The 2025 Belgian Grand Prix at Spa-Francorchamps experienced a delayed start due to heavy rain. After the formation lap, the race director deployed the red flag to suspend the start because of intense rainfall. Weather forecasts had predicted significant rain, with reports indicating strong showers expected imminently before the race. Following more than an hour of waiting, officials confirmed the new race start time at 16:20 local time. This delay affected the scheduled proceedings of the Formula 1 event, which had its starting grid and schedule previously announced. The postponement was officially communicated by race organizers and media outlets covering the event.