Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Observing a minor shift, the average high-temperature during May adjusts from April's comfortable 17.4°C (63.3°F) to an agreeable 21.3°C (70.3°F). During the nights in May, an average low-temperature of 9.9°C (49.8°F) is observed.Humidity
In Costa, Portugal, the average relative humidity in May is 72%.Rainfall
In Costa, Portugal, during May, the rain falls for 11.2 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, there are 137.7 rainfall days, and 854mm (33.62") of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In Costa, the average length of the day in May is 14h and 32min.On the first day of May in Costa, Portugal, sunrise is at 06:29 and sunset at 20:30. On the last day of the month, sunrise is at 06:01 and sunset at 20:59 WEST.
Sunshine
In Costa, Portugal, the average sunshine in May is 9.6h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 during May translates into the following guidance:
Undertake protective steps - Preventing sun damage is advised. When the Sun is at its strongest around midday, find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the usual temperature for Costa in May?
What is the average humidity in May in Costa?
How many days does it rain in May in Costa?
When it does not snow in Costa?
How many hours of daylight does Costa have in May?
When are sunrise and sunset in May in Costa?
How many hours of sunshine does Costa have in May?
What is the UV index reading in May in Costa?
Average temperature in May
Costa, Portugal
- Average high temperature in May: 21.3°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (11.4°C).
- Average low temperature in May: 9.9°C
The month with the highest average low temperature is August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (4.7°C).
Average pressure in May
Costa, Portugal
- Average pressure in May: 1016.6mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in May
Costa, Portugal
- Average wind speed in May: 7.4km/h
The windiest month (with the highest average wind speed) is March (8.2km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).
Average humidity in May
Costa, Portugal
- Average humidity in May: 72%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (63%).
Average rainfall in May
Costa, Portugal
- Average rainfall in May: 43mm
The wettest month (with the highest rainfall) is December (131mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in May
Costa, Portugal
- Average rainfall days in May: 11.2 days
The month with the highest number of rainy days is January (15.8 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in May
Costa, Portugal
- Average snowfall in May: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Costa, Portugal
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Costa, Portugal
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Costa, Portugal
- Average sunshine days in May: 18.4 days
The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is November (11.9 days).
Average UV index in May
Costa, Portugal
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Costa, Portugal
- Average cloud cover in May: 35
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in May
Costa, Portugal
- Average visibility in May: 8km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
Costa, Portugal
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