Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
Transitioning into May, Rianápolis records an average high-temperature of a still moderately hot 27.2°C (81°F), almost identical to April's 27.4°C (81.3°F). During May, the temperature is averaged to a low of 17.2°C (63°F) at night.Heat index
For May, the heat index is appraised at a tropical 30°C (86°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Heat index readings emphasize conditions of light breezes and shaded spots. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in May in Rianápolis, Brazil, is 78%.Rainfall
In Rianápolis, in May, it is raining for 14.1 days, with typically 39mm (1.54") of accumulated precipitation. In Rianápolis, during the entire year, the rain falls for 219.6 days and collects up to 1537mm (60.51") of precipitation.Daylight
The average length of the day in May in Rianápolis is 11h and 24min.On the first day of the month, sunrise is at 06:28 and sunset at 18:01. On the last day of May, sunrise is at 06:37 and sunset at 17:53 -03.
Sunshine
In May, the average sunshine is 9.4h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rianápolis in May?
What is the average humidity in May in Rianápolis?
How much does it rain in Rianápolis in May?
How many hours of daylight does Rianápolis have in May?
When is the sunrise / sunset in May in Rianápolis?
How long on average sun shines in May in Rianápolis?
How high is the UV index in May in Rianápolis?
Average temperature in May
Rianápolis, Brazil
- Average high temperature in May: 27.2°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 May: 17.2°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 May
Rianápolis, Brazil
- Average pressure in May: 1015.1mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in May
Rianápolis, Brazil
- Average wind speed in May: 6.4km/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 May
Rianápolis, Brazil
- Average humidity in May: 78%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (40%).
Average rainfall in May
Rianápolis, Brazil
- Average rainfall in May: 39mm
The wettest month (with the highest rainfall) is November (266mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
Rianápolis, Brazil
- Average rainfall days in May: 14.1 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 May /
Average sunshine in May
Rianápolis, Brazil
- Average daylight in May: 11h and 2min
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 May: 9h 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 May
Rianápolis, Brazil
- Average sunshine days in May: 14.9 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 May
Rianápolis, Brazil
- Average UV index in May: 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 May
Rianápolis, Brazil
- Average cloud cover in May: 31
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 May
Rianápolis, Brazil
- Average visibility in May: 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).
