More often than not the weather in Ploermel right through May is 10. High temperatures are around 17 and lows being 7 degrees. With the details being further below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 10 |
| High Temperature | 17 |
| Low Temperature | 7 |
Useful Links: Ploermel Weather: Average Weather & Yearly Climate