Campos do Jordão recorded its lowest temperatures of the year this week, waking the municipality with frost [1].
This weather event marks an unusual temperature drop for the region, affecting the interior of São Paulo state. The presence of frost and record-breaking cold in the Serra da Mantiqueira highlights the volatility of regional weather patterns during the current cold front.
Data reported by the Defesa Civil do Estado de São Paulo and INMET indicate the region faced a series of temperature drops. On May 12, 2025, reports on the specific low varied by source. CNN Brasil said the temperature was 2.1°C [1], while FolhaPress via MSN said the low for that day was 2.7°C [3].
The cold persisted into the following day. On May 13, 2025, the city recorded a temperature of 1.6°C [2]. This reading marked the third consecutive day of record cold for the municipality [2].
The temperature drops were caused by a cold front moving through the region, which brought the frost that covered the city. Officials from the state Civil Defense monitored the conditions as the area experienced its most significant chill of the year [1], [2], [3].
Residents and visitors in the mountain town dealt with the freezing conditions as the cold front lingered. The impact of such low temperatures in the interior of São Paulo often affects local agriculture, and tourism in the Serra da Mantiqueira region.
“Campos do Jordão recorded its lowest temperatures of the year this week.”
The occurrence of frost and record-low temperatures in May suggests a strong polar air mass penetration into the Brazilian highlands. While Campos do Jordão is known for its cooler climate, these specific readings—dipping below 2°C—represent extreme weather that can impact local crop yields and increase energy demand for heating in the São Paulo interior.
