Lake Harney — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Harney, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Harney today is 26.9°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 4 | 28.3°C | 29.0°C | |
| AUG 5 | 28.1°C | 29.0°C | |
| AUG 6 | 28.1°C | 29.0°C | |
| AUG 7 | 28.2°C | 29.0°C | |
| AUG 8 | 28.2°C | 29.0°C | |
| AUG 9 | 28.2°C | 29.0°C | |
| AUG 10 | 28.2°C | 29.0°C | |
| AUG 11 | 26.9°C | 29.0°C | |
| AUG 12 | 29.0°C | 27.0°C | |
| AUG 13 | 29.0°C | 27.1°C | |
| AUG 14 | 29.0°C | 27.2°C | |
| AUG 15 | 29.0°C | 27.3°C | |
| AUG 16 | 29.0°C | 27.4°C | |
| AUG 17 | 29.0°C | 27.5°C | |
| AUG 18 | 29.0°C | 27.6°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 | 18°C | 24°C | 29°C |
| February | 15°C | 23°C | 30°C |
| March | 19°C | 25°C | 31°C |
| April | 20°C | 26°C | 31°C |
| May | 24°C | 29°C | 32°C |
| June | 26°C | 30°C | 33°C |
| July | 25°C | 32°C | 38°C |
| August | 25°C | 29°C | 33°C |
| September | 27°C | 31°C | 35°C |
| October | 25°C | 29°C | 33°C |
| November | 21°C | 27°C | 31°C |
| December | 18°C | 24°C | 29°C |
Lake Harney: Water Temperature by Location
Lake Harney: Weather Forecast
August 12
August 13
August 14
August 15
Location & Local Information
Lake Harney, a shallow, river-influenced lake in central Florida, experiences a wide annual range of water temperatures. In winter (December–February) surface temperatures commonly fall into the 50–68°F (10–20°C) range, though cold snaps can push readings a few degrees lower. Spring (March–May) typically warms the lake to roughly 65–78°F (18–26°C). Summer months (June–August) are the warmest, with surface temperatures frequently between 78–92°F (26–33°C), especially during prolonged heat and low wind; deeper or shaded areas will be a few degrees cooler. Fall (September–November) usually sees a gradual decline, with waters around 70–82°F (21–28°C). These values vary with weather, cloud cover, river flow and depth, so local measurements will change day to day.
Swimming in Lake Harney is possible but not formally organized: the lake lacks widely maintained, lifeguarded public beaches and is primarily used for boating, fishing and wildlife habitat. Because of that, and due to factors such as variable water quality, submerged vegetation, boat traffic, and the presence of alligators and other wildlife, recreational swimming is undertaken at individual risk and is often discouraged by local authorities. Anyone considering swimming should check current local advisories, be mindful of hazards, and take appropriate safety precautions.