Civil Defense warns of summer in the Paraíba Valley; temperatures can reach 30°C The Civil Defense of the State of São Paulo warned of the occurrence of a summer between this Saturday (18) and next Friday (24), with temperatures above average and low air humidity in a large part of the state, including in the Paraíba Valley. The phenomenon arrives after a week marked by lower temperatures in the region and should lead to hotter afternoons in the coming days. According to the agency, the effect of an atmospheric block will favor the predominance of dry weather during the period. The mornings should remain mild, but temperatures rise in the afternoon, increasing the temperature range throughout the day. ? Click here to follow the g1 Vale do Paraíba channel and region on WhatsApp Meteorologist Guilherme Borges explains that a mass of hot air is responsible for the change in weather conditions and the rise in temperatures in the region. "The average July temperature in São José dos Campos is around 22°C, but, in the coming days, thermometers should read between 25°C and 27°C, and could reach 30°C in some parts of the Paraíba Valley. This happens because of the action of a warmer air mass, which favors the rise in temperatures in the region," he said. Sunset in São José dos Campos this Friday (17) G1 In addition to the above-average heat, Civil Defense also draws attention to the low relative humidity, which can be below 30% in several regions of the state, increasing the risk of respiratory problems and fires in vegetation areas. In the Valley region, however, it should remain slightly higher. According to Borges, the influence of the hot air mass should also prolong the period of dry weather. "The above-average heat and very low humidity are expected to persist throughout this weekend and also at the beginning of next week. Part of this scenario is the result of the action of this hot air mass, which increases the summer," he stated. Civil Defense advises the population to maintain hydration, avoid physical activity during the hottest times of the day and not carry out fires, due to the increased risk of fires in vegetation areas. See more news from Vale do Paraíba and the Bragantina region