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
The shift into April records an average high-temperature of a still moderately hot 27.4°C (81.3°F), subtly varied from March's 27.3°C (81.1°F). April nights observe an average temperature dip to an enjoyable 18.4°C (65.1°F).Heat index
During April, the heat index is appraised at a tropical 31°C (87.8°F). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance 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.
Humidity
In Rianápolis, the average relative humidity in April is 85%.Rainfall
In Rianápolis, in April, it is raining for 24.1 days, with typically 137mm (5.39") of accumulated precipitation. Throughout the year, there are 219.6 rainfall days, and 1537mm (60.51") of precipitation is accumulated.Daylight
In April, the average length of the day is 11h and 45min.On the first day of April in Rianápolis, sunrise is at 06:23 and sunset at 18:19. On the last day of the month, sunrise is at 06:28 and sunset at 18:01 -03.
Sunshine
In April, the average sunshine is 8.4h.UV index
In Rianápolis, the average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 6 in April transforms into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rianápolis in April?
What is the average humidity in April in Rianápolis?
How many days does it rain in April in Rianápolis?
How many hours of daylight does Rianápolis have in April?
When are sunrise and sunset in April in Rianápolis?
How long on average sun shines in April in Rianápolis?
What is the UV index intensity in April in Rianápolis?
Average temperature in April
Rianápolis, Brazil
- Average high temperature in April: 27.4°C
The warmest month (with the highest average high temperature) is September (33.5°C).
The month with the lowest average high temperature is January (27°C).
- Average low temperature in April: 18.4°C
The month with the highest average low temperature is October (21°C).
The coldest month (with the lowest average low temperature) is July (16.1°C).
Average pressure in April
Rianápolis, Brazil
- Average pressure in April: 1013.5mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in April
Rianápolis, Brazil
- Average wind speed in April: 5.7km/h
The windiest month (with the highest average wind speed) is August (8.3km/h).
The calmest month (with the lowest average wind speed) is March (5.2km/h).
Average humidity in April
Rianápolis, Brazil
- Average humidity in April: 85%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (40%).
Average rainfall in April
Rianápolis, Brazil
- Average rainfall in April: 137mm
The wettest month (with the highest rainfall) is November (266mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in April
Rianápolis, Brazil
- Average rainfall days in April: 24.1 days
The months with the highest number of rainy days are January and December (29.3 days).
The month with the least rainy days is August (1.3 days).
Average daylight in April /
Average sunshine in April
Rianápolis, Brazil
- Average daylight in April: 11h and 4min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in April: 8h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in April
Rianápolis, Brazil
- Average sunshine days in April: 4.9 days
The month with the most sunshine days is August (29 days).
The months with the least sunshine days are February and November (0.7 days).
Average UV index in April
Rianápolis, 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 February and December (UV index 5).
Average cloud cover in April
Rianápolis, Brazil
- Average cloud cover in April: 45
The month with the most cloud cover is December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in April
Rianápolis, Brazil
- Average visibility in April: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February and March (7km).
