George Wyth Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in George Wyth Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in George Wyth Lake today is 19.4°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 |
|---|---|---|---|
| SEP 14 | 20.8°C | 19.9°C | |
| SEP 15 | 20.8°C | 19.9°C | |
| SEP 16 | 19.5°C | 19.9°C | |
| SEP 17 | 20.4°C | 19.9°C | |
| SEP 18 | 19.6°C | 19.9°C | |
| SEP 19 | 20.0°C | 19.9°C | |
| SEP 20 | 18.9°C | 19.9°C | |
| SEP 21 | 19.4°C | 19.9°C | |
| SEP 22 | 19.9°C | 19.4°C | |
| SEP 23 | 19.9°C | 19.5°C | |
| SEP 24 | 19.9°C | 19.5°C | |
| SEP 25 | 19.9°C | 19.5°C | |
| SEP 26 | 19.9°C | 19.5°C | |
| SEP 27 | 19.9°C | 19.6°C | |
| SEP 28 | 19.9°C | 19.6°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 | 1°C | 3°C |
| February | 0°C | 1°C | 3°C |
| March | 0°C | 6°C | 12°C |
| April | 6°C | 11°C | 16°C |
| May | 12°C | 17°C | 23°C |
| June | 18°C | 22°C | 26°C |
| July | 23°C | 27°C | 30°C |
| August | 22°C | 25°C | 28°C |
| September | 15°C | 20°C | 25°C |
| October | 12°C | 17°C | 21°C |
| November | 2°C | 10°C | 18°C |
| December | 0°C | 2°C | 5°C |
George Wyth Lake: Water Temperature by Location
George Wyth Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
George Wyth Lake’s surface water temperature varies substantially through the year and is typical of shallow Midwestern lakes. In spring (roughly April–May) temperatures commonly run about 40–60°F (4–15°C) as the lake stratifies and warms. During the summer months (June–August) surface temperatures are usually in the range of 68–82°F (20–28°C), with the warmest readings in July and early August. In early fall (September–October) the water cools back into the 50–65°F (10–18°C) window, and by late fall and winter (November–March) temperatures approach near-freezing conditions around 32–40°F (0–4°C); parts of the lake can ice over in sustained cold periods.
Swimming is generally permitted in warm months at state park-designated swimming areas, but conditions and rules can change seasonally. There may not always be lifeguards on duty, so swimmers should follow posted guidance and use caution. Swimming is not appropriate when the lake is frozen or when authorities issue advisories for water quality problems such as blue‑green algal blooms; these blooms are most likely during warm summer weather and can lead to temporary closures. Checking current park signage and local advisories before entering the water is recommended for safety.