Lago di San Casciano — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lago di San Casciano, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lago di San Casciano today is 19.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| OCT 3 | 20.7°C | 18.0°C | |
| OCT 4 | 20.5°C | 18.0°C | |
| OCT 5 | 20.3°C | 18.0°C | |
| OCT 6 | 20.3°C | 18.0°C | |
| OCT 7 | 20.3°C | 18.0°C | |
| OCT 8 | 19.8°C | 18.0°C | |
| OCT 9 | 19.5°C | 18.0°C | |
| OCT 10 | 19.3°C | 18.0°C | |
| OCT 11 | 18.0°C | 19.2°C | |
| OCT 12 | 18.0°C | 19.2°C | |
| OCT 13 | 18.0°C | 19.1°C | |
| OCT 14 | 18.0°C | 19.0°C | |
| OCT 15 | 18.0°C | 19.0°C | |
| OCT 16 | 18.0°C | 18.9°C | |
| OCT 17 | 18.0°C | 18.8°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 6°C | 10°C | 13°C |
| February | 6°C | 10°C | 13°C |
| March | 8°C | 12°C | 15°C |
| April | 10°C | 14°C | 18°C |
| May | 12°C | 18°C | 23°C |
| June | 16°C | 21°C | 26°C |
| July | 19°C | 24°C | 29°C |
| August | 19°C | 24°C | 29°C |
| September | 16°C | 21°C | 26°C |
| October | 13°C | 18°C | 21°C |
| November | 9°C | 13°C | 17°C |
| December | 6°C | 10°C | 13°C |
Lago di San Casciano: Water Temperature by Location
Lago di San Casciano: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Lago di San Casciano (Italian: Lago di San Casciano) is a small Tuscan lake whose water temperatures follow the region’s seasonal pattern. In winter the surface usually cools to roughly 4–8 °C (39–46 °F), while spring brings a gradual rise into the 8–16 °C (46–61 °F) range. By summer the lake commonly warms to about 20–26 °C (68–79 °F), with occasional warm spells pushing temperatures a few degrees higher. Autumn sees temperatures fall back into the 12–18 °C (54–64 °F) band as air temperatures decline and daylight shortens. Because the lake is relatively shallow compared with alpine reservoirs, it can heat and cool more quickly, producing notable daily and seasonal variation.
Swimming is generally possible during the warmer months when surface temperatures are most comfortable, but whether you can legally or safely swim depends on local rules and conditions. Many visitors enter the water in summer when it is around 20–26 °C (68–79 °F), but access can be limited by private ownership, posted restrictions, water‑quality advisories for algal blooms, or the absence of lifeguards and facilities. It is advisable to check local signage or municipal guidance before swimming, be mindful of sudden depth changes and underwater vegetation, and avoid entering the water if authorities report contamination or hazardous conditions.