Pool 4 Sloughs at Pepin Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Pool 4 Sloughs at Pepin Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Pool 4 Sloughs at Pepin Lake today is 19.6°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 | 21.1°C | 19.0°C | |
| SEP 15 | 21.1°C | 19.0°C | |
| SEP 16 | 21.1°C | 19.0°C | |
| SEP 17 | 20.4°C | 19.0°C | |
| SEP 18 | 19.9°C | 19.0°C | |
| SEP 19 | 20.3°C | 19.0°C | |
| SEP 20 | 20.6°C | 19.0°C | |
| SEP 21 | 19.6°C | 19.0°C | |
| SEP 22 | 19.0°C | 19.6°C | |
| SEP 23 | 19.0°C | 19.5°C | |
| SEP 24 | 19.0°C | 19.5°C | |
| SEP 25 | 19.0°C | 19.5°C | |
| SEP 26 | 19.0°C | 19.5°C | |
| SEP 27 | 19.0°C | 19.4°C | |
| SEP 28 | 19.0°C | 19.4°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 | 1°C | 3°C |
| February | 0°C | 1°C | 3°C |
| March | 0°C | 3°C | 6°C |
| April | 1°C | 8°C | 15°C |
| May | 10°C | 16°C | 23°C |
| June | 16°C | 20°C | 24°C |
| July | 21°C | 25°C | 29°C |
| August | 20°C | 25°C | 30°C |
| September | 14°C | 19°C | 24°C |
| October | 9°C | 15°C | 20°C |
| November | 4°C | 8°C | 12°C |
| December | 0°C | 2°C | 5°C |
Pool 4 Sloughs at Pepin Lake: Water Temperature by Location
Pool 4 Sloughs at Pepin Lake: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
The water temperature in the Lake of Pool 4 Sloughs at Pepin varies considerably through the year. During winter the sloughs hover around freezing, roughly 32–36°F (0–2°C) where ice forms and open water is rare. In spring, as runoff and warming progress, temperatures typically rise into the 40s–60s°F (4–16°C), still quite brisk for unprotected swimming. Summer brings the warmest conditions, with surface temperatures commonly between about 70–80°F (21–27°C) on average and occasionally reaching the low 80s°F (27–29°C) on hot, calm days. By autumn the water cools back into the 50s–60s°F (10–16°C) as air temperatures decline and stratification breaks down.
Swimming in the Pool 4 sloughs is physically possible in summer months, but it is not uniformly managed as a developed beach and conditions dictate whether it is advisable. Many areas are shallow, vegetated and can have murky water, submerged hazards, boat traffic and occasional algal blooms or bacterial advisories that affect safety. Access may also be restricted by private shoreline or by wetland protection. In short, the public may swim where access and local rules permit, but swimmers should check local signage and water-quality guidance, choose sheltered spots, and be mindful of cold shock outside peak summer warmth.