Bismarck — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Bismarck, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Bismarck today is 21.8°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 |
|---|---|---|---|
| AUG 24 | 20.8°C | 21.9°C | |
| AUG 25 | 20.8°C | 21.9°C | |
| AUG 26 | 21.1°C | 21.9°C | |
| AUG 27 | 21.7°C | 21.9°C | |
| AUG 28 | 21.1°C | 21.9°C | |
| AUG 29 | 21.0°C | 21.9°C | |
| AUG 30 | 21.0°C | 21.9°C | |
| AUG 31 | 21.5°C | 21.9°C | |
| SEP 1 | 16.0°C | 21.5°C | |
| SEP 2 | 16.0°C | 21.2°C | |
| SEP 3 | 16.0°C | 20.9°C | |
| SEP 4 | 16.0°C | 20.6°C | |
| SEP 5 | 16.0°C | 20.4°C | |
| SEP 6 | 16.0°C | 20.1°C | |
| SEP 7 | 16.0°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 | 1°C | 5°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 1°C | 6°C | 11°C |
| April | 2°C | 9°C | 16°C |
| May | 6°C | 14°C | 21°C |
| June | 14°C | 19°C | 22°C |
| July | 17°C | 23°C | 29°C |
| August | 17°C | 22°C | 27°C |
| September | 11°C | 16°C | 21°C |
| October | 8°C | 13°C | 16°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Bismarck: Weather Forecast
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September 4
September 5
Location & Local Information
Bismarck, North Dakota, lies along the Missouri River, which offers scenic views and opportunities for outdoor recreation, though swimming is not as common in the river itself. The Missouri River, near Bismarck, is typically characterized by strong currents and variable water levels, which make it less suitable for recreational swimming compared to calmer lakes or designated swimming areas. The river is, however, popular for activities such as boating, fishing, and kayaking.
The water temperature in the Missouri River near Bismarck varies significantly depending on the season. During the warmer months, from late spring to early fall, water temperatures usually range from 60°F (15°C) to 75°F (24°C). In the summer, the water can warm up to about 70°F (21°C), which may be pleasant for boating or other water activities, but many locals and visitors prefer to swim in nearby lakes or dedicated swimming spots.
While swimming in the river near Bismarck is not typically recommended due to water conditions, there are some parks and beaches around the area, such as those at the Heart River or nearby lakes, that offer more suitable environments for swimming. These places provide calmer waters and designated swimming areas with lifeguards, making them safer and more inviting for swimmers during the summer months.