Lake Red Rock — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Red Rock, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Red Rock today is 21.3°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 |
|---|---|---|---|
| SEP 13 | 22.5°C | 22.2°C | |
| SEP 14 | 23.2°C | 22.2°C | |
| SEP 15 | 22.3°C | 22.2°C | |
| SEP 16 | 21.7°C | 22.2°C | |
| SEP 17 | 22.0°C | 22.2°C | |
| SEP 18 | 21.2°C | 22.2°C | |
| SEP 19 | 21.0°C | 22.2°C | |
| SEP 20 | 20.5°C | 22.2°C | |
| SEP 21 | 22.2°C | 21.3°C | |
| SEP 22 | 22.2°C | 21.4°C | |
| SEP 23 | 22.2°C | 21.4°C | |
| SEP 24 | 22.2°C | 21.5°C | |
| SEP 25 | 22.2°C | 21.5°C | |
| SEP 26 | 22.2°C | 21.6°C | |
| SEP 27 | 22.2°C | 21.6°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 | 4°C |
| February | 1°C | 4°C | 7°C |
| March | 1°C | 7°C | 13°C |
| April | 6°C | 12°C | 18°C |
| May | 12°C | 17°C | 22°C |
| June | 18°C | 22°C | 25°C |
| July | 23°C | 26°C | 30°C |
| August | 23°C | 26°C | 29°C |
| September | 19°C | 22°C | 26°C |
| October | 12°C | 18°C | 23°C |
| November | 5°C | 11°C | 17°C |
| December | 0°C | 3°C | 6°C |
Lake Red Rock: Water Temperature by Location
Lake Red Rock: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Lake Red Rock is a large reservoir on the Des Moines River, and its water temperature varies substantially through the year. In winter the surface often approaches freezing, typically about 33–40°F (0.5–4°C). Spring brings a rapid warm-up with surface readings commonly in the 40–65°F (4–18°C) range as snowmelt and inflows cool or mix the water. Peak summer surface temperatures usually occur from July into early September, commonly ranging from roughly 68–82°F (20–28°C) and occasionally rising slightly higher in shallow, sheltered bays; deeper water stays noticeably cooler. By autumn the surface typically drops into the 50–70°F (10–21°C) window as air temperatures fall and stratification breaks down.
Swimming is permitted in many shoreline locations around Lake Red Rock but is generally limited to designated or posted areas managed by the U.S. Army Corps of Engineers, and visitors should observe site-specific signs. There are few if any lifeguarded beaches, boat traffic, changing currents near the dam and creek inlets, submerged hazards and steep drop-offs that make some spots unsafe, so swimmers are advised to choose marked areas during the warmest months (primarily June–August) when surface temperatures are most comfortable and to be cautious in early spring or late fall when cold water can pose hypothermia risk.