World sea water temperatures

Water temperature in Crystal River (FL) in September

Is it warm enough to swim in Crystal River in September? Average water temperature in Crystal River in September is 84°F and therefore suitable for comfortable swimming. The warmest sea in Crystal River in September is 88.2°F, and the coldest is 79.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Crystal River

Changes water temperature in Crystal River in September 2025, 2024

To get an accurate forecast for the water temperature in Crystal River for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Crystal River, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
September 184.6°F85.6°F83.3°F87.4°F
September 284.2°F85.8°F81.9°F87.3°F
September 383.7°F86.2°F82°F87.1°F
September 483.7°F85.8°F82°F86.7°F
September 583.5°F85.6°F82.6°F86.7°F
September 682.2°F86°F82.2°F87.6°F
September 784.7°F86.2°F83.1°F87.4°F
September 884.4°F86°F83.1°F86.5°F
September 984.4°F85.8°F83.1°F87.1°F
September 1084.2°F85.6°F83.3°F86.5°F
September 1184°F85.3°F83.1°F85.8°F
September 1283.8°F85.3°F82.8°F86.4°F
September 1381.3°F82.9°F81.3°F86.5°F
September 1481.5°F83.1°F81.3°F87.1°F
September 1581°F82.8°F81°F86.9°F
Day 2025 2024 Min Max
September 1680.6°F82.6°F80.6°F86.7°F
September 1780.8°F83.8°F80.8°F87.8°F
September 1882°F84.4°F82°F87.6°F
September 1982.2°F85.8°F81.9°F87.8°F
September 2083.1°F84.4°F81.9°F88.2°F
September 2182°F85.1°F79.3°F87.8°F
September 2282.6°F84.4°F79.3°F86.2°F
September 2382.8°F85.1°F81°F86.2°F
September 2484.4°F84.9°F81.3°F86°F
September 2585.1°F84.6°F79.9°F86°F
September 2684.7°F84°F79.7°F86.4°F
September 2784.7°F83.8°F79.7°F86.7°F
September 2884.4°F83.1°F79.3°F86.2°F
September 2983.7°F83.1°F79.7°F86.2°F
September 3083.3°F83.1°F79.9°F86.5°F
Crystal River water temp chart in September

Average water temperature in Crystal River in September over a decade

20162017201820192020
84.2°F83.8°F85.8°F84.2°F84.4°F
20212022202320242025
83.7°F83.8°F84°F84.7°F

Crystal River sea state in September

Chart comparing the height of waves in Crystal River in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Crystal River in September

Crystal River water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in September?

Want to know where the water temperature in September is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Fort Island Beach84°F79.3°F88.2°F
Homosassa84°F79.2°F88.3°F
Yankeetown83.8°F79.2°F88°F
Bayport84.2°F79.2°F88.2°F
Spring Hill84.4°F79.2°F88.2°F
Hernando Beach84.4°F79.2°F88.2°F
Hudson84.4°F79.5°F88.2°F
Aripeka84.4°F79.5°F88.2°F
Port Richey84.6°F79.9°F88.2°F
New Port Richey84.7°F80.6°F88.2°F

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Our report for Crystal River is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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