As today looked a bit better than yesterday, but not great, we waited until 11.30 before going up. The prediction was 50/50 as the winds on the other side were still 20knots. However it was the rain which stopped us today. A few pilots managed to get off early, and shortly after us cloudbase came down and nobody could take off until 10-15 minutes had passed. That meant we could play with the cloudbase, find weak lift, and then wingovering down when we got too close to the clouds. A little later it started to rain, only a local drizzle, but over a quite large area. At first it seemed to be stopping, but then it kept raining so they cancelled the task 15 minutes before that start.  Later after mayny pilots landed it cleared, the flying conditions became nice and smooth, and it probably would have been possible to fly the task. Shame, but the weather is hard to predict…