Generally, average temperature in West Mersea right-through September is 14, with highs being around 20 and low of 12 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 14 |
| High Temperature | 20 |
| Low Temperature | 12 |
Useful Links: West Mersea Weather: Average Weather & Yearly Climate