Last year, the council announced it would look at ways to bring the coastal towns closer together during the next 20 years.

The towns are situated 58 kilometres apart.

Last week, the draft project plan was released and stated that future development would be carried out with Swansea, Coles Bay and Swanwick in mind.

Following suggestions that sea levels would rise in the coming 80 years, the council has opted to raise awareness early.

"The projected change in average temperature is accompanied by a change in the frequency, intensity and duration of hot and cold extremes of temperature," the report read.

The draft structure plan states that the Glamorgan Spring Bay municipality will experience a far greater number of days above 25 degrees, highly infrequent frosts, heat waves, and an increase in sea temperature that will likely have an impact on the ecosystem.

"Based on the higher emissions predictions the municipality is projected to receive up to 20 per cent more rainfall in the autumn and summer by the end of the century," the report said.

"The projected increase in rainfall is primarily driven by the increased sea temperatures offshore and this will lead to unpredictability and a tendency for heavier rainfalls interspersed by longer dry periods."

Sea levels are also estimated to rise in Spring Bay.

"The upper range projections indicate a rise of up to 0.82m in sea level rise by the end of the century.

"This is a rate of around 3.3+0.4 millimetres per year similar to the rise experienced in the recent period."

The need for greater preparation for bushfires and floods in the coming decades has been stressed.