March weather forecast and climate
Maceió, Brazil

The first month of the autumn, March, is also a hot month in Maceió, Brazil, with average temperature fluctuating between 30.2°C (86.4°F) and 22.7°C (72.9°F).

Temperature

In Maceió, the average high-temperature is essentially the same as in February - a still hot 30.2°C (86.4°F). In March, the average low-temperature is 22.7°C (72.9°F).

Heat index

The average heat index is evaluated at a sweltering 37.8°C (100°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, wind, clothing). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Maceió, the average relative humidity is 78.3%.

Rainfall

In March, the rain falls for 17 days. Throughout March, 194.5mm (7.66") of precipitation is accumulated. In Maceió, during the entire year, the rain falls for 185 days and collects up to 2070.7mm (81.52") of precipitation.

Sea temperature

Months with the warmest seawater are March and April, with an average sea temperature of 28.8°C (83.8°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In March, the average length of the day in Maceió, Brazil, is 12.1h.

Sunshine

The average sunshine in Maceió is 6.5h.

UV index

Months with the highest UV index in Maceió are January through April, September through December, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.