Weather in Piracicaba

Find out everything about the weather conditions in the city of Piracicaba before you begin your journey. Below are up-to-date summaries, detailed forecasts, and charts to help you plan the perfect day.

The climate in Piracicaba can be described as tropical, with distinct rainfall seasonality. In general, the weather here is warm and favourable for tourism all year round, but travellers should consider the differences between the wet and dry periods when planning a trip.

The summer months (from December to March) are hot and humid here. Daytime temperatures often hover around 29–30°C, while nights remain warm. This time of year coincides with the rainy season: rainfall occurs frequently, bringing freshness and maintaining the region's lush vegetation.

Winter, which lasts from June to August in Brazil, is conversely characterised by dry and clear weather. Precipitation during this period is minimal — for example, in July there may be just one rainy day. During the day, it remains comfortable and sunny (around 25–26°C), however, nights become noticeably cooler, and the temperature can drop to 12–14°C, so packing a light jacket would not be amiss.

The climate in Piracicaba is characterised as warm, with a distinct hot season that lasts for most of the year. The highest temperatures are observed during the Southern Hemisphere summer months (December to February) and early autumn, when averages hold around 25°C. September often holds the record for daytime heat: in this month, the air can warm up to 31°C, making this period one of the sultriest of the year.

Winter, falling in June, July, and August, brings noticeable relief from the heat while remaining mild and comfortable. July is usually the coolest month: the average temperature drops to 19.3°C. At this time, nights become quite fresh, with minimums around 12–13°C, yet during the day the sun still warms actively, raising the temperature to a pleasant 25–26°C.

A characteristic feature of the local climate, especially during the winter and spring periods, is the significant difference between day and night temperatures. The range can reach 13–14 degrees: a cool night follows a hot day. If you plan a trip in the middle of the year, it is worth bringing warm clothes for evening walks, whereas in summer, nights remain warm, rarely cooling below 20°C.

The climate in Piracicaba is characterised by a clearly defined division into wet and dry seasons, which is typical for this region of Brazil. The rainiest period falls during the summer months and early autumn — from December to March. January leads in rainfall frequency, when it can rain for up to 21 days. In February and March, the number of rainy days also remains high (16–18 days), so an umbrella will become an essential accessory for a trip at this time of year.

In winter, the situation changes radically, and the dry season arrives in the city. From June to August, precipitation becomes a rare phenomenon. July is considered the driest month: statistics show on average only one rainy day for the entire month and minimal rainfall. This time of year is excellent for long walks and sightseeing under a clear sky without fear of sudden downpours.

Transitional seasons, such as April and October, demonstrate a gradual change in weather conditions. While in April rains occur less frequently (about 7 days), by October humidity starts to rise again, and the number of rainy days increases to 14. There is no snow in Piracicaba, so precipitation falls exclusively as rain, the intensity of which varies from light drizzle to tropical downpours at the height of the wet season.

Packing for Piracicaba largely depends on the time of year, but the foundation of your luggage should always be light and comfortable clothing. Since the climate here is predominantly warm, opt for natural breathable fabrics such as cotton and linen. During the summer months (December to March), when temperatures often reach +30°C and there are many rainy days, be sure to bring a compact umbrella or a light raincoat, as well as a spare pair of shoes that dry quickly.

If you are planning a trip during the winter period (June to August), consider the daily temperature variation. Days remain pleasant and warm, but nights can be quite cool, with temperatures around +13°C. For this season, it is best to use the layering principle: bring jeans, long-sleeved t-shirts, and a light jacket or sweater for evening strolls. Winter here is dry, so rain protection is unlikely to be needed, but moisturiser will come in handy.

Regardless of the season, the Brazilian sun remains active, so your suitcase must contain high-factor sunscreen, a hat, and quality sunglasses. For comfortable exploration of city sights and walks along the Piracicaba River, choose tried-and-tested comfortable flat shoes in which your feet will not get tired after long walks.