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
Weather in May
Temperature
As May begins, there's a slight increase in the average high-temperature, moving from a comfortable 18°C (64.4°F) in April to an agreeable 21.2°C (70.2°F). Alfragide's average low-temperature during May nights is observed to be a moderate 14.9°C (58.8°F).Humidity
The months with the lowest humidity in Alfragide are May and August, with an average relative humidity of 70%.Rainfall
In May, the rain falls for 9.1 days. Throughout May, 27mm (1.06") of precipitation is accumulated. Throughout the year, there are 112.7 rainfall days, and 389mm (15.31") of precipitation is accumulated.Daylight
In May, the average length of the day is 14h and 18min.On the first day of the month, sunrise is at 06:38 and sunset at 20:29. On the last day of May, in Alfragide, sunrise is at 06:13 and sunset at 20:55 WEST.
Sunshine
In May, the average sunshine is 10.6h.UV index
In May, the average daily maximum UV index in Alfragide, Portugal, is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during May translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are the temperatures in Alfragide in May?
What are the least humid months in Alfragide?
What is the average humidity in May in Alfragide?
How many days does it rain in May in Alfragide?
What is the average length of the day in May in Alfragide?
When are sunrise and sunset in May in Alfragide?
How many hours of sunshine does Alfragide have in May?
How high is the UV index in May in Alfragide?
Average temperature in May
Alfragide, Portugal
- Average high temperature in May: 21.2°C
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in May: 14.9°C
The months with the highest average low temperature are July and August (18.1°C).
The coldest month (with the lowest average low temperature) is February (10.3°C).
Average pressure in May
Alfragide, Portugal
- Average pressure in May: 1016.5mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in May
Alfragide, Portugal
- Average wind speed in May: 16.6km/h
The windiest month (with the highest average wind speed) is February (17.8km/h).
The calmest month (with the lowest average wind speed) is October (14.1km/h).
Average humidity in May
Alfragide, Portugal
- Average humidity in May: 70%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are May and August (70%).
Average rainfall in May
Alfragide, Portugal
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in May
Alfragide, Portugal
- Average rainfall days in May: 9.1 days
The month with the highest number of rainy days is November (14.4 days).
The month with the least rainy days is August (2.6 days).
Average daylight in May /
Average sunshine in May
Alfragide, Portugal
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Alfragide, Portugal
- Average sunshine days in May: 20.3 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is November (13.3 days).
Average UV index in May
Alfragide, Portugal
- Average UV index in May: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Alfragide, Portugal
- Average cloud cover in May: 24
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in May
Alfragide, 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).
Alfragide, Portugal
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