April weather forecast
Vilhena, Brazil

April, the same as March, is a moderately hot autumn month in Vilhena, Brazil, with an average temperature varying between 20.2°C (68.4°F) and 29°C (84.2°F).

Temperature

Vilhena experiences a minor change to a still moderately hot 29°C (84.2°F) in average high-temperature during April, closely reflecting March. Vilhena encounters a steady low-temperature average of 20.2°C (68.4°F) throughout the month of April.

Heat index

For April, the heat index is evaluated at a fiery hot 36°C (96.8°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', quantifies the warmth felt when relative humidity is considered. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. 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. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in April is 85%.

Rainfall

In Vilhena, in April, during 25.2 rainfall days, 129mm (5.08") of precipitation is typically accumulated. Throughout the year, there are 237.8 rainfall days, and 1557mm (61.3") of precipitation is accumulated.

Daylight

In April, the average length of the day is 11h and 49min.
On the first day of April in Vilhena, sunrise is at 06:05 and sunset at 18:03. On the last day of the month, sunrise is at 06:08 and sunset at 17:47 -04.

Sunshine

The average sunshine in April is 6h.

UV index

In April, the average daily maximum UV index in Vilhena is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in April transforms into this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.