Weather in São Paulo: What to Expect by Season

São Paulo has a subtropical climate with distinct wet and dry seasons, making it a year-round destination with mild variations. The city rarely sees extreme temperatures, but the difference between summer and winter can still shape your experience. If you prefer drier days, visiting São Paulo between April and September will be more comfortable, while the rest of the year brings frequent rain showers.

The warmest months in São Paulo are December through March, when daytime highs reach 27–28 °C, though nights stay mild. The coolest period falls between June and August, with temperatures occasionally dropping to 12–14 °C at night. Even in the cooler months, São Paulo remains pleasant for exploring, with fewer crowds and lower humidity.

Temperatures in São Paulo follow a gentle curve, with the hottest weather in January and February, averaging 23.3–23.5 °C. Daytime highs often climb to 28 °C, while nights cool to around 19–20 °C. By April, the air begins to soften, and by July, the coolest month, the average drops to 17.7 °C, with lows near 12 °C.

The transition months—March, September, and October—offer a balance, with averages between 20–23 °C. Even in the cooler season, São Paulo rarely feels chilly during the day, though evenings can require a light jacket. The city’s elevation tempers the heat, so even in December, temperatures stay manageable for outdoor activities.

São Paulo has a clear wet and dry pattern, with the heaviest rains falling from October to March. January and February are the wettest months, with over 200 mm of rain each, often in short, intense downpours. If you’re visiting during this time, packing a compact umbrella or rain jacket will help you stay comfortable between showers.

From April to September, rainfall drops significantly, with July seeing just 16 mm on average. The dry season brings clearer skies and lower humidity, making it ideal for walking tours and outdoor dining. By October, the rains return gradually, peaking again in December with around 130 mm of precipitation.

For a trip to São Paulo in the wet season (November to March), lightweight, quick-drying clothes are ideal, along with a waterproof layer. Daytime temperatures hover around 25–28 °C, so breathable fabrics will keep you comfortable. A light scarf or shawl can be useful for cooler evenings, especially in March when nights dip to 18–19 °C.

During the dry season (April to September), layers become more important. Mornings and evenings can feel crisp, particularly in June and July, when temperatures drop to 12–14 °C. A light jacket or sweater will come in handy, while daytime remains pleasant at 20–24 °C. Comfortable walking shoes are a must year-round, as São Paulo’s streets and parks invite exploration.