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Deltona — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Deltona, 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

27.9°C
Today
27.5°C
Yesterday
27.6°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 Deltona today is 27.9°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

From August 9 to September 9

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 227.6°C19.5°C
SEP 328.2°C19.5°C
SEP 428.4°C19.5°C
SEP 527.6°C19.5°C
SEP 627.8°C19.5°C
SEP 728.1°C19.5°C
SEP 827.5°C19.5°C
SEP 927.7°C19.5°C
SEP 1019.5°C27.5°C
SEP 1119.5°C27.1°C
SEP 1219.5°C26.6°C
SEP 1319.5°C26.2°C
SEP 1419.5°C25.8°C
SEP 1519.5°C25.4°C
SEP 1619.5°C25.0°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°C12°C22°C
February3°C13°C23°C
March3°C15°C26°C
April5°C16°C27°C
May8°C19°C30°C
June14°C22°C30°C
July17°C25°C33°C
August17°C23°C30°C
September11°C20°C28°C
October8°C18°C27°C
November3°C15°C26°C
December15°C20°C24°C

Deltona: Weather Forecast

September 10

° / °
slight thunderstorm
rain: 68% | wind:

September 11

° / °
slight thunderstorm
rain: 71% | wind:

September 12

° / °
slight thunderstorm
rain: 71% | wind:

September 13

° / °
violent rain showers
rain: 69% | wind:

September 14

° / °
light drizzle
rain: 57% | wind:

Location & Local Information

The St. Johns River, which flows near Deltona, Florida, offers a serene setting for various water activities, including boating and fishing. When it comes to swimming, the river's water temperature is relatively warm, especially compared to northern rivers. During the winter months, the temperature can drop to around 60°F (16°C), which can still be chilly for swimming but is generally considered tolerable by some locals. However, the water remains comfortable enough for other activities throughout the year.

In the spring and summer, the water temperature of the St. Johns River can rise significantly, typically reaching between 75°F (24°C) and 85°F (29°C), making it ideal for swimming and other water-based recreation. This is when most swimmers enjoy the river, as the water feels refreshing and pleasant during the heat of the Florida summer. The slower-moving sections of the river near Deltona are more suitable for swimming, though, like many other natural bodies of water, there can be concerns about water quality, especially after rainfall or during algal blooms.

While the St. Johns River offers a great opportunity for swimming in the warmer months, it is essential to be mindful of its natural conditions. Strong currents and the presence of alligators in certain areas make it important for swimmers to choose designated, safer spots. For those who prefer a more controlled environment, Deltona also has nearby lakes and public pools, where the water temperature is regulated and swimming is often more accessible.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Deltona?
Water Temperature in Deltona today is 27.9°C.
What is the water temperature in Deltona during the summer months?
The water temperature in Deltona in summer fluctuates in the range of 14°C - 33°C.
Is it possible to swim in the St. Johns River in Deltona, and what are the available options for doing so?
Yes, it is possible to swim in the St. Johns River in Deltona. You can swim from the shores or by docking via public boat ramps available across the river.