April weather forecast
Guajará-Mirim, Brazil

April is a hot autumn month in Guajará-Mirim, Brazil, with an average temperature varying between 30.6°C (87.1°F) and 21.8°C (71.2°F).

Temperature

Guajará-Mirim in April witnesses an average high-temperature of a tropical 30.6°C (87.1°F), indicating a slight variation from March's 29.8°C (85.6°F). Guajará-Mirim observes an average nighttime temperature of 21.8°C (71.2°F) during April.

Heat index

Throughout April, the heat index is computed to be a blisteringly hot 42°C (107.6°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess 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 86%.

Rainfall

In Guajará-Mirim, in April, during 24.8 rainfall days, 105mm (4.13") of precipitation is typically accumulated. Throughout the year, in Guajará-Mirim, there are 228.5 rainfall days, and 1170mm (46.06") of precipitation is accumulated.

Daylight

In April, the average length of the day in Guajará-Mirim, Brazil, is 11h and 52min.
On the first day of April, sunrise is at 06:25 and sunset at 18:24. On the last day of the month, sunrise is at 06:26 and sunset at 18:10 -04.

Sunshine

The average sunshine in April in Guajará-Mirim is 7h.

UV index

January through June, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In April, the UV index of 6 transforms into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.