Lake Rebecca — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Rebecca, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Rebecca today is 19.1°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 | 21.2°C | 21.2°C | |
| SEP 15 | 20.4°C | 21.2°C | |
| SEP 16 | 20.2°C | 21.2°C | |
| SEP 17 | 18.9°C | 21.2°C | |
| SEP 18 | 18.2°C | 21.2°C | |
| SEP 19 | 18.7°C | 21.2°C | |
| SEP 20 | 19.0°C | 21.2°C | |
| SEP 22 | 21.2°C | 19.2°C | |
| SEP 23 | 21.2°C | 19.3°C | |
| SEP 24 | 21.2°C | 19.4°C | |
| SEP 25 | 21.2°C | 19.5°C | |
| SEP 26 | 21.2°C | 19.6°C | |
| SEP 27 | 21.2°C | 19.7°C | |
| SEP 28 | 21.2°C | 19.8°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 | 0°C | 2°C | 4°C |
| March | 0°C | 2°C | 4°C |
| April | 2°C | 7°C | 12°C |
| May | 9°C | 16°C | 23°C |
| June | 17°C | 22°C | 27°C |
| July | 20°C | 25°C | 30°C |
| August | 20°C | 24°C | 28°C |
| September | 18°C | 21°C | 25°C |
| October | 6°C | 13°C | 19°C |
| November | 3°C | 7°C | 11°C |
| December | 1°C | 4°C | 6°C |
Lake Rebecca: Water Temperature by Location
Lake Rebecca: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Lake Rebecca, like many inland Minnesota lakes, follows the seasonal rhythm of the region. In spring the surface water typically warms from near-freezing up to roughly 40–60°F (4–15°C) as ice melts and air temperatures rise. By midsummer surface temperatures commonly sit in the 68–78°F range (20–26°C), and shallow bays can warm further, occasionally reaching the mid-70s to low 80s °F (24–28°C) on hot, calm days. In autumn the lake cools again, often falling through the 50s °F (10–16°C) before returning toward freezing; in winter the surface is generally at or below 32°F (0°C) where ice cover develops.
Swimming is generally allowed at Lake Rebecca during the warm open-water season in areas designated or managed for recreation, because summer temperatures often reach comfortable levels for bathing. Local authorities may close or advise against swimming when water-quality problems occur, such as blue‑green algae blooms or high bacterial counts, and beaches may be unguarded so personal safety precautions are important. In winter, open‑water swimming is unsafe; ice activities require thick, tested ice and appropriate safety measures. Cold‑water shock and hypothermia are real risks whenever temperatures are low, so swimmers should heed posted guidance and exercise caution.