San Giuliano Terme Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Giuliano Terme.
Climate overview of San Giuliano Terme
The climate in San Giuliano Terme, Tuscany, Italy, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in August to 11°C (52°F) in January.
Rainfall is high, totalling around 1146 mm (45 in) per year. November is the wettest month and July the driest. The city also experiences warm summers and cold winters. July is the sunniest month, averaging 10.5 hours of sunshine per day.
San Giuliano Terme Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Giuliano Terme - and find the best time to visit.
Monthly Temperature in San Giuliano Terme
In San Giuliano Terme, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in August, the warmest time of the year, to a chilly 11°C (52°F) during cooler months like January.
At night, you can expect temperatures ranging from 20°C (68°F) in August to around 3°C (37°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Giuliano Terme
San Giuliano Terme experiences significant rainfall throughout the year, averaging 1146 mm (45 in) of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives heavy rainfall, averaging 164 mm (6.5 in) of precipitation, recorded across 14 rainy days. In contrast, the driest month July brings less rainfall, with 35 mm (1.4 in) over 5 rainy days. For more details, please visit our San Giuliano Terme 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 Giuliano Terme
Seasonal changes in sunshine hours are quite dramatic in San Giuliano Terme. While July receives considerable daily sunshine with up to 10.5 hours, December marks the darkest time of the year, where sunshine is scarce with only 3.1 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in San Giuliano Terme
The mean water temperature over the year ranges from 13°C (55°F) in January to 24°C (75°F) in August.
Water temperature over the year
Humidity in San Giuliano Terme by Month
The relative humidity is high throughout the year in San Giuliano Terme.
The city experiences its highest humidity in December, reaching 76%. In July, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit San Giuliano Terme
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 and August
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July
- Best for swimming: June, July, August, September and October.
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in San Giuliano Terme
What is the best time to visit San Giuliano Terme?
May, June, July and August typically offer the most optimal weather in San Giuliano Terme. In contrast, December tends to have less optimal conditions. San Giuliano Terme has warm summers and cold winters.
What temperatures can I expect in San Giuliano Terme?
Daytime highs range from 11°C (52°F) in January to 29°C (84°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 Giuliano Terme get?
Annual rainfall is around 1146 mm (45 in). November is the wettest month with 164 mm (6.5 in), while July is the driest with 35 mm (1.4 in).
How sunny is San Giuliano Terme?
San Giuliano Terme receives around 2,273 hours of sunshine per year. July is the sunniest month with 316 hours, while December is the cloudiest with just 93 hours. Overall, San Giuliano Terme enjoys abundant sunshine.
San Giuliano Terme 3-Day Forecast
San Giuliano Terme on the map
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