An awning fitted at a 15-degree pitch will self-drain rainwater from the surface. If it is windy refer to the wind class of your awning which will let you know which wind speed the awning is rated for. Many awnings can include a wind speed monitor which will automatically close the awning if the wind speed gets too gusty. Fabrics vary and offer light rain protection. In practice, this means all sorts of weather, but we can advise on the limitations of your awning fabric choice. Guarantees do not cover your awning if left open during weather outside its operational rating.