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 snowfall in May
- Average snowfall 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
The shift from April to May is marked by a slight increase in the average high-temperature, moving from a comfortable 17.9°C (64.2°F) to a pleasant 21.8°C (71.2°F). The average temperature during May nights is registered at a fresh 10.2°C (50.4°F).Humidity
In Vale, the average relative humidity in May is 70%.Rainfall
In May, the rain falls for 10.9 days. Throughout May, 33mm (1.3") of precipitation is accumulated. In Vale, during the entire year, the rain falls for 127.7 days and collects up to 618mm (24.33") of precipitation.Snowfall
May through October and December are months without snowfall.Daylight
The average length of the day in May is 14h and 29min.On the first day of May, sunrise is at 06:30 and sunset at 20:30. On the last day of the month, sunrise is at 06:04 and sunset at 20:59 WEST.
Sunshine
The average sunshine in May is 10h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during May translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. 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 usual temperature for Vale in May?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May in Vale?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Vale, Portugal
- Average high temperature in May: 21.8°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (12°C).
- Average low temperature in May: 10.2°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (4.3°C).
Average pressure in May
Vale, Portugal
- Average pressure in May: 1016.3mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in May
Vale, Portugal
- Average wind speed in May: 7.9km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).
Average humidity in May
Vale, Portugal
- Average humidity in May: 70%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (62%).
Average rainfall in May
Vale, Portugal
- Average rainfall in May: 33mm
The wettest month (with the highest rainfall) is November (96mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in May
Vale, Portugal
- Average rainfall days in May: 10.9 days
The months with the highest number of rainy days are January and April (14.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in May
Vale, Portugal
- Average snowfall in May: 0mm
The months with the highest snowfall are January and March (2mm).
The months with the least snowfall are May, June, July, August, September, October and December (0mm).
Average snowfall days in May
Vale, Portugal
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January, February and March (0.3 days).
The months with the least snowfall days are May, June, July, August, September, October and December (0 days).
Average daylight in May /
Average sunshine in May
Vale, 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: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in May
Vale, Portugal
- Average sunshine days in May: 17.8 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in May
Vale, Portugal
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Vale, Portugal
- Average cloud cover in May: 32
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in May
Vale, Portugal
- Average visibility in May: 8km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
