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Water Temperature in Jacksonville in St. Johns River: Current and Forecast
On this page, you will find comprehensive information about the water temperature in Jacksonville in St. Johns River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Jacksonville
20.7°C
TODAY
20.6°C
YESTERDAY
19.1°C
A WEEK AGO
As of today, the minimum water temperature in Jacksonville 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.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for St. Johns River in Jacksonville Over the Last 30 Days
Today the water temperature in Jacksonville is higher than the same day in previous years. The water temperature range here in April is from 5°C to 21°C. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for Jacksonville are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Table of Daily Water Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Mar 25 | 19.1°C | 12.0°C | |
| Mar 26 | 19.3°C | 12.0°C | |
| Mar 27 | 20.2°C | 12.0°C | |
| Mar 28 | 20.3°C | 12.0°C | |
| Mar 29 | 20.2°C | 12.0°C | |
| Mar 31 | 20.4°C | 12.0°C | |
| Apr 1 | 20.6°C | 13.0°C | |
| Apr 2 | 20.7°C | 13.0°C | |
| Apr 3 | 13.0°C | 20.2°C | |
| Apr 4 | 13.0°C | 19.8°C | |
| Apr 5 | 13.0°C | 19.4°C | |
| Apr 6 | 13.0°C | 19.0°C | |
| Apr 7 | 13.0°C | 18.6°C | |
| Apr 8 | 13.0°C | 18.3°C | |
| Apr 9 | 13.0°C | 18.0°C | |
| Apr 10 | 13.0°C | 17.7°C |
Water Temperature Ranges in Jacksonville by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 8°C | 13°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 11.5°C | 20°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 12°C | 21°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 5°C | 13°C | 21°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 13.4°C | 21°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 14°C | 18.5°C | 22°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 17°C | 20°C | 24°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 17°C | 21.4°C | 23°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 11°C | 17.6°C | 19°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 13.3°C | 16°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 8.1°C | 16°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 4.7°C | 8°C |
Monthly Water Temperature Histogram for St. Johns River in Jacksonville
Jacksonville Weather
APRIL 3
21°C / 34°C
mainly clearrain: 4% | wind: 23 km/h
APRIL 4
20°C / 34°C
clear skyrain: 3% | wind: 23 km/h
APRIL 5
19°C / 34°C
clear skyrain: 1% | wind: 20 km/h
Water Temperature in Jacksonville: General Trends and Swimming Opportunities
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.
Geographical Location of Jacksonville
Frequently Asked Questions About Jacksonville and its Water Temperatures
What is the current water temperature in Jacksonville?
The water temperature today in Jacksonville is 69°F (20.7°C).
What is the water temperature in Jacksonville during the summer months?
The average water temperature in Jacksonville during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Jacksonville in May?
The average water temperature in Jacksonville in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in Jacksonville in September?
The average water temperature in Jacksonville in September is typically between 52°F to 66°F (11°C to 19°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.