May weather forecastSerra do Bouro, Portugal

May

Weather in May

The last month of the spring, May, is a pleasant month in Serra do Bouro, Portugal, with temperature in the range of an average high of 20.8°C (69.4°F) and an average low of 13.5°C (56.3°F).

Temperature

The onset of May marks a slight increase in the average high-temperature, moving from a comfortable 17.8°C (64°F) in April to a pleasant 20.8°C (69.4°F). Serra do Bouro records a consistent low-temperature of 13.5°C (56.3°F) during May nights.

Humidity

The average relative humidity in May is 74%.

Rainfall

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

Daylight

In Serra do Bouro, the average length of the day in May is 14h and 22min.
On the first day of the month, sunrise is at 06:36 and sunset at 20:30. On the last day of May, sunrise is at 06:11 and sunset at 20:57 WEST.

Sunshine

In Serra do Bouro, the average sunshine in May is 10.2h.

UV index

The average daily maximum UV index in May in Serra do Bouro, Portugal, is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Updated: Feb 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in May, in Serra do Bouro, is 20.8°C (69.4°F) and the average low-temperature is 13.5°C (56.3°F).

In May, the average relative humidity is 74%.

In Serra do Bouro, in May, it is raining for 8.6 days, with typically 13mm (0.51") of accumulated precipitation.

The average day length in May in Serra do Bouro is 14h and 22min.

In May, on the first day of the month, sunrise is at 06:36 and sunset at 20:30. On the last day of the month, in Serra do Bouro, sunrise is at 06:11 and sunset at 20:57 WEST.

The average sunshine duration in May is 10.2h.

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

17.8°C

20.8°C

22.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16.6km/h

17km/h

16.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

15.8

20.3

19.8

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Serra do Bouro, 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
Serra do Bouro, 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
Serra do Bouro, 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
Serra do Bouro, 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
Serra do Bouro, 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
Serra do Bouro, 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
Serra do Bouro, Portugal

Average daylight in May: 14h and 24min

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 12min

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
Serra do Bouro, 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
Serra do Bouro, 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
Serra do Bouro, 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
Serra do Bouro, 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).