May weather forecastPorto do Son, Spain
May
Weather in May
Sea temperature
In May, the average sea temperature in Porto do Son, Spain, is 15.3°C (59.5°F).Note: A surface water temperature of 15.3°C (59.5°F) does not provide an enjoyable swimming experience for most. Breathing control becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
In May, the average length of the day is 14h and 38min.On the first day of the month, sunrise is at 07:29 and sunset at 21:36. On the last day of May, sunrise is at 07:00 and sunset at 22:06 CEST.
Updated: Jun 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Porto do Son, in May, the average water temperature is 15.3°C (59.5°F). Swimming in 15.3°C (59.5°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
In Porto do Son, the average day length in May is 14h and 38min.
In May, on the first day of the month, sunrise is at 07:29 and sunset at 21:36. On the last day of the month, sunrise is at 07:00 and sunset at 22:06 CEST.
Average sea temperature in May
Porto do Son, Spain
- Average sea temperature in May: 15.3°C
The best months for swimming (with the highest average sea temperature) are August and September (18.2°C).
The coldest month (with the lowest average sea temperature) is March (13.3°C).
Average daylight in May
Porto do Son, Spain
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).





