Heat and Storm Risks for Paraíba Valley on New Year's Day

The first day of 2026 in the Paraíba Valley region will be characterized by typical summer weather, featuring high temperatures but with a significant risk of rain showers. According to data from the National Institute for Space Research (INPE), maximum temperatures will remain high but within the seasonal average.

Major cities like Taubaté and São José dos Campos are expected to reach 31°C, while popular tourist destinations such as Caraguatatuba and Ubatuba could see temperatures between 32°C and 33°C. The Serra da Mantiqueira region will experience milder conditions, with Campos do Jordão reaching 25°C.

Despite the heat, the passage of cold fronts will bring scattered storms. Authorities including the National Institute of Meteorology (INMET) and the São Paulo Civil Defense have issued alerts for potential hazards. The São Paulo State Government has mobilized a crisis cabinet to manage emergency responses throughout the week.

The first day of 2026 will bring typical summer conditions to the entire Vale do Paraíba region. The weather will be marked by heat, though temperatures will remain within the normal range for this time of year.

Population centers in the region will experience significant warmth. Cities with the largest populations, specifically Taubaté and São José dos Campos, are projected to reach maximum temperatures of 31°C.

Tourist destinations typically sought after during the summer season will see slightly higher temperatures. Municipalities such as Caraguatatuba and Ubatuba may achieve marks between 32°C and 33°C.

In contrast, the Serra da Mantiqueira area, known for its milder climate, will register lower temperatures. Campos do Jordão is expected to stop at 25°C.

Even with the presence of heat, the day is expected to be marked by sun between clouds due to the passage of cold fronts through the region during the week. These phenomena can also provoke storms in all cities.

Rain is anticipated to fall in the form of showers without significant accumulation. However, both the National Institute of Meteorology (INMET) and the São Paulo Civil Defense have issued alerts regarding the risks caused by the rain.

According to INMET, there is a possibility of:

• Intense winds
• Hail
• Falling trees
• Power outages
• Crop damage
• Flooding

The São Paulo Civil Defense has classified the North Coast of São Paulo as having a risk of very high rain accumulation between January 1st and 4th, 2026. The Vale do Paraíba and Serra da Mantiqueira are at a level below alert, with forecasts of high accumulation.

Due to the prediction of strong storms, the São Paulo Government has mobilized the crisis cabinet. Throughout the week, agencies responsible for emergency response will be gathered at the Civil Defense headquarters to handle serious incidents.

Authorities have issued specific safety recommendations for residents and visitors during this period of weather instability.

For Drivers:

• Avoid driving through flooded areas
• Reduce speed on wet roads
• Maintain a safe distance between vehicles
• Find a safe place to stop in case of low visibility

For Beachgoers:

• Avoid staying on the sand strip during storms
• Do not enter the sea in adverse conditions
• Seek shelter in safe locations

During Lightning Storms:

• Exit the water immediately
• Move away from open areas, including country houses, farms, or pool leisure areas
• Leave the pool immediately
• Avoid open areas and stay away from trees, posts, or metal structures
• Seek shelter in safe, covered locations
• Suspend outdoor activities during lightning occurrences