BE prepared for showers and sunshine, say forecasters, as music fans prepare to head for Glastonbury Festival.

While campers will be granted a few dry days to set up their tents, wet weather is forecast to arrive just as the first bands take to the stage on Friday.

Around 90% of the 135,000 campers are expected to descend on the Michael Eavis's farm in Pilton, Somerset, on Wednesday to see headliners Florence And The Machine, Kanye West and The Who.

Met Office chief meteorologist Paul Gundersen said: "Although conditions are looking changeable, the emphasis is on a good deal of dry weather - Friday could see wet conditions for a time, but Saturday looks to be dry, bright and warm."

There could be some more unsettled weather on Sunday. 

Only eight of the 32 Glastonbury festivals since 1970 have ever been rain-free, with just one in the past 10 years enjoying four dry days of sunshine.

This year temperatures are predicted to hover around 21C and 22C throughout the event.

And John Lee, a forecaster with MeteoGroup, said: "It's looking like the first couple of days at least will be largely dry, Wednesday and Thursday in particular look to be quite fine.

"Unfortunately when the main music starts from Friday, it looks like it's going downhill a bit. We've got lower pressure systems from the Atlantic coming in and there will be rain at times.

"You will need coats and wellies but also a bit of sun cream because obviously the sun is at its strongest at the moment so when the sun does come out between showers, there will be a risk of sun burn.

"It's not going to be a complete washout or mudbath or anything like the scenes we've seen in years gone by."

Half of the festivals have seen widespread mud but particularly bad deluges in 1985, 1997, 2005 and 2007 saw the festival site become an overwhelming mudbath.

The most recent rain-free festival was in 2010 while the highest temperature ever recorded at the festival was 27C in 1984.