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
May
Weather in May
Temperature
Observing a minor shift, the average high-temperature during May adjusts from April's comfortable 18°C (64.4°F) to a pleasant 21.2°C (70.2°F). May nights experience a consistent temperature drop to a moderate 15.5°C (59.9°F).Humidity
In Porches, the average relative humidity in May is 70%.Rainfall
May is the last month it rains. During 2.2 rainfall days, in May, Porches aggregates 3mm (0.12") of precipitation. In Porches, during the entire year, the rain falls for 37.2 days and collects up to 39mm (1.54") of precipitation.Sea temperature
In May, the average sea temperature is 17°C (62.6°F).Note: For most individuals, swimming in 17°C (62.6°F) is not enjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing control becomes increasingly difficult.
Daylight
The average length of the day in May is 14h and 10min.On the first day of the month, sunrise is at 06:38 and sunset at 20:23. On the last day of May, sunrise is at 06:15 and sunset at 20:47 WEST.
Sunshine
In Porches, the average sunshine in May is 11.1h.UV index
In Porches, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in May translates into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May in Porches?
What is the last month it rains?
What is the sea water temperature in May?
How many hours of daylight does Porches have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Porches, Portugal
- Average high temperature in May: 21.2°C
The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (15°C).
- Average low temperature in May: 15.5°C
The month with the highest average low temperature is August (19.7°C).
The coldest month (with the lowest average low temperature) is February (10.7°C).
Average pressure in May
Porches, 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
Porches, Portugal
- Average wind speed in May: 15.6km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is September (12.8km/h).
Average humidity in May
Porches, Portugal
- Average humidity in May: 70%
The month with the highest relative humidity is April (76%).
The months with the lowest relative humidity are July and August (66%).
Average rainfall in May
Porches, Portugal
- Average rainfall in May: 3mm
The wettest month (with the highest rainfall) is November (8mm).
The driest months (with the least rainfall) are June, July, August and September (0mm).
Average rainfall days in May
Porches, Portugal
- Average rainfall days in May: 2.2 days
The month with the highest number of rainy days is April (6.4 days).
The month with the least rainy days is August (0.2 days).
Average sea temperature in May
Porches, 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
Porches, 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 0min).
Average sunshine days in May
Porches, Portugal
- Average sunshine days in May: 27.2 days
The month with the most sunshine days is July (30.5 days).
The month with the least sunshine days is November (22.1 days).
Average UV index in May
Porches, Portugal
- Average UV index in May: 5
The months with the highest UV index are 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
Porches, 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
Porches, 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).
