Overview
- Formula 1’s official São Paulo forecast gives elevated rain probabilities for the weekend (Friday 30%, Saturday 50%, Sunday 40%) and warns that any rain could be significant enough to produce standing water on the circuit.
- Saturday’s qualifying, which starts at 15:00 local time, carries the highest immediate risk of disruption because most forecasts put thunderstorms and heavy showers in the afternoon window before or during the session.
- Brazil’s INMET has issued storm alerts, including an orange alert earlier in the week, and organisers may suspend sessions if lightning or extreme local flooding makes the track unsafe.
- Teams are preparing concrete technical responses such as altered tyre plans, different pit-stop timing and software and power‑unit adjustments for wet running, with Honda specifically highlighting energy harvesting and turbo‑lag management as key concerns in heavy rain.
- Interlagos’ local geography — reservoirs near the track and the circuit’s elevation — helps storms form quickly, a history that has produced dramatic, unpredictable outcomes and could influence title battles and rookie debuts this weekend.