After a storm-soaked Saturday in São Paulo, conditions are expected to improve significantly for race day at Interlagos.
Heavy rain and thunderstorms lashed the region throughout Saturday, with humid air pushing the temperature up to around 28 °C.
By the evening, however, most of the showers had drifted northwards, allowing the circuit to begin drying overnight.
As the night progressed, winds turned to the southeast, bringing a fresh flow of air from the Atlantic Ocean.
This change in wind direction marks the arrival of a cooler, less humid airmass — a welcome relief after the oppressive conditions seen during qualifying.
On Sunday, race day is forecast to be mostly sunny with patches of stacked cumulus cloud drifting over the circuit from time to time.
The chance of a shower during the grand prix itself now appears low, although brief sprinkles cannot be ruled out entirely, given São Paulo’s typically changeable microclimate.
Temperatures will be noticeably cooler than on Saturday, peaking around 21 °C, several degrees below the seasonal average of 26 °C.
The southeast wind, at times gusting up to 25–30 km/h, may play a role in how cars handle through the more exposed sections of the circuit, particularly through the run up to Turn 1 and the back straight.
Lower humidity and reduced track temperatures could also influence tyre behaviour. Teams are likely to find more stable grip levels compared to Saturday’s slippery sessions, though the cooler conditions may make it trickier to bring tyres up to their optimal working range in the opening laps.
Overall, the 2025 São Paulo Grand Prix looks set to be run under dry, breezy and relatively mild conditions — a welcome respite from the volatile weather that has dominated the build-up to the weekend.
Strategy may still be shaped by wind direction and track evolution, but barring any late surprises from the Brazilian skies, fans can expect a clean, fast race on Sunday afternoon.
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