Beach
Vasco da Gama beach
Sines, Portugal · sea 19.2 °C at its warmest, in September

Sea temperature month by month
15.5Jan
14.9Feb
14.9Mar
15.6Apr
16.6May
18Jun
18.6Jul
19.1Aug
19.2Sep
18.7Oct
17.5Nov
16.4Dec
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
About
beach in Sines, Setúbal, Portugal
Wikipedia has no article about this beach yet. It is on the atlas from its Wikidata record and its photograph.
Questions
How warm is the sea at Vasco da Gama beach?
The sea off Vasco da Gama beach averages 19.2 °C at its warmest, in September, and 14.9 °C at its coolest. These are monthly means from NOAA's OISST v2.1 satellite and buoy record for 1991 to 2020, sampled at the beach's own coordinates.
When can you swim at Vasco da Gama beach?
The sea here never averages 20 °C in any month, so swimming means cold water all year. Some people do it anyway.
Where is Vasco da Gama beach?
Vasco da Gama beach is on the coast of Sines, Portugal, at 37.9536, -8.8664. The map on this site flies straight to it.