May weather forecast
Matosinhos, Portugal

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Weather in May

May features an increase in the temperature range between 12.7°C (54.9°F) and 19.4°C (66.9°F) in Matosinhos, Portugal. The significant reduction in rainfall combined with longer sunshine hours signals the onset of the drier summer season. With lower cloud cover and humidity, visibility improves significantly which is great for sightseeing. The summer sea also begins to warm up, allowing for an array of water-based activities. May, thus, brings with it a refreshing change in the weather inviting more tourists to the city.

Temperature

The initiation of May in Matosinhos, Portugal, sees an average high-temperature of a still enjoyable 19.4°C (66.9°F), showing minor variations from the previous month. Matosinhos records an average low-temperature of 12.7°C (54.9°F) throughout the month of May.

Humidity

The average relative humidity in May is 73%.

Rainfall

In Matosinhos, during May, the rain falls for 11.5 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, in Matosinhos, there are 137.1 rainfall days, and 682mm (26.85") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in Matosinhos is 16.5°C (61.7°F).
Note: In water with a temperature of 16.5°C (61.7°F), most individuals do not find swimming enjoyable. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), breathing control becomes more difficult.

Daylight

In Matosinhos, the average length of the day in May is 14h and 30min.
On the first day of the month, sunrise is at 06:31 and sunset at 20:32. On the last day of May, in Matosinhos, sunrise is at 06:04 and sunset at 21:00 WEST.

Sunshine

The average sunshine in May in Matosinhos, Portugal, is 10h.

UV index

The average daily maximum UV index in May in Matosinhos is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 5 during May translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What are the temperatures in Matosinhos in May?

In May, in Matosinhos, the average high-temperature is 19.4°C (66.9°F), and the average low-temperature is 12.7°C (54.9°F).

What is the average humidity in May in Matosinhos?

The average relative humidity in May is 73%.

How much does it rain in Matosinhos in May?

In Matosinhos, Portugal, in May, it is raining for 11.5 days, with typically 33mm (1.3") of accumulated precipitation.

How cold is the water in May in Matosinhos?

In Matosinhos, the average seawater temperature in May is 16.5°C (61.7°F). For swimming, a surface water temperature of 16.5°C (61.7°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Matosinhos have in May?

The average day length in May in Matosinhos, Portugal, is 14h and 30min.

When is the sunrise / sunset in May in Matosinhos?

On the first day of May in Matosinhos, Portugal, sunrise is at 06:31 and sunset at 20:32. On the last day of the month, sunrise is at 06:04 and sunset at 21:00 WEST.

How long on average sun shines in May in Matosinhos?

The average sunshine duration in May in Matosinhos is 10h.

What is the UV index reading in May in Matosinhos?

In Matosinhos, Portugal, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.

Average temperature in May
Matosinhos, Portugal

Average temperature in May - Matosinhos, Portugal
  • Average high temperature in May: 19.4°C

The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (12.8°C).

  • Average low temperature in May: 12.7°C

The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is February (8.1°C).

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Average pressure in May
Matosinhos, Portugal

Average pressure in May - Matosinhos, 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
Matosinhos, Portugal

Average wind speed in May - Matosinhos, Portugal
  • Average wind speed in May: 12.9km/h

The windiest months (with the highest average wind speed) are February and November (14.3km/h).
The calmest month (with the lowest average wind speed) is September (10.7km/h).

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Average humidity in May
Matosinhos, Portugal

Average humidity in May - Matosinhos, Portugal
  • Average humidity in May: 73%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (71%).

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Average rainfall in May
Matosinhos, Portugal

Average rainfall in May - Matosinhos, Portugal
  • Average rainfall in May: 33mm

The wettest month (with the highest rainfall) is November (108mm).
The driest month (with the least rainfall) is July (10mm).

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Average rainfall days in May
Matosinhos, Portugal

Average rainfall days in May - Matosinhos, Portugal
  • Average rainfall days in May: 11.5 days

The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (4.6 days).

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Average sea temperature in May
Matosinhos, Portugal

Average sea temperature in May - Matosinhos, Portugal
  • Average sea temperature in May: 16.5°C

The best month for swimming (with the highest average sea temperature) is September (18.2°C).
The coldest months (with the lowest average sea temperature) are February and March (13.8°C).

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

Average daylight in May / Average sunshine in May - Matosinhos, 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 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in May
Matosinhos, Portugal

Average sunshine days in May - Matosinhos, Portugal
  • Average sunshine days in May: 18.1 days

The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (11.9 days).

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Average UV index in May
Matosinhos, Portugal

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

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Average cloud cover in May
Matosinhos, Portugal

Average cloud cover in May - Matosinhos, Portugal
  • Average cloud cover in May: 28

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 18).

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Average visibility in May
Matosinhos, Portugal

Average visibility in May - Matosinhos, Portugal
  • Average visibility in May: 10km

The months with the highest visibility are February, March, May, June, September, October and December (10km).
The months with the lowest visibility are January, April, July, August and November (9km).

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Matosinhos, Portugal

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