April weather forecast
Japomirim, Brazil

April, like March, in Japomirim, Brazil, is a moderately hot autumn month, with temperature in the range of an average low of 19.3°C (66.7°F) and an average high of 29.3°C (84.7°F).

Temperature

Japomirim, Brazil, experiences a subtle adjustment in high-temperatures to a warm 29.3°C (84.7°F) with the onset of April, maintaining near parity with March's 30.8°C (87.4°F). In Japomirim, April is marked by an average low-temperature of 19.3°C (66.7°F).

Heat index

For most parts of April, the heat index is computed to be a torrid 37°C (98.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in April is 85%.

Rainfall

In Japomirim, in April, during 20.6 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, in Japomirim, Brazil, there are 241.8 rainfall days, and 524mm (20.63") of precipitation is accumulated.

Daylight

In April, the average length of the day is 11h and 47min.
On the first day of the month, sunrise is at 05:44 and sunset at 17:41. On the last day of April, sunrise is at 05:48 and sunset at 17:24 -03.

Sunshine

In Japomirim, the average sunshine in April is 5.3h.

UV index

January through May, September through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in April interprets into the following advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.