Castelsardo Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Castelsardo.
Climate overview of Castelsardo
The climate in Castelsardo, Sardinia, Italy, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in August to 14°C (57°F) in February.
With around 659 mm (26 in) of annual rainfall, the city has moderate precipitation levels. November is the wettest month and July the driest. It also has a distinct dry season from June to August, with warm summers and mild winters. July is the sunniest month, averaging 11.6 hours of sunshine per day.
Castelsardo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castelsardo - and find the best time to visit.
Monthly Temperature in Castelsardo
In Castelsardo, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in August to a moderate 14°C (57°F) in the coolest month, February.
Nights vary from 21°C (70°F) in August to around 8°C (46°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Castelsardo
On average, Castelsardo receives a reasonable amount of rainfall, with an annual precipitation of 659 mm (26 in). The climate in Castelsardo shows significant variation throughout the year. Expect high rainfall in November, the wettest month, with an average of 102 mm (4 in) of precipitation over 14 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 8.2 mm (0.3 in) 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
The average number of days each month with precipitation
Sunshine Hours in Castelsardo
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
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Castelsardo by Month
The relative humidity is high throughout the year in Castelsardo.
The city experiences its highest humidity in January, reaching 80%. In July, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Castelsardo
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September and October
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July
- Seasonal pattern: A distinct dry season from June to August, with warm summers and mild winters
Frequently asked questions about the climate in Castelsardo
What is the best time to visit Castelsardo?
May, June, July, August, September and October typically offer the most optimal weather in Castelsardo. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Castelsardo has a distinct dry season from June to August, with warm summers and mild winters.
What temperatures can I expect in Castelsardo?
Daytime highs range from 14°C (57°F) in February to 28°C (82°F) in August. Nighttime lows range from 8°C (46°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Castelsardo get?
Annual rainfall is around 659 mm (26 in). November is the wettest month with 102 mm (4 in), while July is the driest with 8.2 mm (0.3 in).
How sunny is Castelsardo?
Castelsardo receives around 2,597 hours of sunshine per year. July is the sunniest month with 349 hours, while December is the cloudiest with just 111 hours. Overall, Castelsardo enjoys abundant sunshine.
Castelsardo 3-Day Forecast
Castelsardo on the map
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