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Mar del Plata Waters Near 22°C as Year-End Heat Draws Crowds

Forecasters expect a southerly wind shift to cool the surface in coming days, putting further warming in doubt.

Overview

  • Official gauges at the Muelle de Pescadores registered 21.8°C this week, well above the typical December range near 19–20°C.
  • Very calm conditions with little wave action and minimal sand in suspension have left the water unusually warm and strikingly clear.
  • INIDEP reports show November’s surface average at 17.5°C versus a 16.7°C historical mean, signaling an early-season uptick based on records kept since 2011.
  • Beach attendance has surged for the year-end period, with reservations pointing to strong tourist activity through at least Monday.
  • The National Meteorological Service projects south to southeast winds and cooler air over the weekend, though experts say continued calm heat could still nudge readings toward the 23°C seen in February 2017.