Mexico — Sea Water Temperature and Annual Ranges
Up-to-date sea water temperatures for the coasts of Mexico. Learn about today’s conditions, monthly averages, and how the surrounding seas and oceans vary by season. We find every place where you can swim and show you the water temperature there today and throughout the year.
Sea Water Temperature Along the Coast
Chart of Average Temperature Changes Over the Last 60 Days
Places with the Warmest Sea Water Today
The Most Popular Seaside Places
Coastal Seas and Oceans
Water Temperature and Swimming Overview
Regions and Map
Water Temperature Trends
Mexico’s long coastline spans the Pacific Ocean, the Gulf of California (Sea of Cortez), the Gulf of Mexico and the Caribbean, so sea temperatures vary by region and season. On the Caribbean coast and around Cancún and the Riviera Maya, water remains warm year‑round, typically about 26–30 °C (79–86 °F), with only modest seasonal change. The Gulf of Mexico and Veracruz area see somewhat greater variation, roughly 20–28 °C (68–82 °F) from winter to late summer. The Pacific coast is more variable: southern Pacific resorts such as Acapulco and Puerto Escondido often register 26–30 °C (79–86 °F) in summer and slightly cooler in winter, while the northern Pacific and Baja California beaches can be cooler, ranging from about 15–24 °C (59–75 °F) depending on currents and the season. The Sea of Cortez tends to be warmer than the open Pacific, commonly between 22–30 °C (72–86 °F).
Swimming Conditions
Swimming is widely permitted and popular at Mexico’s beaches, buoyed by warm tropical waters in many tourist areas and lifeguarded public beaches. However conditions sometimes lead authorities to advise against entering the water: strong rip currents are common on certain Pacific and open-ocean beaches, seasonal storms and hurricanes can make swimming dangerous during late summer and autumn, and localized pollution events or algal blooms can prompt temporary closures. In cooler northern waters, wetsuits are advisable for comfort and safety. Visitors should observe posted warnings, check local advisories and follow lifeguard instructions to determine when swimming is allowed and safe.