El Salvador — Sea Water Temperature and Annual Ranges
Up-to-date sea water temperatures for the coasts of El Salvador. 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
El Salvador’s Pacific coastline enjoys warm seawater year-round thanks to its tropical location. Typical sea surface temperatures range roughly from about 25–30 °C (77–86 °F) over the course of the year. The coolest months tend to be in the northern winter, roughly December through February, when water temperatures commonly sit around 25–27 °C (77–81 °F). From spring into the wet season and early autumn, March through October, temperatures usually rise to around 27–30 °C (81–86 °F), with occasional local and seasonal variation influenced by coastal currents and larger phenomena such as El Niño or La Niña. Overall the seasonal swing is modest, so waters remain pleasantly warm for most visitors.
Swimming Conditions
Swimming along El Salvador’s beaches is generally permitted and popular, with many bays and sandy beaches suitable for casual bathing, snorkeling near rocky points, and world-class surfing at reefs and breaks. The warm water means wetsuits are rarely necessary for short swims. However, authorities, tour operators, and locals often advise caution because strong rip currents, powerful surf at some breaks, and limited lifeguard coverage in many areas can pose hazards. Water quality can be degraded near urban runoff and after heavy rains, so checking local conditions and warnings is advisable. Seasonal increases in jellyfish or debris can also affect safety. With common-sense precautions—swimming at monitored beaches, observing posted warnings, and asking locals about conditions—swimming along El Salvador’s coast is accessible and enjoyable for most visitors.