Typically, you can expect that the weather in Rennes in January is 6. Average high is typically 8 with lows about 2 degrees. For more context we have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 6 |
| High Temperature | 8 |
| Low Temperature | 2 |
Useful Links: Rennes Weather: Average Weather & Yearly Climate