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
May brings an average high-temperature of a still warm 27.2°C (81°F), showing a slight difference from April's 27.4°C (81.3°F). Rialma records an average nighttime low-temperature of 17.2°C (63°F) throughout May.Heat index
Throughout May, the heat index is evaluated at a hot 30°C (86°F). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
The average relative humidity in May is 78%.Rainfall
In Rialma, in May, during 14.1 rainfall days, 39mm (1.54") of precipitation is typically accumulated. Throughout the year, in Rialma, there are 219.6 rainfall days, and 1537mm (60.51") of precipitation is accumulated.Daylight
In Rialma, the average length of the day in May is 11h and 24min.On the first day of May, sunrise is at 06:28 and sunset at 18:01. On the last day of the month, sunrise is at 06:37 and sunset at 17:54 -03.
Sunshine
In Rialma, the average sunshine in May is 9.4h.UV index
In Rialma, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in May transforms into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Rialma?
What is the average humidity in May in Rialma?
How much does it rain in Rialma in May?
How many hours of daylight does Rialma have in May?
When is the sunrise / sunset in May in Rialma?
How many hours of sunshine does Rialma have in May?
What is the UV index intensity in May in Rialma?
Average temperature in May
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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
Rialma, 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).
