Typically, the average weather in Clifden all through the month of September is 13. Average high is typically 18 degrees celsius and a low of 11. Our table below has the full details:
| Month | Degrees Celsius |
|---|---|
| Temperature | 13 |
| High Temperature | 18 |
| Low Temperature | 11 |
Useful Links: Clifden Weather: Average Weather & Yearly Climate