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Castelsardo Weather and Climate: A Comprehensive Guide

The climate in Castelsardo is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to mild in the cooler months. It maintains moderate precipitation patterns. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

In Castelsardo, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 28°C in August to a moderate 14°C in the coolest month, February.

Nights are cooler, with lows often dropping to around 8°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

On average, Castelsardo receives a reasonable amount of rainfall, with an annual precipitation of 659 mm. The climate in Castelsardo shows significant variation throughout the year. Expect high rainfall in November, with an average of 102 mm of precipitation over 14 rainy days.

In contrast, July offers drier and sunnier days, with around 8.2 mm of rainfall over 2 rainy days. For more details, please visit our Castelsardo Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Castelsardo serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.6 hours of sunshine daily, and embrace the darker days in December, offering only 3.7 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Alghero, Sardinia (47 KM, 29 Miles).

Daily hours of sunshine

Data from: Alghero, Sardinia (47 KM, 29 Miles).

Forecast for Castelsardo

Sun   Dec 22
15°C | 6°C
W 11 m/s
7.2 mm
broken clouds and  chance of rain

broken clouds and chance of rain

Mon   Dec 23
11°C | 6°C
NW 13 m/s
7.7 mm
partly cloudy and thunder

partly cloudy and thunder

Tue   Dec 24
11°C | 4°C
N 10 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Castelsardo in Italy

During the months of May, June, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Castelsardo?
    The hottest season / summer takes place in June, July, August and September.
  • Does Castelsardo have a dry season?
    Yes, the months of July and August are very dry.
  • Which is the warmest month in Castelsardo?
    August has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Castelsardo?
    The coldest month is February with an average maximum temperature of 14°C.
  • Which is the wettest month in Castelsardo?
    November tops the wettest month list with 102 mm of rainfall.
  • Which is the driest month in Castelsardo?
    July is the driest month with 8 mm of precipitation.
  • Which is the sunniest month in Castelsardo?
    July is the sunniest month with an average of 349 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.