Dayton — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Dayton, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Dayton today is 19.4°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 |
|---|---|---|---|
| JUN 2 | 16.7°C | 18.5°C | |
| JUN 3 | 16.7°C | 18.5°C | |
| JUN 4 | 16.8°C | 18.5°C | |
| JUN 5 | 16.7°C | 18.5°C | |
| JUN 6 | 17.1°C | 18.5°C | |
| JUN 7 | 17.8°C | 18.5°C | |
| JUN 8 | 18.8°C | 18.5°C | |
| JUN 10 | 18.5°C | 19.4°C | |
| JUN 11 | 18.5°C | 19.3°C | |
| JUN 12 | 18.5°C | 19.3°C | |
| JUN 13 | 18.5°C | 19.2°C | |
| JUN 14 | 18.5°C | 19.2°C | |
| JUN 15 | 18.5°C | 19.1°C | |
| JUN 16 | 18.5°C | 19.1°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 | 6°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 3°C | 7°C | 11°C |
| April | 5°C | 11°C | 17°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 22°C |
| July | 17°C | 21°C | 25°C |
| August | 17°C | 21°C | 25°C |
| September | 11°C | 17°C | 23°C |
| October | 8°C | 15°C | 21°C |
| November | 3°C | 8°C | 16°C |
| December | 3°C | 5°C | 8°C |
Dayton: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Dayton, Ohio, is situated along the Great Miami River, which offers a variety of recreational opportunities, though swimming in the river itself is not as common as some other water-based activities. The Great Miami River is often used for kayaking, canoeing, and fishing, as the river's calm waters make it a great spot for paddling. The water temperature in the river during the summer months typically ranges from 70°F (21°C) to 80°F (27°C), providing a comfortable atmosphere for water-based recreation, though swimming is not typically recommended due to water quality concerns, especially after heavy rainfall.
While swimming in the Great Miami River near Dayton is not a popular activity, the river is an essential part of the city's landscape and offers other forms of water recreation. Local parks along the river, such as RiverScape MetroPark, provide access to trails and amenities, allowing residents and visitors to enjoy the scenic beauty of the river without venturing into the water. It’s also important to note that the river's water quality can be impacted by stormwater runoff, and it is crucial to follow local advisories to ensure safe engagement with the river for activities like kayaking or paddleboarding.
In the cooler months, the water temperature of the Great Miami River drops significantly, often reaching around 40°F (4°C) to 50°F (10°C), making outdoor activities less frequent. During this time, most people prefer to enjoy the area’s parks and trails instead of engaging in water sports. Overall, while the Great Miami River in Dayton provides a picturesque setting for outdoor activities, swimming is not the primary use, and water activities should be approached with caution, especially with regard to water quality.