The answer to this basically comes down to math...
A monthly subscription = $14.99/month
Let's say you are boating only during the spring and summer months (6 months):
$14.99 * 6 months = $89.94
An annual subscription = $79.99/year
$79.99 * 1 year = $79.99
In this scenario, you would save $9.95 and get 6 extra months of Buoyweather Premium by signing up for an annual subscription. Why not get the whole year?
You can start your free trial for a Premium subscription here.