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
May
Weather in May
Temperature
As May arrives, Alentejo's weather shows a minor increase in high-temperatures, edging from April's refreshing 16°C (60.8°F) to a pleasant 20.5°C (68.9°F). In Alentejo, in May, the average low-temperature is a chilly 8.7°C (47.7°F).Humidity
In May, the average relative humidity is 70%.Rainfall
In Alentejo, Portugal, during May, the rain falls for 10.7 days and regularly aggregates up to 33mm (1.3") of precipitation. In Alentejo, during the entire year, the rain falls for 116.6 days and collects up to 496mm (19.53") of precipitation.Snowfall
In Alentejo, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 26min.On the first day of May in Alentejo, sunrise is at 06:29 and sunset at 20:26. On the last day of the month, sunrise is at 06:03 and sunset at 20:54 WEST.
Sunshine
The average sunshine in May is 9.5h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - It is advised to guard against sun damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Alentejo?
What is the average humidity in May in Alentejo?
How many days does it rain in May in Alentejo?
When it does not snow in Alentejo?
Does it snow in Alentejo in May?
How many hours of daylight does Alentejo have in May?
When are sunrise and sunset in May in Alentejo?
How many hours of sunshine does Alentejo have in May?
What is the UV index intensity in May in Alentejo?
Average temperature in May
Alentejo, Portugal
- Average high temperature in May: 20.5°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in May: 8.7°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in May
Alentejo, Portugal
- Average pressure in May: 1016.1mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in May
Alentejo, Portugal
- Average wind speed in May: 9.7km/h
The windiest month (with the highest average wind speed) is February (11.5km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in May
Alentejo, Portugal
- Average humidity in May: 70%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (51%).
Average rainfall in May
Alentejo, Portugal
- Average rainfall in May: 33mm
The wettest month (with the highest rainfall) is December (83mm).
The driest months (with the least rainfall) are July and August (7mm).
Average rainfall days in May
Alentejo, Portugal
- Average rainfall days in May: 10.7 days
The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in May
Alentejo, Portugal
- Average snowfall in May: 0mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in May
Alentejo, Portugal
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Alentejo, Portugal
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 9h and 3min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Alentejo, Portugal
- Average sunshine days in May: 19 days
The month with the most sunshine days is August (27.5 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in May
Alentejo, Portugal
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Alentejo, 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 12).
Average visibility in May
Alentejo, Portugal
- Average visibility in May: 9km
The months with the highest visibility are July and August (10km).
The month with the lowest visibility is January (7km).
