Tunisia — Sea Water Temperature and Annual Ranges
Up-to-date sea water temperatures for the coasts of Tunisia. 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
Tunisia’s coastline along the Mediterranean offers a range of sea temperatures that change with the seasons and latitude. In winter (December–February) surface waters typically sit between about 13 and 17 °C (55–63 °F), with the coldest values in the northern stretches; spring (March–May) brings a gradual rise to roughly 15–20 °C (59–68 °F). Summer (June–August) is by far the warmest period for swimming, when coastal waters commonly reach 22–28 °C (72–82 °F), and the warmest readings are found along the southeastern and central shores. Autumn (September–November) remains pleasant for sea bathing, with temperatures generally in the 20–24 °C (68–75 °F) range as the sea slowly cools.
Swimming Conditions
Swimming is widely available and popular in Tunisia for much of the year, especially from late spring through early autumn when water temperatures are most comfortable for prolonged immersion. Public beaches and resort areas are open and lifeguarded in many places during the high season, and sheltered bays or southern spots can feel warm enough for swims even outside peak months. In winter and cooler shoulder seasons water feels quite brisk and many visitors use wetsuits or limit time in the sea; local advisories or posted signs should always be followed because conditions such as wind, currents or seasonal marine life can affect safety. Overall, Tunisia’s coast provides excellent swimming opportunities when local conditions and temperatures are suitable for the swimmer’s comfort and experience.