Water temperature in Isle Royale (MI) in November
Is it warm enough to swim in Isle Royale in November? Average water temperature in Isle Royale in November is 44.1°F and therefore is not suitable for comfortable swimming. The warmest water in Isle Royale in November is 51.3°F, and the coldest is 39°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Isle Royale
Changes water temperature in Isle Royale in November 2025, 2024
To get an accurate forecast for the water temperature in Isle Royale for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Isle Royale, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of November.
You can choose any other years:
| Day |
2025 |
2024 |
Min |
Max |
| November 1 | 49.8°F | 51.3°F | 43°F | 51.3°F |
| November 2 | 49.5°F | 50.9°F | 43°F | 50.9°F |
| November 3 | 48.4°F | 50.7°F | 43°F | 50.9°F |
| November 4 | 46.8°F | 50°F | 42.8°F | 50.4°F |
| November 5 | 47.1°F | 49.3°F | 42.6°F | 50°F |
| November 6 | 47.5°F | 50.2°F | 42.6°F | 50.2°F |
| November 7 | 46.9°F | 49.3°F | 42.4°F | 49.8°F |
| November 8 | 46.4°F | 48.4°F | 42.3°F | 50°F |
| November 9 | 46.4°F | 48.7°F | 42.1°F | 49.8°F |
| November 10 | 46.4°F | 48.4°F | 42.1°F | 50°F |
| November 11 | 46.2°F | 47.3°F | 42.4°F | 50.4°F |
| November 12 | 45.3°F | 47.3°F | 42.4°F | 49.5°F |
| November 13 | 44.6°F | 46.9°F | 42.3°F | 48.7°F |
| November 14 | 44.2°F | 46.2°F | 41.4°F | 48.4°F |
| November 15 | 44.2°F | 46.2°F | 41.4°F | 47.5°F |
| Day |
2025 |
2024 |
Min |
Max |
| November 16 | 43.7°F | 45.9°F | 41.5°F | 48.2°F |
| November 17 | 43.5°F | 46°F | 41°F | 47.7°F |
| November 18 | 43.5°F | 45.5°F | 41.4°F | 47.3°F |
| November 19 | 43.5°F | 45.5°F | 40.6°F | 45.5°F |
| November 20 | 44.1°F | 45.1°F | 40.8°F | 45.5°F |
| November 21 | 43.5°F | 45°F | 41°F | 46.2°F |
| November 22 | 43.2°F | 44.8°F | 41.2°F | 46.8°F |
| November 23 | 43.5°F | 44.6°F | 40.8°F | 45.9°F |
| November 24 | 44.1°F | 43.7°F | 40.5°F | 45.1°F |
| November 25 | 43.5°F | 43°F | 40.3°F | 44.2°F |
| November 26 | 43.2°F | 42.8°F | 40.1°F | 44.2°F |
| November 27 | | 43.5°F | 40.1°F | 44.1°F |
| November 28 | | 43.2°F | 40.1°F | 43.2°F |
| November 29 | | 43.2°F | 40.6°F | 43.2°F |
| November 30 | | 43.2°F | 39°F | 43.3°F |
Average water temperature in Isle Royale in November over a decade
| 2015 | 2016 | 2017 | 2018 | 2019 |
| 44.1°F | 47.1°F | 43.2°F | 41.7°F | 43.5°F |
| 2020 | 2021 | 2022 | 2023 | 2024 |
| 42.8°F | 46.4°F | 43.7°F | 45°F | 46.6°F |
Isle Royale water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
