May is widely considered the "sweet spot" for visiting Majorca (Mallorca) in 2026. The weather is pleasant, with daytime temperatures averaging 22°C to 24°C, which is ideal for hiking the Serra de Tramuntana or exploring the historic streets of Palma without the stifling 35°C heat of August. While the sea might still be a bit "refreshing" (around 19°C), the beaches are calm and the massive summer crowds have yet to arrive. You can expect significantly lower hotel rates—often 30% less than peak July prices—and easier access to top-tier restaurants without months of planning. May also sees the island at its greenest, with wildflowers in bloom, making it the perfect month for travelers who prioritize sightseeing, cycling, and "slow travel" over intense heat and party-focused nightlife.