May weather forecast
Foz do Arelho, Portugal

May

Weather in May

The last month of the spring, May, is an agreeable month in Foz do Arelho, Portugal, with an average temperature varying between 20.8°C (69.4°F) and 13.5°C (56.3°F).

Temperature

As Foz do Arelho welcomes May, the average high-temperature displays a subtle shift, adjusting from an enjoyable 17.8°C (64°F) in April to a pleasant 20.8°C (69.4°F). In May, the temperature drops to an average of 13.5°C (56.3°F) at night.

Humidity

The average relative humidity in May is 74%.

Rainfall

In Foz do Arelho, in May, during 8.6 rainfall days, 13mm (0.51") of precipitation is typically accumulated. In Foz do Arelho, during the entire year, the rain falls for 101.9 days and collects up to 170mm (6.69") of precipitation.

Daylight

The average length of the day in May is 14h and 21min.
On the first day of the month, sunrise is at 06:37 and sunset at 20:30. On the last day of May, sunrise is at 06:11 and sunset at 20:57 WEST.

Sunshine

In May, the average sunshine in Foz do Arelho is 10.2h.

UV index

In Foz do Arelho, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

What is the temperature in May?
An average high-temperature, in May, in Foz do Arelho, is 20.8°C (69.4°F) and the average low-temperature is 13.5°C (56.3°F).
What is the average humidity in May in Foz do Arelho?
The average relative humidity in May is 74%.
How many days does it rain in May?
In Foz do Arelho, in May, during 8.6 rainfall days, 13mm (0.51") of precipitation is typically accumulated.
How many hours of daylight does Foz do Arelho have in May?
The average day length in May is 14h and 21min.
When are sunrise and sunset in May?
In May, on the first day of the month, sunrise is at 06:37 and sunset at 20:30. On the last day of the month, sunrise is at 06:11 and sunset at 20:57 WEST.
How many hours of sunshine does Foz do Arelho have in May?
In May, the average sunshine duration is 10.2h.
What is the UV index intensity in May?
In Foz do Arelho, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Foz do Arelho, Portugal
Average temperature in May
Foz do Arelho, Portugal
  • Average high temperature in May: 20.8°C

The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in May: 13.5°C

The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (8.8°C).

Average pressure in May - Foz do Arelho, Portugal
Average pressure in May
Foz do Arelho, Portugal
  • Average pressure in May: 1016.4mbar

The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in May - Foz do Arelho, Portugal
Average wind speed in May
Foz do Arelho, Portugal
  • Average wind speed in May: 16km/h

The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is September (13.6km/h).

Average humidity in May - Foz do Arelho, Portugal
Average humidity in May
Foz do Arelho, Portugal
  • Average humidity in May: 74%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are September and October (72%).

Average rainfall in May - Foz do Arelho, Portugal
Average rainfall in May
Foz do Arelho, Portugal
  • Average rainfall in May: 13mm

The wettest month (with the highest rainfall) is November (34mm).
The driest months (with the least rainfall) are July and August (3mm).

Average rainfall days in May - Foz do Arelho, Portugal
Average rainfall days in May
Foz do Arelho, Portugal
  • Average rainfall days in May: 8.6 days

The month with the highest number of rainy days is November (13.7 days).
The month with the least rainy days is August (3 days).

Average daylight in May / Average sunshine in May - Foz do Arelho, Portugal
Average daylight in May /
Average sunshine in May
Foz do Arelho, Portugal
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 10h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in May - Foz do Arelho, Portugal
Average sunshine days in May
Foz do Arelho, Portugal
  • Average sunshine days in May: 20.3 days

The month with the most sunshine days is August (25 days).
The month with the least sunshine days is November (13.3 days).

Average UV index in May - Foz do Arelho, Portugal
Average UV index in May
Foz do Arelho, Portugal
  • Average UV index in May: 5

The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in May - Foz do Arelho, Portugal
Average cloud cover in May
Foz do Arelho, Portugal
  • Average cloud cover in May: 28

The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are August and September (Cloud cover 21).

Average visibility in May - Foz do Arelho, Portugal
Average visibility in May
Foz do Arelho, Portugal
  • Average visibility in May: 10km

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

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