113 aquatic and bankside vascular plant species have been recorded from the field ditches, rhynes and deep arterial watercourses.A diverse invertebrate fauna is associated in particular with ditches that have a good submerged plant community.The annual mean temperature is approximately 10 °C (50.0 °F).
It elects one Member of Parliament (MP) by the first past the post system of election, and part of the South West England constituency of the European Parliament which elects seven MEPs using the d'Hondt method of party-list proportional representation.
Wedmore has been twinned with Saint-Médard-de-Guizières in Aquitaine, France, since 1975.
The summer months of July and August are the warmest with mean daily maxima of approximately 21 °C (69.8 °F).
In winter mean minimum temperatures of 1 °C (33.8 °F) or 2 °C (35.6 °F) are common.
In the summer the Azores high pressure affects the south-west of England, however convective cloud sometimes forms inland, reducing the number of hours of sunshine.