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
Weather in May
Temperature
The arrival of May signals a slight increase in the average high-temperature, moving from a moderate 15.5°C (59.9°F) in April to a still refreshing 19.6°C (67.3°F). During the month of May, Samil's nighttime temperature lowers to an average of 8°C (46.4°F).Humidity
The average relative humidity in May is 69%.Rainfall
In Samil, in May, it is raining for 14.3 days, with typically 42mm (1.65") of accumulated precipitation. Throughout the year, there are 141.7 rainfall days, and 532mm (20.94") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Samil.Daylight
The average length of the day in May in Samil is 14h and 34min.On the first day of the month, sunrise is at 06:22 and sunset at 20:25. On the last day of May, in Samil, sunrise is at 05:54 and sunset at 20:54 WEST.
Sunshine
In Samil, the average sunshine in May is 10.1h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in May translates into these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What are May temperatures in Samil?
What is the average humidity in May in Samil?
How much does it rain in Samil in May?
When it does not snow in Samil?
What is the average length of the day in May in Samil?
What time are sunrise and sunset in May in Samil?
How many hours of sunshine does Samil have in May?
What is the UV index reading in May in Samil?
Average temperature in May
Samil, Portugal
- Average high temperature in May: 19.6°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in May: 8°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure in May
Samil, Portugal
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in May
Samil, Portugal
- Average wind speed in May: 9.4km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).
Average humidity in May
Samil, Portugal
- Average humidity in May: 69%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (52%).
Average rainfall in May
Samil, Portugal
- Average rainfall in May: 42mm
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in May
Samil, Portugal
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is April (17.6 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in May
Samil, Portugal
- Average snowfall in May: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Samil, Portugal
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Samil, Portugal
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in May
Samil, Portugal
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in May
Samil, Portugal
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Samil, Portugal
- Average cloud cover in May: 32
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in May
Samil, Portugal
- Average visibility in May: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
Samil, Portugal
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