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 sea temperature 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
Weather in May
Temperature
May's commencement in Rio de Janeiro, Brazil, is accompanied by an average high-temperature of a still moderately hot 25.2°C (77.4°F), diverging marginally from April's 26.8°C (80.2°F). Rio de Janeiro's nighttime temperature during May is consistently averaged at an enjoyable 19.7°C (67.5°F).Humidity
In Rio de Janeiro, the average relative humidity in May is 80%.Rainfall
In May, in Rio de Janeiro, the rain falls for 12.8 days. Throughout May, 51mm (2.01") of precipitation is accumulated. Throughout the year, there are 192.5 rainfall days, and 812mm (31.97") of precipitation is accumulated.Sea temperature
In Rio de Janeiro, Brazil, the average seawater temperature in May is 24.3°C (75.7°F).Note: If cold is not your friend, swimming at 24.3°C (75.7°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.
Daylight
In May, the average length of the day in Rio de Janeiro is 11h and 1min.On the first day of the month, sunrise is at 06:12 and sunset at 17:26. On the last day of May, in Rio de Janeiro, sunrise is at 06:25 and sunset at 17:15 -03.
Sunshine
The average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index in Rio de Janeiro is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! UV strength is notably upped by the reflection of sand and water.
Frequently asked questions
What is the usual temperature for Rio de Janeiro in May?
What is the average humidity in May in Rio de Janeiro?
How many days does it rain in May in Rio de Janeiro?
What is the sea temperature in May in Rio de Janeiro?
What is the average length of the day in May in Rio de Janeiro?
What time are sunrise and sunset in May in Rio de Janeiro?
How long on average sun shines in May in Rio de Janeiro?
How high is the UV index in May in Rio de Janeiro?
Average temperature in May
Rio de Janeiro, Brazil
- Average high temperature in May: 25.2°C
The warmest month (with the highest average high temperature) is February (29.7°C).
The month with the lowest average high temperature is July (24°C).
- Average low temperature in May: 19.7°C
The month with the highest average low temperature is January (23.7°C).
The coldest month (with the lowest average low temperature) is August (18.5°C).
Average pressure in May
Rio de Janeiro, Brazil
- Average pressure in May: 1017.6mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).
Average wind speed in May
Rio de Janeiro, Brazil
- Average wind speed in May: 9.5km/h
The windiest months (with the highest average wind speed) are August and September (11.3km/h).
The calmest month (with the lowest average wind speed) is March (8.7km/h).
Average humidity in May
Rio de Janeiro, Brazil
- Average humidity in May: 80%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
Rio de Janeiro, Brazil
- Average rainfall in May: 51mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in May
Rio de Janeiro, Brazil
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is March (22.7 days).
The month with the least rainy days is July (9.3 days).
Average sea temperature in May
Rio de Janeiro, Brazil
- Average sea temperature in May: 24.3°C
The best month for swimming (with the highest average sea temperature) is March (25.8°C).
The coldest month (with the lowest average sea temperature) is September (21.6°C).
Average daylight in May /
Average sunshine in May
Rio de Janeiro, Brazil
- Average daylight in May: 11h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is February (Average sunshine: 8h and 48min).
The month with the least sunshine is October (Average sunshine: 7h and 30min).
Average sunshine days in May
Rio de Janeiro, Brazil
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is December (4.8 days).
Average UV index in May
Rio de Janeiro, Brazil
- Average UV index in May: 6
The month with the highest UV index is January (UV index 7).
The month with the lowest UV index is September (UV index 5).
Average cloud cover in May
Rio de Janeiro, Brazil
- Average cloud cover in May: 31
The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 28).
Average visibility in May
Rio de Janeiro, Brazil
- Average visibility in May: 10km
The months with the highest visibility are February, May, June, July, August and September (10km).
The months with the lowest visibility are January, March, April, October, November and December (9km).
Rio de Janeiro, Brazil
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