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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.

Lake Osiglia, Italy
Lake Osiglia, Italy © By Davide Papalini, CC BY-SA 3.0

Current Water Temperature

22.1°C
Today
21.3°C
Yesterday
20.2°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Lake Osiglia today is 22.1°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

From May 30 to June 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2320.2°C16.6°C
JUN 2420.5°C16.6°C
JUN 2521.0°C16.6°C
JUN 2621.0°C16.6°C
JUN 2720.4°C16.6°C
JUN 2820.5°C16.6°C
JUN 2921.3°C16.6°C
JUN 3022.1°C16.6°C
JUL 120.0°C22.0°C
JUL 220.0°C21.9°C
JUL 320.0°C21.8°C
JUL 420.0°C21.7°C
JUL 520.0°C21.6°C
JUL 620.0°C21.5°C
JUL 720.0°C21.4°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
January2°C6°C9°C
February2°C6°C9°C
March4°C8°C11°C
April7°C11°C14°C
May9°C14°C20°C
June11°C17°C23°C
July14°C20°C25°C
August14°C20°C25°C
September11°C17°C22°C
October8°C12°C15°C
November5°C9°C12°C
December2°C6°C9°C

Lake Osiglia: Water Temperature by Location

Lake Osiglia: Weather Forecast

July 1

° / °
moderate rain showers
rain: 83% | wind:

July 2

° / °
mainly clear
rain: 38% | wind:

July 3

° / °
overcast
rain: 5% | wind:

July 4

° / °
overcast
rain: 3% | wind:

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.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake Osiglia?
Water Temperature in Lake Osiglia today is 22.1°C.
What is the water temperature in Lake Osiglia during the summer months?
The water temperature in Lake Osiglia in summer fluctuates in the range of 11°C - 25°C.
Is it possible to swim in Lake Osiglia (Italy) and what are the possibilities for this?
Yes — Lake Osiglia can be swum in at suitable shore and sheltered-bay spots during the warmer months, and visitors often combine bathing with low-impact activities like kayaking or paddleboarding, but you should always heed local signs, check for any access or activity restrictions and verify water quality and safety conditions before entering.