Tyrrhenian Sea — Italy

Around Ponza

19.0 km
Distance
Island loop from Ponza Harbour
Sentinel-2 cloudless 2016 · Copernicus Sentinel data

The crossing

Island loop from Ponza Harbour: 19.0 km of shortest route, the shortest loop in the water around the island. No ratified crossing yet.

Water temperature

Sea surface temperature measured by satellite at mid-route, daily values 2023–2025: the dot is the monthly mean, the bar spans the lowest to the highest.

16°20°24°28°JanFebMarAprMayJunJulAugSepOctNovDec
Show the data as a table
MonthMeanLowestHighest
January16.3 °C (61 °F)15.5 °C (60 °F)17.6 °C (64 °F)
February15.2 °C (59 °F)14.6 °C (58 °F)15.7 °C (60 °F)
March15.3 °C (60 °F)14.5 °C (58 °F)16.2 °C (61 °F)
April16.5 °C (62 °F)15 °C (59 °F)18.4 °C (65 °F)
May19.3 °C (67 °F)16.9 °C (62 °F)21.7 °C (71 °F)
June24 °C (75 °F)21.5 °C (71 °F)27.6 °C (82 °F)
July26.9 °C (80 °F)24.3 °C (76 °F)29.4 °C (85 °F)
August27 °C (81 °F)20.7 °C (69 °F)29.7 °C (85 °F)
September25 °C (77 °F)21.7 °C (71 °F)28.6 °C (83 °F)
October22.6 °C (73 °F)20.6 °C (69 °F)24.8 °C (77 °F)
November19.9 °C (68 °F)18 °C (64 °F)22 °C (72 °F)
December17.5 °C (64 °F)16.7 °C (62 °F)18.7 °C (66 °F)

The distance is the shortest loop in the water around the island, starting and finishing at the same point: it follows the shape of the coast and never cuts across land. It is not the length of the GPS track.