San Clemente Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Clemente.
Climate overview of San Clemente
San Clemente, Emilia-Romagna, Italy, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and January dropping to 10°C (50°F).
The city receives around 863 mm (34 in) of rainfall per year. It experiences warm summers and cold winters. November is the wettest month and July the driest. Sunshine peaks in July, when the city sees around 9.9 hours of sunshine per day.
San Clemente Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Clemente - and find the best time to visit.
Monthly Temperature in San Clemente
Visitors to San Clemente can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 29°C (84°F) in July to a chilly 10°C (50°F) in January.
Nighttime temperatures range from 21°C (70°F) in July to 4°C (39°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Clemente
Generally, San Clemente experiences moderate precipitation patterns, averaging 863 mm (34 in) yearly. The seasons in San Clemente bring significant changes in precipitation. The wettest month, November, receives moderate rainfall, with an average of 98 mm (3.9 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 39 mm (1.5 in) over 8 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our San Clemente 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 Clemente
In San Clemente, summer days are longer and more sunny, with daily sunshine hours peaking at 9.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 2.2 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
Water Temperature in San Clemente
The mean water temperature over the year ranges from 12°C (54°F) in February to 24°C (75°F) in August.
Water temperature over the year
Humidity in San Clemente by Month
The relative humidity is high throughout the year in San Clemente.
The city experiences its highest humidity in November, reaching 84%. In July, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit San Clemente
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, August and September
- Best for swimming: June, July, August and September.
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in San Clemente
What is the best time to visit San Clemente?
May, June, July, August, September and October typically offer the most optimal weather in San Clemente. In contrast, January tends to have less optimal conditions. San Clemente has warm summers and cold winters.
What temperatures can I expect in San Clemente?
Daytime highs range from 10°C (50°F) in January to 29°C (84°F) in July. Nighttime lows range from 4°C (39°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does San Clemente get?
Annual rainfall is around 863 mm (34 in). November is the wettest month with 98 mm (3.9 in), while July is the driest with 39 mm (1.5 in).
How sunny is San Clemente?
San Clemente receives around 2,053 hours of sunshine per year. July is the sunniest month with 298 hours, while January is the cloudiest with just 67 hours. Overall, San Clemente enjoys abundant sunshine.
San Clemente 3-Day Forecast
San Clemente on the map
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