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 sea temperature 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 in Portimão denotes a minimal variation in the average high-temperature to an agreeable 20.8°C (69.4°F) from April's 17.9°C (64.2°F). The average low-temperature of 15.4°C (59.7°F) is witnessed during May.Humidity
In Portimão, the average relative humidity in May is 71%.Rainfall
In Portimão, Portugal, during May, the rain falls for 5.6 days and regularly aggregates up to 8mm (0.31") of precipitation. In Portimão, during the entire year, the rain falls for 73.8 days and collects up to 116mm (4.57") of precipitation.Sea temperature
In Portimão, in May, the average water temperature is 18.3°C (64.9°F).Note: Swimming in water that is 18.3°C (64.9°F) is not enjoyable for most. Breathing becomes more challenging to manage as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In May, the average length of the day is 14h and 10min.On the first day of the month, sunrise is at 06:38 and sunset at 20:23. On the last day of May, in Portimão, Portugal, sunrise is at 06:15 and sunset at 20:48 WEST.
Sunshine
In Portimão, the average sunshine in May is 11.1h.UV index
The average daily maximum UV index in May in Portimão is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Portimão in May?
What is the average humidity in May in Portimão?
How many days does it rain in May in Portimão?
What is the sea water temperature in May in Portimão?
What is the average length of the day in May in Portimão?
When are sunrise and sunset in May in Portimão?
How long on average sun shines in May in Portimão?
What is the UV index intensity in May in Portimão?
Average temperature in May
Portimão, Portugal
- Average high temperature in May: 20.8°C
The warmest month (with the highest average high temperature) is August (26.4°C).
The month with the lowest average high temperature is January (15.2°C).
- Average low temperature in May: 15.4°C
The month with the highest average low temperature is August (19.4°C).
The coldest month (with the lowest average low temperature) is February (11°C).
Average pressure in May
Portimão, Portugal
- Average pressure in May: 1016.1mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in May
Portimão, Portugal
- Average wind speed in May: 16.2km/h
The windiest month (with the highest average wind speed) is February (18.7km/h).
The calmest month (with the lowest average wind speed) is September (13.3km/h).
Average humidity in May
Portimão, Portugal
- Average humidity in May: 71%
The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall in May
Portimão, Portugal
- Average rainfall in May: 8mm
The wettest month (with the highest rainfall) is November (20mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in May
Portimão, Portugal
- Average rainfall days in May: 5.6 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (1 days).
Average sea temperature in May
Portimão, Portugal
- Average sea temperature in May: 18.3°C
The best month for swimming (with the highest average sea temperature) is September (21.2°C).
The coldest month (with the lowest average sea temperature) is March (16°C).
Average daylight in May /
Average sunshine in May
Portimão, 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 48min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in May
Portimão, Portugal
- Average sunshine days in May: 24.1 days
The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is November (17.4 days).
Average UV index in May
Portimão, Portugal
- Average UV index in May: 5
The months with the highest UV index are 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
Portimão, Portugal
- Average cloud cover in May: 19
The month with the most cloud cover is January (Cloud cover 33).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in May
Portimão, 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).
Portimão, Portugal
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