San Marino Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Marino.
Climate overview of San Marino
The climate in San Marino, San Marino, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in July to 9°C (48°F) in January.
San Marino sees a moderate amount of rain/snowfall, totalling around 898 mm (35 in) per year. It experiences warm summers and cold winters, creating some seasonal variation. July is the sunniest month, averaging 9.9 hours of sunshine per day.
San Marino Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Marino - and find the best time to visit.
Monthly Temperature in San Marino
In San Marino, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.
At night, you can expect temperatures ranging from 19°C (66°F) in July to around 3°C (37°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Marino
On average, San Marino receives a reasonable amount of rain/snowfall, with an annual precipitation of 898 mm (35 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives moderate rainfall, averaging 99 mm (3.9 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month July brings less rainfall, with 44 mm (1.7 in) over 8 rainy days. For more details, please visit our San Marino 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 Marino
Seasonal changes in sunshine hours are quite dramatic in San Marino. While July receives considerable daily sunshine with up to 9.9 hours, January marks the darkest time of the year, where sunshine is scarce with only 2.2 hours of sunlight per 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 Marino
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 Marino by Month
The relative humidity is high throughout the year in San Marino.
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 Marino
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 Marino
What is the best time to visit San Marino?
May, June, July, August, September and October typically offer the most optimal weather in San Marino. In contrast, January, February and December tend to have less optimal conditions. San Marino has warm summers and cold winters.
What temperatures can I expect in San Marino?
Daytime highs range from 9°C (48°F) in January to 29°C (84°F) in July. Nighttime lows range from 3°C (37°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does San Marino get?
Annual rainfall is around 898 mm (35 in). November is the wettest month with 99 mm (3.9 in), while July is the driest with 44 mm (1.7 in).
How sunny is San Marino?
San Marino 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 Marino enjoys abundant sunshine.
San Marino 3-Day Forecast
San Marino 3-Day Forecast
San Marino on the map
San Marino is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
