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
Weather in May
Temperature
May's arrival sees a mild rise in the average high-temperature, transitioning from April's refreshing 17.7°C (63.9°F) to a pleasant 20.9°C (69.6°F). An average temperature of 12°C (53.6°F) is recorded during the nights in May.Humidity
In May, the average relative humidity in Rio Meão is 71%.Rainfall
In Rio Meão, in May, during 10.4 rainfall days, 35mm (1.38") of precipitation is typically accumulated. In Rio Meão, during the entire year, the rain falls for 126.3 days and collects up to 725mm (28.54") of precipitation.Daylight
In Rio Meão, the average length of the day in May is 14h and 29min.On the first day of May, sunrise is at 06:31 and sunset at 20:31. On the last day of the month, sunrise is at 06:04 and sunset at 20:59 WEST.
Sunshine
In Rio Meão, the average sunshine in May is 9.9h.UV index
In May, the average daily maximum UV index in Rio Meão is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 in May translates into these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Rio Meão in May?
What is the average humidity in May in Rio Meão?
How many days does it rain in May in Rio Meão?
How many hours of daylight does Rio Meão have in May?
When are sunrise and sunset in May in Rio Meão?
How long on average sun shines in May in Rio Meão?
What is the UV index reading in May in Rio Meão?
Average temperature in May
Rio Meão, Portugal
- Average high temperature in May: 20.9°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in May: 12°C
The month with the highest average low temperature is August (15.5°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).
Average pressure in May
Rio Meão, Portugal
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in May
Rio Meão, Portugal
- Average wind speed in May: 10km/h
The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in May
Rio Meão, Portugal
- Average humidity in May: 71%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (67%).
Average rainfall in May
Rio Meão, Portugal
- Average rainfall in May: 35mm
The wettest month (with the highest rainfall) is November (109mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in May
Rio Meão, Portugal
- Average rainfall days in May: 10.4 days
The month with the highest number of rainy days is November (15 days).
The month with the least rainy days is August (3.8 days).
Average daylight in May /
Average sunshine in May
Rio Meão, Portugal
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in May
Rio Meão, Portugal
- Average sunshine days in May: 19.3 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (13.6 days).
Average UV index in May
Rio Meão, Portugal
- Average UV index in May: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Rio Meão, Portugal
- Average cloud cover in May: 31
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in May
Rio Meão, Portugal
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Rio Meão, Portugal
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