, the same as March
, is a moderately hot autumn month in Maceió
, with average temperature ranging between max 29.6°C (85.3°F) and min 22.5°C (72.5°F).
In April, the average high-temperature is essentially the same as in March - a moderately hot 29.6°C (85.3°F). In Maceió, in April, the average low-temperature is 22.5°C (72.5°F).
In April, the average heat index is evaluated at a very hot 36.9°C (98.4°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 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like wind, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. 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 particularly important for children. 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 cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.
The average relative humidity in April is 81.5%.
In Maceió, during April, the rain falls for 19 days and regularly aggregates up to 268.8mm (10.58") of precipitation. In Maceió, during the entire year, the rain falls for 185 days and collects up to 2070.7mm (81.52") of precipitation.
March and April, with an average sea temperature of 28.8°C (83.8°F), are months with the warmest seawater.Note
: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
The average length of the day is 11.9h.
In Maceió, Brazil, the average sunshine in April is 6.6h.
Months with the highest UV index are January
through April, September
, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from unsafe exposure to the UV radiation for ordinary individuals.Note
: The daily maximum UV index of 12 in April interpret into the following advice:
Take all required precautions, as unprotected skin and eyes 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.