April weather forecast
Upanema, Brazil

April, like March, is another tropical autumn month in Upanema, Brazil, with an average temperature ranging between min 23.5°C (74.3°F) and max 33°C (91.4°F).

Temperature

The ushering in of April brings an average high-temperature of a still tropical 33°C (91.4°F), closely mirroring the 33.9°C (93°F) of March. During April, Upanema consistently records a temperature low averaging a moderately hot 23.5°C (74.3°F).

Heat index

The average heat index in April is estimated at a blazing hot 45°C (113°F). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

April is the most humid month in Upanema, with an average relative humidity of 73%.

Rainfall

In Upanema, during April, the rain falls for 17.2 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, in Upanema, there are 112.4 rainfall days, and 381mm (15") of precipitation is accumulated.

Daylight

The average length of the day in April is 11h and 59min.
On the first day of the month, sunrise is at 05:31 and sunset at 17:34. On the last day of April, sunrise is at 05:28 and sunset at 17:23 -03.

Sunshine

In April, the average sunshine is 8.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Upanema. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 7 during April, leads to the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.