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Louisville — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Louisville, trends, monthly ranges and the forecast for the coming days.

Louisville, United States
Louisville, United States © By Charles Delano, CC BY 2.0

Current Water Temperature

21.3°C
Today
20.6°C
Yesterday
19.7°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Louisville today is 21.3°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

From May 9 to June 9

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 219.7°C18.5°C
JUN 319.1°C18.5°C
JUN 419.3°C18.5°C
JUN 519.2°C18.5°C
JUN 619.8°C18.5°C
JUN 720.6°C18.5°C
JUN 820.7°C18.5°C
JUN 1018.5°C21.2°C
JUN 1118.5°C21.0°C
JUN 1218.5°C20.9°C
JUN 1318.5°C20.7°C
JUN 1418.5°C20.6°C
JUN 1518.5°C20.5°C
JUN 1618.5°C20.3°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
January1°C5°C9°C
February1°C6°C11°C
March3°C10°C16°C
April5°C12°C19°C
May8°C13°C21°C
June14°C19°C23°C
July17°C21°C25°C
August17°C21°C25°C
September11°C18°C24°C
October8°C15°C22°C
November3°C11°C18°C
December2°C7°C13°C

Louisville: Weather Forecast

June 9

° / °
dense intensity drizzle
rain: 67% | wind:

June 10

° / °
slight thunderstorm
rain: 64% | wind:

June 11

° / °
slight thunderstorm
rain: 23% | wind:

June 12

° / °
moderate drizzle
rain: 21% | wind:

Location & Local Information

In Louisville, Kentucky, the Ohio River runs through the heart of the city, providing both a scenic and historical feature. However, swimming directly in the Ohio River is not commonly recommended due to the strong currents, water quality concerns, and the presence of commercial traffic. The water temperature in the Ohio River tends to vary depending on the season. During summer, the water temperature can reach around 75-80°F (24-27°C), which might seem inviting for a swim, but the river's conditions still pose risks. In the winter months, the water temperature can dip down to 40°F (4°C) or lower, making swimming unappealing and dangerous.

Although swimming is not a popular activity in the Ohio River itself, the river offers plenty of other recreational opportunities, such as boating, fishing, and kayaking. The calm sections of the river near the city are commonly used for these water-based activities, with several boat ramps and marinas available for public access. The picturesque views of the riverbanks and the city skyline make it a relaxing environment for those enjoying a day on the water from a boat or kayak.

For swimming, Louisville offers a range of public swimming pools and recreational centers. These locations are equipped with well-maintained facilities for those who want to swim in a safer, controlled environment. While the Ohio River may be best enjoyed from a distance or with other activities, the city provides plenty of options for aquatic fun without the risks associated with river swimming.

Frequently Asked Questions

What is the current water temperature in Louisville?
Water Temperature in Louisville today is 21.3°C.
What is the water temperature in Louisville during the summer months?
The water temperature in Louisville in summer fluctuates in the range of 14°C - 25°C.
Is it possible to swim in the Ohio River in Louisville, and what are the available options for doing so?
Yes, it's possible to swim in the Ohio River in Louisville at designated areas like Carrie Gaulbert Cox Park. Further, another available option is joining organized events like the Great Ohio River Swim.