Sea TemperaturesLong Key Sea Temperature in September
Looking to find out what the average sea water temperature in Long Key is for September? Find out what the lowest, highest, and average water temperatures are for Long Key over the past 10 years.
Average water temperature in Long Key for September
The average, high, and low temperatures below should help you if you can swim in the water in Long Key in September.
Average
30.17° C
86.31° F
High
32.04° C
89.67° F
Low
27.28° C
81.1° F
Water temperature range by day in September in Long Key
The chart below shows the range of low and high temperatures by day for the month of September in Long Key.
Average daily water temperatures in Long Key for September
| Day | Average | Low | High |
|---|---|---|---|
| 1 | 30.28° C | 28.93° C | 31.75° C |
| 2 | 30.38° C | 29.24° C | 31.63° C |
| 3 | 30.26° C | 29.09° C | 31.41° C |
| 4 | 30.2° C | 28.8° C | 31.26° C |
| 5 | 30.23° C | 28.87° C | 31.23° C |
| 6 | 30.28° C | 29.17° C | 31.24° C |
| 7 | 30.36° C | 29.19° C | 31.25° C |
| 8 | 30.36° C | 29.05° C | 31.21° C |
| 9 | 30.35° C | 28.85° C | 31.08° C |
| 10 | 30.21° C | 28.86° C | 31.16° C |
| 11 | 30.24° C | 28.89° C | 31.07° C |
| 12 | 30.27° C | 28.38° C | 31.22° C |
| 13 | 30.36° C | 29.03° C | 31.4° C |
| 14 | 30.36° C | 28.73° C | 31.71° C |
| 15 | 30.33° C | 28.99° C | 31.86° C |
| 16 | 30.46° C | 29.3° C | 32.04° C |
| 17 | 30.47° C | 29.24° C | 31.96° C |
| 18 | 30.4° C | 29.42° C | 31.88° C |
| 19 | 30.33° C | 29.09° C | 31.69° C |
| 20 | 30.27° C | 28.36° C | 31.49° C |
| 21 | 30.18° C | 28.16° C | 31.38° C |
| 22 | 30.13° C | 27.87° C | 31.4° C |
| 23 | 30.01° C | 27.6° C | 31.31° C |
| 24 | 29.87° C | 27.3° C | 30.91° C |
| 25 | 29.92° C | 27.28° C | 30.76° C |
| 26 | 29.95° C | 27.61° C | 31.03° C |
| 27 | 29.78° C | 27.64° C | 31.01° C |
| 28 | 29.62° C | 27.99° C | 30.76° C |
| 29 | 29.61° C | 28.22° C | 30.64° C |
| 30 | 29.43° C | 28.1° C | 30.2° C |
Water temperature in September for locations near Long Key
Data source and citation
Raw data for the calculations made to find the sea surface temperature in Long Key comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.
The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.
If you'd like to use any of the information above in the format it is presented, please use the citation tool below.