.07") of precipitation is accumulated.

Daylight

In Atalaia Velha, the average length of the day in March is 12h and 10min.
On the first day of March in Atalaia Velha, sunrise is at 05:31 and sunset at 17:49. On the last day of the month, sunrise is at 05:32 and sunset at 17:32 -03.

Sunshine

March has the most sunshine of the year in Atalaia Velha, Brazil, with an average of 8.4h of sunshine.

UV index

January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index in Atalaia Velha. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 7 in March suggests the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.