I live on a small inner Hebridean island (that's in Scotland for those south of the Watford Gap) in the Malin sea area and the shipping forecast is frequently the most accurate for determining what the weather is actually going to be like on a given day. Well, how rainy and windy it's going to be at any rate.
It's certainly better than the Beeb's 5-day forecast on their website, which changes so often for a given day it's more like a slot machine. Still waiting for my "five-suns-in-a-row" payout, mind you. :)