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
May's onset brings a subtle temperature rise, moving from a refreshing 18.6°C (65.5°F) in April to an agreeable 21.8°C (71.2°F). Seixal witnesses a consistent average low-temperature of 14.8°C (58.6°F) throughout May.Humidity
The average relative humidity in May is 69%.Rainfall
In Seixal, in May, it is raining for 3.8 days, with typically 5mm (0.2") of accumulated precipitation. In Seixal, during the entire year, the rain falls for 54.2 days and collects up to 61mm (2.4") of precipitation.Daylight
In May, the average length of the day in Seixal is 14h and 17min.On the first day of May, sunrise is at 06:38 and sunset at 20:28. On the last day of the month, sunrise is at 06:13 and sunset at 20:54 WEST.
Sunshine
In Seixal, the average sunshine in May is 10.6h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 6 in May transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the temperature in May in Seixal?
What is the average humidity in May in Seixal?
How much does it rain in Seixal in May?
How many hours of daylight does Seixal have in May?
What time are sunrise and sunset in May in Seixal?
How long on average sun shines in May in Seixal?
What is the month with the highest UV index in Seixal?
What is the UV index intensity in May in Seixal?
Average temperature in May
Seixal, Portugal
- Average high temperature in May: 21.8°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (14.9°C).
- Average low temperature in May: 14.8°C
The month with the highest average low temperature is July (17.9°C).
The coldest month (with the lowest average low temperature) is February (9.8°C).
Average pressure in May
Seixal, 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
Seixal, Portugal
- Average wind speed in May: 15.4km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is September (13.1km/h).
Average humidity in May
Seixal, 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 (68%).
Average rainfall in May
Seixal, Portugal
- Average rainfall in May: 5mm
The wettest month (with the highest rainfall) is November (15mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days in May
Seixal, Portugal
- Average rainfall days in May: 3.8 days
The month with the highest number of rainy days is November (9.3 days).
The month with the least rainy days is August (0.8 days).
Average daylight in May /
Average sunshine in May
Seixal, 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
Seixal, Portugal
- Average sunshine days in May: 24.7 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is November (17.7 days).
Average UV index in May
Seixal, 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
Seixal, 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 13).
Average visibility in May
Seixal, 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).
Seixal, Portugal
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