May weather forecast and climate
Roalde, Portugal

Weather in May

The last month of the spring, May, is an agreeable month in Roalde, Portugal, with temperature in the range of an average high of 20.4°C (68.7°F) and an average low of 8.9°C (48°F).

Temperature

In Roalde, the average high-temperature slightly increases, from an enjoyable 16.3°C (61.3°F) in April, to a pleasant 20.4°C (68.7°F). In May, in Roalde, the average low-temperature is 8.9°C (48°F).

Humidity

The average relative humidity in May is 70%.

Rainfall

In Roalde, during 10.3 rainfall days, 25mm (0.98") of precipitation is typically accumulated. In Roalde, during the entire year, the rain falls for 107.8 days and collects up to 282mm (11.1") of precipitation.

Snowfall

April through October are months without snowfall in Roalde.

Daylight

In Roalde, the average length of the day is 14.5h.

Sunshine

The average sunshine in Roalde is 9.3h.

UV index

In May, the average daily maximum UV index in Roalde, Portugal, is 5. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Roalde?

In May, in Roalde, Portugal, the average high-temperature is 20.4°C (68.7°F), and the average low-temperature is 8.9°C (48°F).

What is the average humidity in May in Roalde?

The average relative humidity in May in Roalde, Portugal, is 70%.

How many days does it rain in May in Roalde?

In May, in Roalde, the rain falls for 10.3 days. Throughout May, 25mm (0.98") of precipitation is accumulated.

When it does not snow in Roalde?

In Roalde snow does not fall in April through October.

What is the average length of the day in May in Roalde?

The average length of the day in May in Roalde, Portugal, is 14.5h.

How many hours of sunshine does Roalde have in May?

In May, the average sunshine in Roalde, Portugal, is 9.3h.

What is the UV index intensity in May in Roalde?

In Roalde, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
Roalde, Portugal

Average temperature in May - Roalde, Portugal
  • Average high temperature in May: 20.4°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (9.4°C).

  • Average low temperature in May: 8.9°C

The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).

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Average pressure in May
Roalde, Portugal

Average pressure in May - Roalde, Portugal
  • Average pressure in May: 1016.5mbar

The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

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Average wind speed in May
Roalde, Portugal

Average wind speed in May - Roalde, Portugal
  • Average wind speed in May: 7.5km/h

The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).

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Average humidity in May
Roalde, Portugal

Average humidity in May - Roalde, Portugal
  • Average humidity in May: 70%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in May
Roalde, Portugal

Average rainfall in May - Roalde, Portugal
  • Average rainfall in May: 25mm

The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is July (8mm).

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Average rainfall days in May
Roalde, Portugal

Average rainfall days in May - Roalde, Portugal
  • Average rainfall days in May: 10.3 days

The month with the highest number of rainy days is April (13.6 days).
The month with the least rainy days is August (3.9 days).

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Average snowfall in May
Roalde, Portugal

Average snowfall in May - Roalde, Portugal
  • Average snowfall in May: 0mm

The month with the highest snowfall is February (7mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in May
Roalde, Portugal

Average snowfall days in May - Roalde, Portugal
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Roalde, Portugal

Average daylight in May / Average sunshine in May - Roalde, Portugal
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 9.3h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 4.1h).

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Average sunshine days in May
Roalde, Portugal

Average sunshine days in May - Roalde, Portugal
  • Average sunshine days in May: 18.3 days

The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is April (14.1 days).

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Average UV index in May
Roalde, Portugal

Average UV index in May - Roalde, Portugal
  • Average UV index in May: 5

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Roalde, Portugal

Average cloud cover in May - Roalde, Portugal
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in May
Roalde, Portugal

Average visibility in May - Roalde, Portugal
  • Average visibility in May: 8km

Months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (6km).

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