Weather in Jundiai

Planning a trip to Jundiai? Here you will find the latest weather information, detailed charts, and forecasts to help you better prepare for your journey.

The climate in Jundiai can be described as pleasant and moderately warm, with features of the humid subtropics. Thanks to the city's location, the exhausting heat typical of some other regions of Brazil is rare here. The temperature regime remains quite stable and comfortable for travellers throughout the year, varying from fresh winter evenings to warm summer days.

Two main seasons can be clearly traced in the weather. Summer, which lasts here from December to March, is distinguished by warmth (up to +28°C during the day) and high humidity: this is a period of frequent rains, when precipitation can fall more than 20 days a month. The winter period, from June to August, brings significantly drier and cooler weather. At this time, rains happen extremely rarely, and the air temperature becomes mild: about +23°C during the day, and at night it can drop to +12°C, so a light jacket in the evening will come in handy.

The climate in Jundiai is distinguished by a pleasant mildness, making the city attractive to visit almost all year round. The hottest period falls on the local summer and early autumn, from December to March, when the average air temperature holds at the level of +23.5°C. During the day, the air often warms up to +28°C, creating an atmosphere of real tropical warmth. However, it is worth considering that these months are also the wettest: the number of rainy days in January can reach 23, so an umbrella will become a mandatory accessory for the trip.

The winter season, which lasts from June to August in Brazil, brings long-awaited coolness and dryness. This time is considered the "coldest" of the year, although for many tourists, such weather will seem quite comfortable. Average temperatures drop to +17...+18°C, and precipitation practically ceases — for example, in July, only about two rainy days are recorded. This is the ideal period for long walks and sightseeing without the risk of getting wet or overheating in the sun.

Particular attention should be paid to daily temperature fluctuations, which become especially noticeable in the dry season and early spring. The difference between the daytime heat and night-time coolness can be substantial. For example, in September, the thermometer often soars to +28°C during the day and drops to +16°C at night, while in July, night temperatures can reach a minimum of +11.8°C. Therefore, when planning a trip, it is recommended to take layered clothing with you to feel comfortable both at noon and after sunset.

The nature of precipitation in Jundiai has a distinct seasonality typical of this region of Brazil. The year is clearly divided into a wet summer period and a dry winter season. The main peak of rains falls on the summer months — from December to March. The wettest month is January, when the highest number of days with precipitation is recorded (about 23 days), so travellers should definitely have an umbrella or raincoat with them at this time.

With the arrival of autumn, rains become less frequent, and by winter, predominantly dry weather sets in. The period from June to August is characterized by minimal precipitation. The "driest" month is considered to be July: at this time, the probability of getting caught in the rain is extremely low, as on average only about 2 rainy days are observed for the whole month. This makes the middle of the year an excellent time for those who prefer clear skies and walks in the fresh air.

Since Jundiai is located in a warm climate zone, precipitation here falls exclusively in the form of rain. Snow does not fall in this region even in the coldest months, as minimum temperatures remain sufficiently comfortable. In spring, starting from October, the number of rainy days begins to grow again, marking the gradual return of the wet season.

A trip to Jundiai requires a thoughtful approach to packing your suitcase, as the weather here has distinct seasonality. If you are planning a trip in the summer months (from December to March), when warm weather up to 28°C prevails, give preference to light clothing made of natural breathable fabrics, such as cotton or linen. Since this is the wettest period of the year, when rains can occur more than 20 days a month, be sure to take a reliable umbrella or a compact raincoat that will easily fit in a bag.

For trips in the winter season (from June to August), the wardrobe should be different. Although days remain comfortable and sunny, nights become noticeably cooler, with temperatures dropping to 12–13°C. At this time of year, it is best to use the principle of layering: take jeans, a hoodie, a light sweater, or a windbreaker with you to throw on in the evening. Winter here is dry, so protection from rain will hardly be needed, but warm clothes for morning and evening hours are mandatory.

Regardless of the time of year, do not forget to put comfortable shoes with flat soles in your luggage, as you will surely want to walk a lot. Also remember that the sun in Brazil is active even in the cool months, so sunscreen, sunglasses, and headwear are necessary accessories for protecting your health and ensuring a comfortable holiday.