Beach
Spiaggia Marina di Pietrasanta
Italy · sea 25.2 °C at its warmest, in August

Sea temperature month by month
14Jan
13.3Feb
13.5Mar
15.1Apr
18.2May
21.9Jun
24.6Jul
25.2Aug
23.1Sep
20.4Oct
17.9Nov
15.6Dec
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020.
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 Spiaggia Marina di Pietrasanta?
The sea off Spiaggia Marina di Pietrasanta averages 25.2 °C at its warmest, in August, and 13.3 °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 Spiaggia Marina di Pietrasanta?
The sea reaches 20 °C or more from June to October. Twenty degrees is where most swimmers stop calling water cold; below it, a wetsuit helps.
Where is Spiaggia Marina di Pietrasanta?
Spiaggia Marina di Pietrasanta is on the coast of Italy, at 43.9276, 10.1955. The map on this site flies straight to it.