JENSON Button fears a wet Monaco Grand Prix will be "ten times more dangerous" than any other race, but knows it is his best chance of a points finish.

As you would normally expect of the Cote d'Azur, clear blue skies dominated as Monte Carlo basked in bright, warm sunshine, bathing the onlookers for yesterday's two practice sessions.

Lewis Hamilton may have topped the timesheets, but it is likely to count for nothing as a wet weekend has been forecast, turning the blue riband event of Formula One into a lottery.

Even in the dry conditions, the Enstone-based Renault duo of Fernando Alonso and Nelson Piquet both lost their rear wing, sliding into the barrier as they exited Sainte Devote.

The real concern, though, is a wet race on what would become the skiddy streets of the Principality, driving in cars this season without the aid of traction control and engine braking.

"Looking at the weather forecast for the weekend, it appears it's going to be pretty awful," remarked Button, who was eighth at the end of the two sessions in his Honda.

"If there is rain, it's going to make it ten times more dangerous here than any other circuit because we no longer have traction control."