May weather forecast
Porto Martins, Portugal

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Weather in May

May, the last month of the spring in Porto Martins, is another refreshing month, with temperature in the range of an average low of 15.9°C (60.6°F) and an average high of 17.1°C (62.8°F).

Temperature

The initiation of May sees an average high-temperature of a still enjoyable 17.1°C (62.8°F), showing minor variations from the previous month. A consistent average low-temperature of 15.9°C (60.6°F), with a minor variance from the daytime highs, is noted in Porto Martins during the nights of May.

Humidity

The average relative humidity in May is 81%.

Rainfall

In Porto Martins, in May, it is raining for 12.6 days, with typically 39mm (1.54") of accumulated precipitation. In Porto Martins, during the entire year, the rain falls for 175.5 days and collects up to 542mm (21.34") of precipitation.

Daylight

In Porto Martins, the average length of the day in May is 14h and 17min.
On the first day of the month, sunrise is at 06:49 and sunset at 20:40. On the last day of May, sunrise is at 06:25 and sunset at 21:06 +00.

Sunshine

The average sunshine in May in Porto Martins is 8.4h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the usual temperature for Porto Martins in May?

The high-temperature, in May, in Porto Martins, is 17.1°C (62.8°F), while the low-temperature averages to 15.9°C (60.6°F).

What is the average humidity in May in Porto Martins?

In May, the average relative humidity in Porto Martins is 81%.

How much does it rain in Porto Martins in May?

In Porto Martins, Portugal, in May, it is raining for 12.6 days, with typically 39mm (1.54") of accumulated precipitation.

What is the average length of the day in May in Porto Martins?

In Porto Martins, the average day length in May is 14h and 17min.

What time are sunrise and sunset in May in Porto Martins?

In May, on the first day of the month, sunrise is at 06:49 and sunset at 20:40. On the last day of the month, sunrise is at 06:25 and sunset at 21:06 +00.

How many hours of sunshine does Porto Martins have in May?

In Porto Martins, Portugal, the average sunshine duration in May is 8.4h.

What is the UV index intensity in May in Porto Martins?

The average daily maximum UV index in May in Porto Martins, Portugal, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Average temperature in May
Porto Martins, Portugal

Average temperature in May - Porto Martins, Portugal
  • Average high temperature in May: 17.1°C

The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is March (15.6°C).

  • Average low temperature in May: 15.9°C

The month with the highest average low temperature is August (21.6°C).
The coldest months (with the lowest average low temperature) are February and March (14.3°C).

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Average pressure in May
Porto Martins, Portugal

Average pressure in May - Porto Martins, Portugal
  • Average pressure in May: 1021.1mbar

The month with the highest atmospheric pressure is July (1024.4mbar).
The month with the lowest atmospheric pressure is October (1016.6mbar).

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Average wind speed in May
Porto Martins, Portugal

Average wind speed in May - Porto Martins, Portugal
  • Average wind speed in May: 23.1km/h

The windiest month (with the highest average wind speed) is December (29.8km/h).
The calmest month (with the lowest average wind speed) is July (16.6km/h).

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Average humidity in May
Porto Martins, Portugal

Average humidity in May - Porto Martins, Portugal
  • Average humidity in May: 81%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (77%).

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Average rainfall in May
Porto Martins, Portugal

Average rainfall in May - Porto Martins, Portugal
  • Average rainfall in May: 39mm

The wettest month (with the highest rainfall) is December (94mm).
The driest month (with the least rainfall) is July (15mm).

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Average rainfall days in May
Porto Martins, Portugal

Average rainfall days in May - Porto Martins, Portugal
  • Average rainfall days in May: 12.6 days

The month with the highest number of rainy days is October (19.5 days).
The month with the least rainy days is July (9 days).

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Average daylight in May /
Average sunshine in May
Porto Martins, Portugal

Average daylight in May / Average sunshine in May - Porto Martins, Portugal
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 0min).

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Average sunshine days in May
Porto Martins, Portugal

Average sunshine days in May - Porto Martins, Portugal
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is July (18.1 days).
The month with the least sunshine days is October (6.6 days).

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Average UV index in May
Porto Martins, Portugal

Average UV index in May - Porto Martins, Portugal
  • Average UV index in May: 5

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, April and December (UV index 4).

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Average cloud cover in May
Porto Martins, Portugal

Average cloud cover in May - Porto Martins, Portugal
  • Average cloud cover in May: 49

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 40).

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Average visibility in May
Porto Martins, Portugal

Average visibility in May - Porto Martins, Portugal
  • Average visibility in May: 10km

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

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Porto Martins, Portugal

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