Typically the weather in Exeter right through September is 13 with highs being 19 degrees with a low of 10. We have provided a clearer breakdown here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 13 |
| High Temperature | 19 |
| Low Temperature | 10 |
| Sunshine Per Day | 6 |
Useful Links: Exeter Weather: Average Weather & Yearly Climate