I have this issue too. live at woody point on the beach. check internet sites, all diferent. Often well under how much the wind is blowing when you walk down to the beach. generally the wind direction I feel is right or close enough with the breeze n other sites but often says under 10kn and you know its blowing alot more.

PredictWind is very good also, but it's a subscription service

I used to think willyweather was OK, but it tends to overestimate wind strength - maybe it's giving gusts?
I use seabreeze mainly but also occasionally buoyweather or even look at the earth wind map if trying to work out what's going on a few days in advance (which currently has a 0% success rate).
The best indicator I've got is when I carry my 14'er to the beach: If I get to the T intersection (parallel with coast) and I struggle to get the board across due to the wind, then I know it's going to be a good day

+1 for MetEye, found it to be very accurate the majority of the time.