April weather forecastVilhena, Brazil
April
Weather in April
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Vilhena, Brazil
- Average high temperature in April: 29°C
The warmest month (with the highest average high temperature) is September (34.1°C).
The month with the lowest average high temperature is February (27.3°C).
- Average low temperature in April: 20.2°C
The month with the highest average low temperature is October (21.4°C).
The coldest month (with the lowest average low temperature) is July (17.3°C).
Average pressure in April
Vilhena, Brazil
- Average pressure in April: 1011.8mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in April
Vilhena, Brazil
- Average wind speed in April: 4.3km/h
The windiest month (with the highest average wind speed) is August (5.3km/h).
The calmest month (with the lowest average wind speed) is March (4km/h).
Average humidity in April
Vilhena, Brazil
- Average humidity in April: 85%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (49%).
Average rainfall in April
Vilhena, Brazil
- Average rainfall in April: 129mm
The wettest month (with the highest rainfall) is December (266mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in April
Vilhena, Brazil
- Average rainfall days in April: 25.2 days
The month with the highest number of rainy days is January (29.8 days).
The month with the least rainy days is July (3.6 days).
Average daylight in April /
Average sunshine in April
Vilhena, Brazil
- Average daylight in April: 11h and 48min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in April: 6h and 0min
The months with the most sunshine are September and October (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in April
Vilhena, Brazil
- Average sunshine days in April: 4.3 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is February (0.5 days).
Average UV index in April
Vilhena, Brazil
- Average UV index in April: 6
The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).
Average cloud cover in April
Vilhena, Brazil
- Average cloud cover in April: 57
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in April
Vilhena, Brazil
- Average visibility in April: 7km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March and December (6km).
