May weather forecast and climate
Vale das Velhas, Portugal

Weather in May

May, the last month of the spring, in Vale das Velhas, is an agreeable month, with average temperature ranging between min 11.8°C (53.2°F) and max 22°C (71.6°F).

Temperature

In Vale das Velhas, the average high-temperature in May marginally rises, from an enjoyable 18.4°C (65.1°F) in April, to a pleasant 22°C (71.6°F). In Vale das Velhas, Portugal, in May, the average low-temperature is 11.8°C (53.2°F).

Humidity

In May, the average relative humidity in Vale das Velhas is 72%.

Rainfall

In Vale das Velhas, during 6.2 rainfall days, 11mm (0.43") of precipitation is typically accumulated. In Vale das Velhas, during the entire year, the rain falls for 79 days and collects up to 141mm (5.55") of precipitation.

Daylight

The average length of the day in Vale das Velhas, Portugal, is 14.4h.

Sunshine

The average sunshine in May is 9.9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Vale das Velhas?

In Vale das Velhas, in May, the average high-temperature is 22°C (71.6°F), and the average low-temperature is 11.8°C (53.2°F).

What is the average humidity in May in Vale das Velhas?

In May, the average relative humidity is 72%.

How much does it rain in Vale das Velhas in May?

In Vale das Velhas, Portugal, during May, the rain falls for 6.2 days and regularly aggregates up to 11mm (0.43") of precipitation.

What is the average length of the day in May in Vale das Velhas?

In May, the average length of the day in Vale das Velhas, Portugal, is 14.4h.

How long on average sun shines in May in Vale das Velhas?

In May, the average sunshine is 9.9h.

What is the UV index reading in May in Vale das Velhas?

In Vale das Velhas, Portugal, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in May
Vale das Velhas, Portugal

Average temperature in May - Vale das Velhas, Portugal
  • Average high temperature in May: 22°C

The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (13.4°C).

  • Average low temperature in May: 11.8°C

The month with the highest average low temperature is July (15°C).
The coldest months (with the lowest average low temperature) are January and February (6.7°C).

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Average pressure in May
Vale das Velhas, Portugal

Average pressure in May - Vale das Velhas, Portugal
  • Average pressure in May: 1016.2mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in May
Vale das Velhas, Portugal

Average wind speed in May - Vale das Velhas, Portugal
  • Average wind speed in May: 11km/h

The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).

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Average humidity in May
Vale das Velhas, Portugal

Average humidity in May - Vale das Velhas, Portugal
  • Average humidity in May: 72%

The month with the highest relative humidity is January (82%).
Months with the lowest relative humidity are August and September (68%).

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Average rainfall in May
Vale das Velhas, Portugal

Average rainfall in May - Vale das Velhas, Portugal
  • Average rainfall in May: 11mm

The wettest month (with the highest rainfall) is November (27mm).
The driest month (with the least rainfall) is July (2mm).

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Average rainfall days in May
Vale das Velhas, Portugal

Average rainfall days in May - Vale das Velhas, Portugal
  • Average rainfall days in May: 6.2 days

The month with the highest number of rainy days is April (11.3 days).
The month with the least rainy days is August (1.9 days).

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Average daylight in May /
Average sunshine in May
Vale das Velhas, Portugal

Average daylight in May / Average sunshine in May - Vale das Velhas, Portugal
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 9.9h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 5.1h).

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Average sunshine days in May
Vale das Velhas, Portugal

Average sunshine days in May - Vale das Velhas, Portugal
  • Average sunshine days in May: 22.6 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (16.2 days).

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Average UV index in May
Vale das Velhas, Portugal

Average UV index in May - Vale das Velhas, Portugal
  • Average UV index in May: 5

The month with the highest UV index is August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in May
Vale das Velhas, Portugal

Average cloud cover in May - Vale das Velhas, Portugal
  • Average cloud cover in May: 30

The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in May
Vale das Velhas, Portugal

Average visibility in May - Vale das Velhas, Portugal
  • Average visibility in May: 9km

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

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