In 2026, the weather in Sousse, Tunisia, during April and May is considered the "sweet spot" for Mediterranean travel. In April, spring is in full swing with pleasant daytime highs averaging 22°C (72°F) and cool evenings around 12°C (54°F). You can expect about 8 hours of daily sunshine, though the sea remains a brisk 16°C, making it better for sunbathing than swimming. By May, the region transitions toward summer; daytime temperatures rise to a comfortable 25°C (77°F), and the sun shines for roughly 10 hours a day. Rainfall is minimal during these months, typically occurring on only 4 to 6 days in short bursts. This period avoids the scorching 35°C+ heat of July and August while offering lush green landscapes before the summer dry spell. It is ideal for exploring the Medina or the Ribat without the intense humidity and heavy tourist crowds that arrive later in the season.