Normally weather temperatures in Isle Au Haut in the course of December is 0. Highs are expected to be 3 degrees celsius and a low of -5 degrees. With the details being further below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 0 |
| High Temperature | 3 |
| Low Temperature | -5 |
Useful Links: Isle Au Haut Weather: Average Weather & Yearly Climate