Conneaut Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Conneaut Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Conneaut Lake today is 20.3°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 |
|---|---|---|---|
| JUN 3 | 18.0°C | 20.5°C | |
| JUN 4 | 18.0°C | 20.5°C | |
| JUN 5 | 18.8°C | 20.5°C | |
| JUN 6 | 19.5°C | 20.5°C | |
| JUN 7 | 19.8°C | 20.5°C | |
| JUN 8 | 19.8°C | 20.5°C | |
| JUN 10 | 20.3°C | 20.5°C | |
| JUN 11 | 20.5°C | 20.3°C | |
| JUN 12 | 20.5°C | 20.3°C | |
| JUN 13 | 20.5°C | 20.3°C | |
| JUN 14 | 20.5°C | 20.3°C | |
| JUN 15 | 20.5°C | 20.4°C | |
| JUN 16 | 20.5°C | 20.4°C | |
| JUN 17 | 20.5°C | 20.4°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 |
|---|---|---|---|
| January | 0°C | 3°C | 6°C |
| February | 0°C | 4°C | 7°C |
| March | 1°C | 5°C | 9°C |
| April | 6°C | 11°C | 16°C |
| May | 11°C | 17°C | 22°C |
| June | 17°C | 21°C | 24°C |
| July | 23°C | 25°C | 27°C |
| August | 21°C | 25°C | 29°C |
| September | 19°C | 22°C | 25°C |
| October | 13°C | 16°C | 19°C |
| November | 5°C | 10°C | 14°C |
| December | 1°C | 5°C | 8°C |
Conneaut Lake: Water Temperature by Location
Conneaut Lake: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Conneaut Lake in northwestern Pennsylvania experiences typical temperate-lake seasonal swings in surface water temperature. In winter the lake will hover near freezing, roughly 32–39 °F (0–4 °C) when ice or chill is present. Spring brings a steady rise, often into the 40s–60s °F (4–15 °C) as the lake mixes and warms. Peak summer surface temperatures commonly reach the upper 60s to upper 70s °F, approximately 20–26 °C, though sheltered bays and shallow areas can be a few degrees warmer while deeper water remains noticeably cooler. By fall the surface cools again into the 50s–60s °F (10–18 °C) as air temperatures drop and turnover begins. Actual readings depend on recent weather, wind, depth, and time of day.
Swimming on Conneaut Lake is generally permitted in designated public and private beach areas, and many visitors swim during the warmer months when surface temperatures are most comfortable. Local authorities and park operators routinely monitor water quality and post advisories; beaches may be closed temporarily for harmful algal blooms, elevated bacteria counts, or unsafe conditions. Safety considerations include cold water below the surface, boat traffic, and variable bottom contours, so swimmers should use marked swim zones and heed posted warnings and lifeguard instructions when present.