April weather forecast
Princesa Isabel, Brazil

April, like March, is another tropical autumn month in Princesa Isabel, Brazil, with an average temperature varying between 31°C (87.8°F) and 19.9°C (67.8°F).

Temperature

April is marked by an average high-temperature of a still tropical 31°C (87.8°F), almost identical to the preceding month. An average low-temperature of 19.9°C (67.8°F) is recorded in the month of April in Princesa Isabel.

Heat index

For April, the heat index is evaluated at a sweltering 38°C (100.4°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Princesa Isabel, the average relative humidity in April is 72%.

Rainfall

In Princesa Isabel, during April, the rain falls for 18.9 days and regularly aggregates up to 72mm (2.83") of precipitation. Throughout the year, in Princesa Isabel, there are 140.8 rainfall days, and 430mm (16.93") of precipitation is accumulated.

Daylight

In Princesa Isabel, Brazil, the average length of the day in April is 11h and 56min.
On the first day of the month, sunrise is at 05:34 and sunset at 17:36. On the last day of April, sunrise is at 05:33 and sunset at 17:24 -03.

Sunshine

In April, the average sunshine is 7.9h.

UV index

The months with the lowest UV index are January, April through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during April leads to these instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.