Swimming in Castelsardo in december 2026: Average sea temperature in december and tide times in december 2026

Average sea temperature in Castelsardo in december 2026.

In december, according to seasonal norms, the sea temperature in Castelsardo is:

Minimum: 57°F

Average: 61°F

Maximum: 66°F

Other useful seasonal weather averages in december:

  • Outside temperature: 50°F to 56°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 5mph
  • It rains a total of 3.2in, over 4 day(s).

Should we swim in Castelsardo in december?

No... The water temperature in Castelsardo in december is cold

Swimming in Castelsardo in december is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 61°F (minimum: 57°F - maximum: 66°F).

Note also that in december, the climate is tolerable with an average outside temperature of 53°F, 3.2in of precipitation (over 4 days) and 82.06 % humidity.

Water and normal seasonal temperatures in Castelsardo in december

December
Average sea temperature 61°F
Minimum sea temperature 57°F
Maximum sea temperature 66°F
Average outside temperature 54°F
Maximum outside temperature 58°F
Minimum outside temperature 50°F
Wind speed 13.7mph
Wind temperature 47°F
Precipitation 3.2in
Number of days of rain 4 jour(s)
(14%)
Humidity 83%
Visibility in kilometers 9.64km
Cloud cover 37%
Our opinion cold swimming

Chart of the tides in december 2026

Tide times in december 2026 in Castelsardo

Swim elsewhere in Sardinia in december

City Average T° Max. T° Our opinion
Cagliari in december62°F66°Fcold swimming
Alghero in december62°F66°Fcold swimming
Olbia in december61°F65°Fcold swimming
La Maddalena in december61°F66°Fcold swimming
Palau in december61°F66°Fcold swimming
Pula in december62°F66°Fcold swimming

Swim in Sardinia in december: sea temperature by city

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