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
Alte's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's enjoyable 18.4°C (65.1°F) to a pleasant 21.8°C (71.2°F). The average temperature in Alte drops to a moderate 15.2°C (59.4°F) during the night in the month of May.Humidity
The average relative humidity in May is 69%.Rainfall
In Alte, Portugal, in May, during 3.5 rainfall days, 5mm (0.2") of precipitation is typically accumulated. In Alte, during the entire year, the rain falls for 45.8 days and collects up to 63mm (2.48") of precipitation.Daylight
The average length of the day in May in Alte is 14h and 11min.On the first day of May, sunrise is at 06:37 and sunset at 20:22. On the last day of the month, sunrise is at 06:14 and sunset at 20:46 WEST.
Sunshine
The average sunshine in May is 11.1h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index in Alte, Portugal. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 6 suggests these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Alte in May?
What is the average humidity in May in Alte?
How much does it rain in Alte in May?
What is the average length of the day in May in Alte?
What time are sunrise and sunset in May in Alte?
How many hours of sunshine does Alte have in May?
What are the months with the highest UV index in Alte?
How high is the UV index in May in Alte?
Average temperature in May
Alte, Portugal
- Average high temperature in May: 21.8°C
The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (14.9°C).
- Average low temperature in May: 15.2°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 (10.2°C).
Average pressure in May
Alte, 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
Alte, Portugal
- Average wind speed in May: 14.9km/h
The windiest months (with the highest average wind speed) are February and March (17.5km/h).
The calmest month (with the lowest average wind speed) is September (12.2km/h).
Average humidity in May
Alte, Portugal
- Average humidity in May: 69%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (62%).
Average rainfall in May
Alte, Portugal
- Average rainfall in May: 5mm
The wettest month (with the highest rainfall) is November (13mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in May
Alte, Portugal
- Average rainfall days in May: 3.5 days
The month with the highest number of rainy days is April (7.5 days).
The month with the least rainy days is August (0.5 days).
Average daylight in May /
Average sunshine in May
Alte, 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
Alte, Portugal
- Average sunshine days in May: 25.3 days
The months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is April (20 days).
Average UV index in May
Alte, 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
Alte, Portugal
- Average cloud cover in May: 18
The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in May
Alte, 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).
