May weather forecast
Arcos de Valdevez, Portugal

May

Weather in May

May, the last month of the spring in Arcos de Valdevez, is an agreeable month, with temperature in the range of an average low of 10.4°C (50.7°F) and an average high of 20.3°C (68.5°F).

Temperature

Arcos de Valdevez observes a slight ascent in average high-temperatures during May, adjusting from a refreshing 17.1°C (62.8°F) in April to an agreeable 20.3°C (68.5°F). The average nighttime temperature lowers to a cool 10.4°C (50.7°F) throughout May.

Humidity

The average relative humidity in May is 75%.

Rainfall

In Arcos de Valdevez, Portugal, during May, the rain falls for 11.1 days and regularly aggregates up to 48mm (1.89") of precipitation. Throughout the year, there are 145.4 rainfall days, and 998mm (39.29") of precipitation is accumulated.

Daylight

In May, the average length of the day is 14h and 34min.
On the first day of the month, sunrise is at 06:29 and sunset at 20:32. On the last day of May, sunrise is at 06:01 and sunset at 21:01 WEST.

Sunshine

In May, the average sunshine is 9.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 5 in May translates into this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What is the usual temperature for Arcos de Valdevez in May?
The average high-temperature, in May, in Arcos de Valdevez, is 20.3°C (68.5°F), while the average low-temperature is 10.4°C (50.7°F).
What is the average humidity in May?
The average relative humidity in May is 75%.
How many days does it rain in May?
In Arcos de Valdevez, in May, it is raining for 11.1 days, with typically 48mm (1.89") of accumulated precipitation.
What is the average length of the day in May in Arcos de Valdevez?
The average day length in May is 14h and 34min.
What time are sunrise and sunset in May?
On the first day of May, sunrise is at 06:29 and sunset at 20:32. On the last day of the month, sunrise is at 06:01 and sunset at 21:01 WEST.
How many hours of sunshine does Arcos de Valdevez have in May?
In Arcos de Valdevez, the average sunshine duration in May is 9.6h.
How high is the UV index in May?
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Arcos de Valdevez, Portugal
Average temperature in May
Arcos de Valdevez, Portugal
  • Average high temperature in May: 20.3°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (11.8°C).

  • Average low temperature in May: 10.4°C

The months with the highest average low temperature are July and August (14.4°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).

Average pressure in May - Arcos de Valdevez, Portugal
Average pressure in May
Arcos de Valdevez, Portugal
  • Average pressure in May: 1016.8mbar

The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in May - Arcos de Valdevez, Portugal
Average wind speed in May
Arcos de Valdevez, Portugal
  • Average wind speed in May: 9km/h

The windiest month (with the highest average wind speed) is February (10.3km/h).
The calmest month (with the lowest average wind speed) is September (7.8km/h).

Average humidity in May - Arcos de Valdevez, Portugal
Average humidity in May
Arcos de Valdevez, Portugal
  • Average humidity in May: 75%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are August and September (69%).

Average rainfall in May - Arcos de Valdevez, Portugal
Average rainfall in May
Arcos de Valdevez, Portugal
  • Average rainfall in May: 48mm

The wettest month (with the highest rainfall) is November (154mm).
The driest month (with the least rainfall) is July (11mm).

Average rainfall days in May - Arcos de Valdevez, Portugal
Average rainfall days in May
Arcos de Valdevez, Portugal
  • Average rainfall days in May: 11.1 days

The month with the highest number of rainy days is November (17.2 days).
The month with the least rainy days is August (5.4 days).

Average daylight in May / Average sunshine in May - Arcos de Valdevez, Portugal
Average daylight in May /
Average sunshine in May
Arcos de Valdevez, Portugal
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in May - Arcos de Valdevez, Portugal
Average sunshine days in May
Arcos de Valdevez, Portugal
  • Average sunshine days in May: 18.7 days

The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (11.7 days).

Average UV index in May - Arcos de Valdevez, Portugal
Average UV index in May
Arcos de Valdevez, 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, March, April, November and December (UV index 3).

Average cloud cover in May - Arcos de Valdevez, Portugal
Average cloud cover in May
Arcos de Valdevez, Portugal
  • Average cloud cover in May: 33

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 21).

Average visibility in May - Arcos de Valdevez, Portugal
Average visibility in May
Arcos de Valdevez, Portugal
  • Average visibility in May: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).

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