
Is it warm enough to swim in Grand Isle in November? Average water temperature in Grand Isle in November is 50.7°F and therefore is not suitable for comfortable swimming. The warmest water in Grand Isle in November is 57.7°F, and the coldest is 44.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Grand Isle
To get an accurate forecast for the water temperature in Grand Isle for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Grand Isle, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of November.
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| November 1 | 54.7°F | 55.2°F | 52.5°F | 57.7°F |
| November 2 | 54°F | 54.7°F | 52.3°F | 56.7°F |
| November 3 | 54.5°F | 54.3°F | 52°F | 56.3°F |
| November 4 | 54.5°F | 54°F | 51.3°F | 55.9°F |
| November 5 | 53.4°F | 54.3°F | 51.4°F | 55.6°F |
| November 6 | 52.5°F | 54°F | 51.1°F | 54.9°F |
| November 7 | 52.9°F | 53.8°F | 50.2°F | 56.1°F |
| November 8 | 52.3°F | 53.6°F | 49.6°F | 55.4°F |
| November 9 | 52°F | 53.2°F | 49.6°F | 55°F |
| November 10 | 51.8°F | 52.9°F | 48.9°F | 54.7°F |
| November 11 | 51.6°F | 52.7°F | 49.1°F | 54°F |
| November 12 | 50.5°F | 51.8°F | 49.3°F | 54.3°F |
| November 13 | 50.5°F | 51.4°F | 49.3°F | 54°F |
| November 14 | 49.6°F | 50.9°F | 48.4°F | 53.1°F |
| November 15 | 48.4°F | 50.2°F | 48.4°F | 52.9°F |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| November 16 | 48.6°F | 50.2°F | 47.8°F | 52.9°F |
| November 17 | 48.6°F | 50.4°F | 47.7°F | 53.1°F |
| November 18 | 47.7°F | 49.8°F | 47.7°F | 52.7°F |
| November 19 | 48.2°F | 50.4°F | 47.8°F | 52.2°F |
| November 20 | 48°F | 49.5°F | 48°F | 52.2°F |
| November 21 | 47.1°F | 49.5°F | 46.2°F | 51.8°F |
| November 22 | 47.3°F | 49.3°F | 46.4°F | 52°F |
| November 23 | 46.6°F | 49.3°F | 46°F | 51.1°F |
| November 24 | 46.2°F | 49.1°F | 45.9°F | 50.7°F |
| November 25 | 45.9°F | 48.4°F | 45.7°F | 50.2°F |
| November 26 | 45.5°F | 48°F | 45.3°F | 49.6°F |
| November 27 | 46.2°F | 47.7°F | 44.6°F | 49.3°F |
| November 28 | 45.9°F | 47.1°F | 44.4°F | 48.9°F |
| November 29 | 45.7°F | 47.1°F | 44.1°F | 48.6°F |
| November 30 | 45.7°F | 46.4°F | 44.2°F | 48.6°F |

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| 2016 | 2017 | 2018 | 2019 | 2020 |
| 52°F | 52°F | 48.6°F | 48.9°F | 49.8°F |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 52°F | 51.6°F | 50°F | 50.9°F | 49.5°F |
You can also view information about water temperature for other months by clicking on the month button below