Typically, you can expect that the weather in Derry right-through October is 9 with usual highs being around 16 with low daily temperautes being 6. We have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 9 |
| High Temperature | 16 |
| Low Temperature | 6 |
Useful Links: Derry Weather: Average Weather & Yearly Climate