Rum River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Rum River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Rum River today is 20.6°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 | 18.9°C | 19.0°C | |
| JUN 4 | 18.9°C | 19.0°C | |
| JUN 5 | 18.8°C | 19.0°C | |
| JUN 6 | 19.1°C | 19.0°C | |
| JUN 7 | 20.1°C | 19.0°C | |
| JUN 8 | 20.4°C | 19.0°C | |
| JUN 10 | 20.6°C | 19.0°C | |
| JUN 11 | 19.0°C | 20.5°C | |
| JUN 12 | 19.0°C | 20.4°C | |
| JUN 13 | 19.0°C | 20.4°C | |
| JUN 14 | 19.0°C | 20.3°C | |
| JUN 15 | 19.0°C | 20.2°C | |
| JUN 16 | 19.0°C | 20.1°C | |
| JUN 17 | 19.0°C | 20.0°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 | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 0°C | 6°C | 11°C |
| April | 3°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 24°C |
| July | 17°C | 20°C | 24°C |
| August | 17°C | 21°C | 23°C |
| September | 11°C | 16°C | 21°C |
| October | 8°C | 14°C | 19°C |
| November | 3°C | 8°C | 16°C |
| December | 3°C | 5°C | 8°C |
Rum River: Water Temperature by Location
Rum River: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Source Mille Lacs Lake
• location Mille Lacs Indian Reservation
Mouth Mississippi River
• location Anoka, Anoka County, MN
Length 151 miles (243 km)
The Rum River in Minnesota is a serene waterway known for its scenic beauty and opportunities for outdoor recreation. In the summer months, the water temperature usually ranges from 65°F to 75°F (18°C to 24°C), making it suitable for swimming in calmer stretches of the river. Many locals and visitors enjoy wading or cooling off along the riverbanks, particularly in designated parks and recreational areas where access to the water is safe and convenient.
As the seasons change, water temperatures in the Rum River can drop significantly, reaching as low as 32°F to 45°F (0°C to 7°C) during late fall and winter. While swimming becomes impractical during colder months, the river still attracts kayakers, anglers, and those looking to enjoy the picturesque surroundings.
Swimming in the Rum River requires some caution due to its occasional currents and varying depths. It’s best to choose areas where the water is calm and to follow any local guidelines or safety recommendations. Whether you're swimming, paddling, or simply enjoying the peaceful atmosphere, the Rum River offers a refreshing escape into nature.