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Jacksonville — Current Water Temperature, Annual Trends and Forecast

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

St. Johns River, United States
St. Johns River, United States © By Ebyabe, GFDL

Current Water Temperature

25.9°C
Today
25.4°C
Yesterday
24.5°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 Jacksonville today is 25.9°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 10 to June 10

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 225.0°C21.5°C
JUN 324.9°C21.5°C
JUN 425.1°C21.5°C
JUN 524.5°C21.5°C
JUN 624.5°C21.5°C
JUN 725.4°C21.5°C
JUN 825.6°C21.5°C
JUN 1021.5°C25.7°C
JUN 1121.5°C25.5°C
JUN 1221.5°C25.2°C
JUN 1321.5°C25.0°C
JUN 1421.5°C24.8°C
JUN 1521.5°C24.6°C
JUN 1621.5°C24.4°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
January3°C11°C19°C
February3°C12°C20°C
March3°C12°C21°C
April5°C16°C26°C
May8°C19°C29°C
June14°C22°C29°C
July17°C23°C29°C
August17°C24°C30°C
September11°C20°C28°C
October8°C18°C27°C
November3°C13°C23°C
December10°C15°C20°C

Jacksonville: Weather Forecast

June 9

° / °
overcast
rain: 13% | wind:

June 10

° / °
overcast
rain: 24% | wind:

June 11

° / °
light drizzle
rain: 33% | wind:

June 12

° / °
light drizzle
rain: 44% | wind:

Location & Local Information

Jacksonville, Florida, is home to the St. Johns River, one of the longest rivers in the United States, which provides plenty of opportunities for water-based activities. The water temperature in the river typically ranges from 60°F (16°C) during the cooler months, to around 80°F (27°C) in the summer. These temperatures are generally comfortable for swimming, though the cooler winter months can make swimming in the river less appealing for some.

While the St. Johns River itself is more commonly used for boating, fishing, and kayaking, there are a few designated swimming areas nearby. The river's slower current makes it an ideal spot for activities like canoeing and paddleboarding. However, caution is advised due to the potential presence of alligators, which are common in Florida waters. Despite this, local residents and tourists alike enjoy cooling off in the river during the warmer months, especially along its quieter stretches.

For a more controlled swimming experience, Jacksonville is also home to a number of public beaches along the Atlantic coast. These beaches, including Jacksonville Beach, offer safer options for swimming and water sports, with water temperatures typically ranging between 65°F (18°C) in the winter and 80-85°F (27-29°C) in the summer. Whether in the river or on the coast, Jacksonville provides ample opportunities for water activities throughout the year.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Jacksonville?
Water Temperature in Jacksonville today is 25.9°C.
What is the water temperature in Jacksonville during the summer months?
The water temperature in Jacksonville in summer fluctuates in the range of 14°C - 30°C.
Is it possible to swim in the St. Johns River in Jacksonville, and what are the available options for doing so?
Yes, it is possible to swim in the St. Johns River in Jacksonville. You can enjoy swimming at designated public access points, take part in organized events, or use personal watercraft from boat ramps.