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
Weather in April
Temperature
The coldest months are April and June, with an average high-temperature of 29.8°C (85.6°F).Heat index
The heat index value during April is estimated at a torrid 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Riacho Frio, Brazil, the average relative humidity in April is 80%.Rainfall
In Riacho Frio, in April, it is raining for 16.1 days, with typically 65mm (2.56") of accumulated precipitation. In Riacho Frio, during the entire year, the rain falls for 134.3 days and collects up to 578mm (22.76") of precipitation.Daylight
The average length of the day in April in Riacho Frio is 11h and 53min.On the first day of April, sunrise is at 06:03 and sunset at 18:03. On the last day of the month, sunrise is at 06:04 and sunset at 17:49 -03.
Sunshine
With an average of 6.3h of sunshine, April has the least sunshine of the year.UV index
The months with the lowest UV index are January through July, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 6 in April suggests the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What month is the coldest in Riacho Frio?
How hot is it in Riacho Frio in April?
What is the average humidity in April in Riacho Frio?
How many days does it rain in April in Riacho Frio?
How many hours of daylight does Riacho Frio have in April?
What time are sunrise and sunset in April in Riacho Frio?
What is the month with the least sunshine in Riacho Frio?
How long on average sun shines in April in Riacho Frio?
What is the month with the lowest UV index in Riacho Frio?
What is the UV index intensity in April in Riacho Frio?
Average temperature in April
Riacho Frio, Brazil
- Average high temperature in April: 29.8°C
The warmest month (with the highest average high temperature) is October (35°C).
The months with the lowest average high temperature are April and June (29.8°C).
- Average low temperature in April: 19.3°C
The month with the highest average low temperature is October (22.2°C).
The coldest month (with the lowest average low temperature) is July (17.4°C).
Average pressure in April
Riacho Frio, Brazil
- Average pressure in April: 1012.6mbar
The month with the highest atmospheric pressure is July (1016.3mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in April
Riacho Frio, Brazil
- Average wind speed in April: 5.6km/h
The windiest month (with the highest average wind speed) is September (9.7km/h).
The calmest month (with the lowest average wind speed) is March (5.3km/h).
Average humidity in April
Riacho Frio, Brazil
- Average humidity in April: 80%
The months with the highest relative humidity are February and March (81%).
The month with the lowest relative humidity is September (40%).
Average rainfall in April
Riacho Frio, Brazil
- Average rainfall in April: 65mm
The wettest month (with the highest rainfall) is March (112mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days in April
Riacho Frio, Brazil
- Average rainfall days in April: 16.1 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (0.2 days).
Average daylight in April /
Average sunshine in April
Riacho Frio, Brazil
- Average daylight in April: 11h and 5min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in April: 6h and 2min
The month with the most sunshine is December (Average sunshine: 9h and 54min).
The month with the least sunshine is April (Average sunshine: 6h and 18min).
Average sunshine days in April
Riacho Frio, Brazil
- Average sunshine days in April: 10.9 days
The month with the most sunshine days is August (30.6 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in April
Riacho Frio, Brazil
- Average UV index in April: 6
The months with the highest UV index are August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, November and December (UV index 6).
Average cloud cover in April
Riacho Frio, Brazil
- Average cloud cover in April: 45
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in April
Riacho Frio, Brazil
- Average visibility in April: 8km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March and April (8km).
Riacho Frio, Brazil
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