Iowa River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Iowa River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Iowa River today is 20.3°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 14 | 20.5°C | 17.5°C | |
| SEP 15 | 20.5°C | 17.5°C | |
| SEP 16 | 19.8°C | 17.5°C | |
| SEP 17 | 20.5°C | 17.5°C | |
| SEP 18 | 19.8°C | 17.5°C | |
| SEP 19 | 20.2°C | 17.5°C | |
| SEP 20 | 20.2°C | 17.5°C | |
| SEP 21 | 20.3°C | 17.5°C | |
| SEP 22 | 17.5°C | 20.2°C | |
| SEP 23 | 17.5°C | 20.0°C | |
| SEP 24 | 17.5°C | 19.9°C | |
| SEP 25 | 17.5°C | 19.7°C | |
| SEP 26 | 17.5°C | 19.6°C | |
| SEP 27 | 17.5°C | 19.5°C | |
| SEP 28 | 17.5°C | 19.3°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 | 2°C | 7°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 20°C | 25°C |
| July | 17°C | 23°C | 29°C |
| August | 17°C | 22°C | 27°C |
| September | 11°C | 18°C | 24°C |
| October | 8°C | 15°C | 22°C |
| November | 3°C | 11°C | 18°C |
| December | 2°C | 5°C | 8°C |
Iowa River: Water Temperature by Location
Iowa River: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Source confluence of East Branch Iowa River and West Branch Iowa River
• location: Belmond
Mouth Mississippi River
• location near Toolesboro
Length 323 mi (520 km)
The Iowa River, winding through the state of Iowa, is a picturesque river that provides both practical and recreational value to the region. Its water temperature varies throughout the year, reflecting the state's seasonal climate. In the cooler months, temperatures in the river can drop to 35°F–50°F (2°C–10°C). During the summer, the river warms to a more comfortable range of 65°F–75°F (18°C–24°C), particularly in slower-moving or shallower sections, making it inviting for water activities.
Swimming in the Iowa River is possible in some areas, but it is not a widespread activity due to varying water quality and flow conditions. Some calmer sections near parks or designated access points are suitable for wading or taking a quick dip during the warmer months. However, the river’s currents and occasional debris can pose challenges, so caution is advised. Beyond swimming, the Iowa River is well-known for kayaking, canoeing, and fishing, offering locals and visitors a way to enjoy its scenic landscapes and connect with nature.