Tu Marea

Tu Marea is a simple yet effective app that lets you check tide predictions for the Cantabrian Sea, the Atlantic Ocean, the Iberian Peninsula, and the Canary Islands. It gets its data directly from the Spanish Navy's Hydrographic Institute. It also displays tidal coefficients, a tide table, and connects to AEMET (the Spanish State Meteorological Agency) to show water temperature, sky conditions, and more.