Buenos Aires, December 1 (NA) – The National Meteorological Service (SMN) has issued its quarterly forecast for the summer of 2025/2026, with projections indicating a season with temperatures above average in Mar del Plata and much of the Buenos Aires Atlantic Coast.
While precipitation is expected to remain within a normal range, and in some areas slightly below the historical average (which exceeds 100 mm monthly), the heat will be the main feature of January and February, anticipating a scenario similar to the hottest summers of recent years, according to SMN reports accessed by the Argentine News Agency.
Reasons for the extra heat: The rise in average temperatures and the frequency of heat waves in the region are due to a combination of large-scale factors and local variables:
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The global average temperature continues to rise, creating a context where warm air intrusions reach higher marks.
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Increase in Sea Temperature. The Atlantic coast has registered an increase in sea surface temperature in recent seasons. Warmer waters near the coast take longer to cool, contributing to maintaining high nighttime temperatures and amplifying the feeling of heat in the city.
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Global Warming. Although a single heat event is not a direct cause of climate change, global warming does increase the probability and intensity of these extreme phenomena.
Atmospheric Blocks and Warm Air Masses According to specialists, extreme heat events are often linked to a phenomenon called an atmospheric block. This implies the presence of a stalled high-pressure system (anticyclone) over the Atlantic Ocean that prevents the normal circulation of air masses.
