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 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
May witnesses a subtle temperature ascent, adjusting from a refreshing 18.2°C (64.8°F) in April to an agreeable 21.7°C (71.1°F). During the May nights, an average temperature of 14.3°C (57.7°F) is observed in Alferce, Portugal.Humidity
In Alferce, the average relative humidity in May is 70%.Rainfall
In Alferce, in May, during 6.5 rainfall days, 11mm (0.43") of precipitation is typically accumulated. In Alferce, during the entire year, the rain falls for 85.4 days and collects up to 164mm (6.46") of precipitation.Daylight
In May, the average length of the day is 14h and 11min.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 20:48 WEST.
Sunshine
In May, the average sunshine in Alferce is 11h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Alferce?
What is the average humidity in May in Alferce?
How many days does it rain in May in Alferce?
What is the average length of the day in May in Alferce?
When is the sunrise / sunset in May in Alferce?
How many hours of sunshine does Alferce have in May?
What are the months with the highest UV index in Alferce?
How high is the UV index in May in Alferce?
Average temperature in May
Alferce, Portugal
- Average high temperature in May: 21.7°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 (14.5°C).
- Average low temperature in May: 14.3°C
The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is February (9.2°C).
Average pressure in May
Alferce, Portugal
- Average pressure in May: 1016.2mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in May
Alferce, Portugal
- Average wind speed in May: 13.9km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is September (11.2km/h).
Average humidity in May
Alferce, Portugal
- Average humidity in May: 70%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (65%).
Average rainfall in May
Alferce, Portugal
- Average rainfall in May: 11mm
The wettest month (with the highest rainfall) is November (25mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
Alferce, Portugal
- Average rainfall days in May: 6.5 days
The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is August (1.5 days).
Average daylight in May /
Average sunshine in May
Alferce, 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 36min).
- Average sunshine in May: 11h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in May
Alferce, Portugal
- Average sunshine days in May: 21.5 days
The month with the most sunshine days is July (28.6 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in May
Alferce, 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 month with the lowest UV index is January (UV index 3).
Average cloud cover in May
Alferce, Portugal
- Average cloud cover in May: 21
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in May
Alferce, 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).
