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 sea temperature 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
The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from a refreshing 18.2°C (64.8°F) to an agreeable 21.4°C (70.5°F). Alcantarilha records a steady low-temperature average of 15.4°C (59.7°F) during May.Humidity
In Alcantarilha, the average relative humidity in May is 70%.Rainfall
In Alcantarilha, in May, during 3 rainfall days, 3mm (0.12") of precipitation is typically accumulated. Throughout the year, there are 47.6 rainfall days, and 51mm (2.01") of precipitation is accumulated.Sea temperature
In May, the average sea temperature is 17°C (62.6°F).Note: Swimming is not enjoyable for most people in water that is 17°C (62.6°F). As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing control becomes harder.
Daylight
In May, the average length of the day is 14h and 10min.On the first day of May in Alcantarilha, sunrise is at 06:38 and sunset at 20:22. On the last day of the month, sunrise is at 06:15 and sunset at 20:47 WEST.
Sunshine
In Alcantarilha, Portugal, the average sunshine in May is 11.1h.UV index
The months with the highest UV index in Alcantarilha are May through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 6 in May translates into this advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. 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 average May temperature in Alcantarilha?
What is the average humidity in May in Alcantarilha?
How much does it rain in Alcantarilha in May?
What is the sea water temperature in May in Alcantarilha?
What is the average length of the day in May in Alcantarilha?
What time are sunrise and sunset in May in Alcantarilha?
How long on average sun shines in May in Alcantarilha?
When is the highest UV index in Alcantarilha?
What is the UV index intensity in May in Alcantarilha?
Average temperature in May
Alcantarilha, Portugal
- Average high temperature in May: 21.4°C
The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (15.1°C).
- Average low temperature in May: 15.4°C
The month with the highest average low temperature is August (19.4°C).
The coldest month (with the lowest average low temperature) is February (10.3°C).
Average pressure in May
Alcantarilha, Portugal
- Average pressure in May: 1016mbar
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
Alcantarilha, Portugal
- Average wind speed in May: 15.3km/h
The windiest month (with the highest average wind speed) is February (17.9km/h).
The calmest month (with the lowest average wind speed) is September (12.5km/h).
Average humidity in May
Alcantarilha, Portugal
- Average humidity in May: 70%
The months with the highest relative humidity are January, March, April and December (75%).
The month with the lowest relative humidity is August (64%).
Average rainfall in May
Alcantarilha, Portugal
- Average rainfall in May: 3mm
The wettest month (with the highest rainfall) is November (10mm).
The driest months (with the least rainfall) are July and August (0mm).
Average rainfall days in May
Alcantarilha, Portugal
- Average rainfall days in May: 3 days
The months with the highest number of rainy days are April and November (7 days).
The month with the least rainy days is August (0.4 days).
Average sea temperature in May
Alcantarilha, Portugal
- Average sea temperature in May: 17°C
The best months for swimming (with the highest average sea temperature) are August and September (21°C).
The coldest month (with the lowest average sea temperature) is February (15°C).
Average daylight in May /
Average sunshine in May
Alcantarilha, Portugal
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 11h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in May
Alcantarilha, Portugal
- Average sunshine days in May: 25.7 days
The month with the most sunshine days is July (30.2 days).
The month with the least sunshine days is April (20.1 days).
Average UV index in May
Alcantarilha, Portugal
- Average UV index in May: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in May
Alcantarilha, Portugal
- Average cloud cover in May: 18
The month with the most cloud cover is January (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in May
Alcantarilha, Portugal
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Alcantarilha, Portugal
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