Where exactly is the st kilda reading taken from? Was keen to get out as iv'e just started to be able to change direction. There was hardly any wind today, kite (14m waroo) kept falling out of the sky. My wind meter was reading around 7-10knots, really was dropping off to almost nothing. Got home and checked the st kilda graph and it read 11 - 16 throughout the duration i was out for today. How accurate is the st kilda wind meter?

cheers

I'm not familiar with that area obviously, but if the meter is on top of a building or other structure it will be affected by a funneling affect. It's like when you stand on top of a hill/dune, the wind is stronger when compared with standing on the beach. The wind will be redirected up and over, generally increasing in strength as a result of hitting the structure/obstacle. The same occurs on the top of a wave.
Another factor can be the height at which the reading is taken. Most readings from Bureau of Met are taken from 10 metres above the ground.

P.S. I'm not a meteorologist, just spent a long time doing wind sports.