What's the sea temperature in Morocco (can you swim)?

Let me set expectations honestly, because the brochures rarely do: Morocco's main coastline is the Atlantic, and the Atlantic here is cool. A cold ocean current runs down the seaboard, which is exactly what keeps Essaouira and Agadir so pleasantly mild on land — but it means the water stays refreshing rather than tropical.

Atlantic sea temperatures hover around 17–19°C for much of the year and peak at roughly 20–22°C in late summer (August into September), which is the best window for swimming. Plenty of people do swim — kids and the hardy plunge in happily — but a lot of visitors find it bracing, and surfers and longer swimmers wear wetsuits year-round. Around Agadir, sheltered and slightly warmer, the water is the most swim-friendly stretch of the Atlantic; Essaouira's wind makes the sea feel cooler still and the chop is better for kitesurfing than for floating about.

If warm-water swimming is a priority, look to the Mediterranean coast in the north — places like Al Hoceima, Saïdia and the Cala Iris area. The Med warms up to a much friendlier 24–26°C in summer (July–September) and the water is calmer and clearer, far closer to the classic beach-holiday experience.

So my practical guidance: come to the Atlantic coast for dramatic beaches, surf, wind sports and that wonderful cool-air escape from the inland heat — and treat swimming as a refreshing dip rather than a warm soak, ideally in late summer. If you're set on warm sea swimming as the centrepiece, build the beach portion of your trip around the Mediterranean north instead.