Lake Osiglia — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Osiglia, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Osiglia today is 20.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| SEP 13 | 20.7°C | 17.0°C | |
| SEP 14 | 20.3°C | 17.0°C | |
| SEP 15 | 20.6°C | 17.0°C | |
| SEP 16 | 20.5°C | 17.0°C | |
| SEP 17 | 20.4°C | 17.0°C | |
| SEP 18 | 20.2°C | 17.0°C | |
| SEP 19 | 20.4°C | 17.0°C | |
| SEP 20 | 20.2°C | 17.0°C | |
| SEP 21 | 17.0°C | 19.9°C | |
| SEP 22 | 17.0°C | 19.8°C | |
| SEP 23 | 17.0°C | 19.6°C | |
| SEP 24 | 17.0°C | 19.5°C | |
| SEP 25 | 17.0°C | 19.3°C | |
| SEP 26 | 17.0°C | 19.2°C | |
| SEP 27 | 17.0°C | 19.0°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 | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 4°C | 8°C | 11°C |
| April | 7°C | 11°C | 14°C |
| May | 9°C | 14°C | 20°C |
| June | 11°C | 17°C | 23°C |
| July | 14°C | 20°C | 25°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 8°C | 12°C | 15°C |
| November | 5°C | 9°C | 12°C |
| December | 2°C | 6°C | 9°C |
Lake Osiglia: Water Temperature by Location
Lake Osiglia: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Lake Osiglia (Lago di Osiglia) is an artificial reservoir in Liguria that tends to have cool water year-round because of its elevation and inflows. Typical seasonal surface temperatures are roughly 4–8 °C (39–46 °F) in winter, 6–15 °C (43–59 °F) in spring, 18–24 °C (64–75 °F) in summer, and 10–16 °C (50–61 °F) in autumn. These are approximate averages; shallow bays warm faster in calm weather while deeper or shaded areas remain noticeably cooler. Sudden changes in weather, inflows from mountain streams, and releases from the dam can alter temperatures locally and quickly.
Swimming is possible during the warmest months when surface temperatures reach the high teens to mid-twenties Celsius (around 64–75 °F), but access and use are subject to local rules and safety considerations. Because Osiglia is a managed reservoir used for hydroelectric and water supply purposes, there can be restrictions or advisories to protect water quality and public safety; hazards include steep banks, submerged structures, cold thermoclines, and occasional releases from the dam. Visitors should follow posted signs and municipal guidance; where swimming is allowed, use caution, avoid diving in unfamiliar spots, and be mindful that reservoir conditions differ from coastal or mountain lake swimming.