May weather forecast and climate
Negreiros, Portugal

Weather in May

The last month of the spring, May, is a pleasant month in Negreiros, Portugal, with average temperature ranging between min 11.3°C (52.3°F) and max 21.4°C (70.5°F).

Temperature

In May, the average high-temperature slightly increases, from an enjoyable 18°C (64.4°F) in April, to a pleasant 21.4°C (70.5°F). The average low-temperature, in May, is 11.3°C (52.3°F).

Humidity

The average relative humidity in Negreiros is 71%.

Rainfall

In May, in Negreiros, the rain falls for 10.2 days. Throughout May, 36mm (1.42") of precipitation is accumulated. In Negreiros, during the entire year, the rain falls for 127.9 days and collects up to 828mm (32.6") of precipitation.

Daylight

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

Sunshine

In Negreiros, the average sunshine in May is 9.6h.

UV index

The average daily maximum UV index in Negreiros is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Negreiros?

In May, in Negreiros, the average high-temperature is 21.4°C (70.5°F), and the average low-temperature is 11.3°C (52.3°F).

What is the average humidity in May in Negreiros?

In Negreiros, Portugal, the average relative humidity in May is 71%.

How much does it rain in Negreiros in May?

In Negreiros, during May, the rain falls for 10.2 days and regularly aggregates up to 36mm (1.42") of precipitation.

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

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

How long on average sun shines in May in Negreiros?

In Negreiros, the average sunshine in May is 9.6h.

What is the UV index intensity in May in Negreiros?

The average daily maximum UV index in May in Negreiros, Portugal, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
Negreiros, Portugal

Average temperature in May - Negreiros, Portugal
  • Average high temperature in May: 21.4°C

The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (12.6°C).

  • Average low temperature in May: 11.3°C

The month with the highest average low temperature is July (15.1°C).
The coldest month (with the lowest average low temperature) is February (6.1°C).

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Average pressure in May
Negreiros, Portugal

Average pressure in May - Negreiros, Portugal
  • Average pressure in May: 1016.6mbar

The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

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Average wind speed in May
Negreiros, Portugal

Average wind speed in May - Negreiros, Portugal
  • Average wind speed in May: 8.5km/h

The windiest month (with the highest average wind speed) is March (9.3km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).

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Average humidity in May
Negreiros, Portugal

Average humidity in May - Negreiros, Portugal
  • Average humidity in May: 71%

The month with the highest relative humidity is January (84%).
Months with the lowest relative humidity are August and September (65%).

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Average rainfall in May
Negreiros, Portugal

Average rainfall in May - Negreiros, Portugal
  • Average rainfall in May: 36mm

The wettest month (with the highest rainfall) is November (125mm).
The driest month (with the least rainfall) is July (8mm).

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Average rainfall days in May
Negreiros, Portugal

Average rainfall days in May - Negreiros, Portugal
  • Average rainfall days in May: 10.2 days

The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is August (3.5 days).

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

Average daylight in May / Average sunshine in May - Negreiros, 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: 9.2h).

  • Average sunshine in May: 9.6h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 4.9h).

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Average sunshine days in May
Negreiros, Portugal

Average sunshine days in May - Negreiros, Portugal
  • Average sunshine days in May: 19.7 days

The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is November (13.2 days).

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Average UV index in May
Negreiros, Portugal

Average UV index in May - Negreiros, 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, March, November and December (UV index 3).

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Average cloud cover in May
Negreiros, Portugal

Average cloud cover in May - Negreiros, 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 22).

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Average visibility in May
Negreiros, Portugal

Average visibility in May - Negreiros, Portugal
  • Average visibility in May: 9km

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

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