April weather forecast
Iaçu, Brazil

April, the same as March, in Iaçu, Brazil, is another hot autumn month, with an average temperature fluctuating between 20.4°C (68.7°F) and 30.7°C (87.3°F).

Temperature

Transitioning into April, Iaçu experiences an average high-temperature of a still tropical 30.7°C (87.3°F), marking a minor shift from the preceding month. Throughout April, a steady low-temperature average of 20.4°C (68.7°F) is noted.

Heat index

For April, the heat index is computed to be a fiery hot 39°C (102.2°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Note that heat index values are valued for light wind and location in the shade. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in April is 77%.

Rainfall

In Iaçu, during April, the rain falls for 18.6 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, there are 185.3 rainfall days, and 502mm (19.76") of precipitation is accumulated.

Daylight

The average length of the day in April is 11h and 49min.
On the first day of April, sunrise is at 05:45 and sunset at 17:43. On the last day of the month, sunrise is at 05:48 and sunset at 17:27 -03.

Sunshine

In April, the average sunshine is 5.8h.

UV index

In Iaçu, the average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 6 in April transforms into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.