Iowa City — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Iowa City, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Iowa City today is 28°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 |
|---|---|---|---|
| JUL 14 | 23.4°C | 22.5°C | |
| JUL 15 | 25.7°C | 22.5°C | |
| JUL 16 | 26.3°C | 22.5°C | |
| JUL 17 | 26.3°C | 22.5°C | |
| JUL 18 | 27.9°C | 22.5°C | |
| JUL 19 | 28.0°C | 22.5°C | |
| JUL 20 | 28.0°C | 22.5°C | |
| JUL 21 | 28.0°C | 22.5°C | |
| JUL 22 | 22.5°C | 27.7°C | |
| JUL 23 | 22.5°C | 27.5°C | |
| JUL 24 | 22.5°C | 27.2°C | |
| JUL 25 | 22.5°C | 26.9°C | |
| JUL 26 | 22.5°C | 26.6°C | |
| JUL 27 | 22.5°C | 26.4°C | |
| JUL 28 | 22.5°C | 26.1°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 | 15°C | 22°C |
| June | 14°C | 19°C | 24°C |
| July | 17°C | 23°C | 28°C |
| August | 17°C | 21°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 8°C | 15°C | 22°C |
| November | 3°C | 10°C | 17°C |
| December | 2°C | 5°C | 8°C |
Iowa City: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
In Iowa City, Iowa, the Iowa River runs through the heart of the city, offering some opportunities for water-based activities. However, similar to other rivers in the area, swimming in the Iowa River is generally not recommended due to strong currents and water quality concerns. During the summer months, the river's water temperature can rise to around 70°F to 80°F (21°C to 27°C), which might seem inviting, but the water quality often fluctuates with rainfall and runoff from surrounding areas, affecting its safety for recreational swimming.
The Iowa River's flow can be swift, especially after storms or during spring runoff, making swimming dangerous in many areas. While there may be some calm spots where people might wade or cool off, the current risks and water quality are significant concerns. Additionally, pollution, including bacteria from agricultural runoff, can compromise the water's cleanliness and make it unsafe for contact recreation.
Though the Iowa River might not be ideal for swimming, Iowa City offers alternative ways to enjoy water activities. Local parks, lakes, and swimming pools provide safer options for swimming, including the popular Coralville Lake located just outside of Iowa City, which is known for its designated swimming areas. For those looking for a river experience, kayaking, canoeing, and fishing on the Iowa River are popular activities and can be enjoyed with proper safety precautions.