May weather forecast
Douro, Portugal

May

Weather in May

The last month of the spring, May, is a pleasant month in Douro, Portugal, with an average temperature ranging between min 11.8°C (53.2°F) and max 22°C (71.6°F).

Temperature

Douro in May observes a minor temperature shift, with average high-temperatures adjusting from a refreshing 18.4°C (65.1°F) in April to an agreeable 22°C (71.6°F). Douro's average low-temperature during May nights is observed to be a fresh 11.8°C (53.2°F).

Humidity

The average relative humidity in May is 72%.

Rainfall

In Douro, in May, it is raining for 6.2 days, with typically 11mm (0.43") of accumulated precipitation. In Douro, during the entire year, the rain falls for 78.7 days and collects up to 139mm (5.47") of precipitation.

Daylight

The average length of the day in May is 14h and 23min.
On the first day of May, sunrise is at 06:32 and sunset at 20:27. On the last day of the month, sunrise is at 06:06 and sunset at 20:54 WEST.

Sunshine

The average sunshine in May is 9.9h.

UV index

In Douro, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

What are the temperatures in May?
The high-temperature, in May, in Douro, records 22°C (71.6°F), while the low-temperature is 11.8°C (53.2°F).
What is the average humidity in May?
In Douro, Portugal, the average relative humidity in May is 72%.
How many days does it rain in May?
In May, the rain falls for 6.2 days. Throughout May, 11mm (0.43") of precipitation is accumulated.
How many hours of daylight does Douro have in May?
The average day length in May is 14h and 23min.
What time are sunrise and sunset in May in Douro?
On the first day of May, sunrise is at 06:32 and sunset at 20:27. On the last day of the month, sunrise is at 06:06 and sunset at 20:54 WEST.
How long on average sun shines in May?
In May, the average sunshine duration is 9.9h.
How high is the UV index in May in Douro?
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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 - Douro, Portugal
Average temperature in May
Douro, Portugal
  • Average high temperature in May: 22°C

The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (13.4°C).

  • Average low temperature in May: 11.8°C

The month with the highest average low temperature is July (15°C).
The coldest months (with the lowest average low temperature) are January and February (6.7°C).

Average pressure in May - Douro, Portugal
Average pressure in May
Douro, Portugal
  • Average pressure in May: 1016.2mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in May - Douro, Portugal
Average wind speed in May
Douro, Portugal
  • Average wind speed in May: 11km/h

The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).

Average humidity in May - Douro, Portugal
Average humidity in May
Douro, Portugal
  • Average humidity in May: 72%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (68%).

Average rainfall in May - Douro, Portugal
Average rainfall in May
Douro, Portugal
  • Average rainfall in May: 11mm

The wettest month (with the highest rainfall) is November (27mm).
The driest month (with the least rainfall) is July (2mm).

Average rainfall days in May - Douro, Portugal
Average rainfall days in May
Douro, Portugal
  • Average rainfall days in May: 6.2 days

The month with the highest number of rainy days is April (11.3 days).
The month with the least rainy days is August (1.9 days).

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in May - Douro, Portugal
Average sunshine days in May
Douro, Portugal
  • Average sunshine days in May: 22.6 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (16.2 days).

Average UV index in May - Douro, Portugal
Average UV index in May
Douro, 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).

Average cloud cover in May - Douro, Portugal
Average cloud cover in May
Douro, Portugal
  • Average cloud cover in May: 30

The month with the most cloud cover is January (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 22).

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

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

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