May weather forecastRoliça, Portugal
May
Weather in May
The last month of the spring, May, is a pleasant month in Roliça, Portugal, with an average temperature ranging between min 13.5°C (56.3°F) and max 20.8°C (69.4°F).Temperature
The arrival of May brings a soft temperature shift, with the average high-temperature nudging from a comfortable 17.8°C (64°F) in April to an agreeable 20.8°C (69.4°F). The mean low-temperature during May nights is a moderate 13.5°C (56.3°F).Humidity
In Roliça, the average relative humidity in May is 74%.Rainfall
In Roliça, during May, the rain falls for 8.6 days and regularly aggregates up to 13mm (0.51") of precipitation. Throughout the year, there are 101.9 rainfall days, and 170mm (6.69") of precipitation is accumulated.Daylight
In Roliça, the average length of the day in May is 14h and 20min.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 06:12 and sunset at 20:56 WEST.
Sunshine
The average sunshine in May is 10.2h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In May, the maximum UV index of 5 translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Roliça, 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
Roliça, 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
Roliça, 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
Roliça, 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
Roliça, 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
Roliça, 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
Roliça, Portugal
- Average daylight in May: 14h and 18min
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 30min).
- 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
Roliça, 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
Roliça, 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
Roliça, 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
Roliça, 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).
