Gliders can fly in a wide range of weather conditions. There is a big difference between a ‘flyable day’ (when we can train) and a ‘soarable day’ (which is when the real fun is had!).
Flyable days are when flying is possible and only training and short solo flights occur. In general, the only things which stop gliding are heavy rain, fog and strong winds – most days are flyable.
Soarable days allow for long and/or cross-country flights. A warm summer’s day, big fluffy clouds with cauliflower-like tops make for ideal conditions. Each one of those is formed by a powerful thermal which gliders can use to stay airborne for hours.