Sao Paulo

Is São Paulo Guarulhos Airport turbulent?

São Paulo experiences intense afternoon thunderstorms that develop rapidly during seasonal transitions. Emirates Flight EK261 diverted to Rio in May 2025 when visibility dropped below 2km and ceilings collapsed to 800 feet during an intense storm. December 2025 storms from an extratropical cyclone felled 231 trees in the city and disrupted both major airports.

• Emirates A380 diverted to Rio when São Paulo storm hit during landing
• December 2025 cyclone disrupted flights at both GRU and Congonhas
• Afternoon thunderstorms form when inland heat meets moist air

Why do São Paulo storms form so quickly?

The city's inland location means afternoon heating creates ideal conditions for explosive storm development. Moist air collides with hot urban heat, triggering intense convective cells with minimal warning. Storms can reduce visibility from clear to near-zero in under 30 minutes. The afternoon and early evening departure banks are most vulnerable.

When is the best time to fly from São Paulo?

Brazilian winter (June-August) offers drier, more stable conditions. Morning flights year-round avoid peak afternoon storm activity. Summer (December-March) brings the most intense thunderstorm season. If flying during summer, book early departures and build extra connection time for afternoon flights.