San Pièr dʼIsonzo Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Pièr dʼIsonzo.
Climate overview of San Pièr dʼIsonzo
The climate in San Pièr dʼIsonzo, Italy, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in August to 9°C (48°F) in January.
The city has a wet climate, receiving around 1511 mm (59 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from September to November, with warm summers and cold winters. November is the wettest month. Sunshine peaks in July, when the city sees around 9.7 hours of sunshine per day.
San Pièr dʼIsonzo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Pièr dʼIsonzo - and find the best time to visit.
Monthly Temperature in San Pièr dʼIsonzo
In San Pièr dʼIsonzo, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 28°C (82°F) in August to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 20°C (68°F) in August to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Pièr dʼIsonzo
San Pièr dʼIsonzo experiences significant rainfall throughout the year, averaging 1511 mm (59 in) of precipitation annually. The seasons in San Pièr dʼIsonzo bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 201 mm (7.9 in) of precipitation. This rainfall is distributed across 12 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 75 mm (3 in) over 12 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our San Pièr dʼIsonzo 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 San Pièr dʼIsonzo
In San Pièr dʼIsonzo, summer days are longer and more sunny, with daily sunshine hours peaking at 9.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.8 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in San Pièr dʼIsonzo by Month
The relative humidity is high throughout the year in San Pièr dʼIsonzo.
The city experiences its highest humidity in October, reaching 69%. In March, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit San Pièr dʼIsonzo
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: A distinct rainy season from September to November, with warm summers and cold winters
Frequently asked questions about the climate in San Pièr dʼIsonzo
What is the best time to visit San Pièr dʼIsonzo?
July and August typically offer the most optimal weather in San Pièr dʼIsonzo. In contrast, January, February, March, November and December tend to have less optimal conditions. San Pièr dʼIsonzo has a distinct rainy season from September to November, with warm summers and cold winters.
What temperatures can I expect in San Pièr dʼIsonzo?
Daytime highs range from 9°C (48°F) in January to 28°C (82°F) in August. Nighttime lows range from 3°C (37°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does San Pièr dʼIsonzo get?
Annual rainfall is around 1511 mm (59 in). November is the wettest month with 201 mm (7.9 in), while July is the driest with 75 mm (3 in).
How sunny is San Pièr dʼIsonzo?
San Pièr dʼIsonzo receives around 2,117 hours of sunshine per year. July is the sunniest month with 290 hours, while December is the cloudiest with just 84 hours. Overall, San Pièr dʼIsonzo enjoys abundant sunshine.
San Pièr dʼIsonzo 3-Day Forecast
San Pièr dʼIsonzo on the map
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