Werewolves and stargazers are in for a treat tomorrow night with the year's biggest full moon set to brighten the sky.

The full moon, due to rise close to 8pm, will appear about 12 per cent larger than usual, Sky and Space Magazine news editor Dave Reneke said.

When the moon hits your eye like a big pizza pie it will be at the closest point to Earth on its annual orbit, a mere 358,000 kilometres away.

"It's going to be nice, it's going to be one of those big orange/yellow moons that we used to see and not many people remember now," Mr Reneke said.

"What makes it more interesting is it's part optical illusion and part fact.