Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
April
Weather in April
Temperature
April is the month when São Sebastião da Boa Vista experiences its coldest temperatures, averaging a high of 30.1°C (86.2°F) and a low of 23.2°C (73.8°F).Heat index
April's average heat index is estimated at a scorching 41°C (105.8°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.The heat index's values are generally associated with conditions in shade and light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. 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 particularly important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
April is the most humid month, with an average relative humidity of 90%.Rainfall
The month with the most rainfall in São Sebastião da Boa Vista, Brazil, is April, when the rain falls for 29.8 days and typically aggregates up to 329mm (12.95") of precipitation.Daylight
In April, the average length of the day is 12h and 4min.On the first day of the month, sunrise is at 06:18 and sunset at 18:24. On the last day of April, sunrise is at 06:13 and sunset at 18:16 -03.
Sunshine
In São Sebastião da Boa Vista, Brazil, the average sunshine in April is 6.6h.UV index
The months with the lowest UV index are January through April and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in April leads to these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in São Sebastião da Boa Vista?
How hot is April in São Sebastião da Boa Vista?
What is the most humid month in São Sebastião da Boa Vista?
What is the average humidity in April in São Sebastião da Boa Vista?
What is the rainiest month in São Sebastião da Boa Vista?
How many days does it rain in April in São Sebastião da Boa Vista?
How many hours of daylight does São Sebastião da Boa Vista have in April?
When are sunrise and sunset in April in São Sebastião da Boa Vista?
How long on average sun shines in April in São Sebastião da Boa Vista?
What is the month with the lowest UV index in São Sebastião da Boa Vista?
What is the UV index intensity in April in São Sebastião da Boa Vista?
Average temperature in April
São Sebastião da Boa Vista, Brazil
- Average high temperature in April: 30.1°C
The warmest month (with the highest average high temperature) is October (35°C).
The month with the lowest average high temperature is April (30.1°C).
- Average low temperature in April: 23.2°C
The month with the highest average low temperature is November (24.2°C).
The coldest month (with the lowest average low temperature) is July (22.3°C).
Average pressure in April
São Sebastião da Boa Vista, Brazil
- Average pressure in April: 1011mbar
The month with the highest atmospheric pressure is July (1012.6mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in April
São Sebastião da Boa Vista, Brazil
- Average wind speed in April: 4.9km/h
The windiest month (with the highest average wind speed) is October (7.6km/h).
The calmest months (with the lowest average wind speed) are April and May (4.9km/h).
Average humidity in April
São Sebastião da Boa Vista, Brazil
- Average humidity in April: 90%
The month with the highest relative humidity is April (90%).
The month with the lowest relative humidity is October (68%).
Average rainfall in April
São Sebastião da Boa Vista, Brazil
- Average rainfall in April: 329mm
The wettest month (with the highest rainfall) is April (329mm).
The driest month (with the least rainfall) is September (27mm).
Average rainfall days in April
São Sebastião da Boa Vista, Brazil
- Average rainfall days in April: 29.8 days
The month with the highest number of rainy days is March (30.5 days).
The month with the least rainy days is September (15.3 days).
Average daylight in April /
Average sunshine in April
São Sebastião da Boa Vista, Brazil
- Average daylight in April: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in April: 6h and 4min
The month with the most sunshine is November (Average sunshine: 10h and 6min).
The months with the least sunshine are February and March (Average sunshine: 6h and 24min).
Average sunshine days in April
São Sebastião da Boa Vista, Brazil
- Average sunshine days in April: 0.1 days
The month with the most sunshine days is August (13 days).
The months with the least sunshine days are February and April (0.1 days).
Average UV index in April
São Sebastião da Boa Vista, Brazil
- Average UV index in April: 6
The months with the highest UV index are May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April and December (UV index 6).
Average cloud cover in April
São Sebastião da Boa Vista, Brazil
- Average cloud cover in April: 65
The months with the most cloud cover are March and April (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
São Sebastião da Boa Vista, Brazil
- Average visibility in April: 6km
The months with the highest visibility are October and November (10km).
The months with the lowest visibility are March and April (6km).
