Avoid demonstrations and large crowds follow local authorities and news for location-specific warnings (U.S. Department of State advisory).
Expect rail and metro disruption — check Renfe/TMB service updates and allow extra travel time for trips that use Rodalies or L9/L10 (20minutos reports).
Use caution on public transit, stay near other passengers, report harassment to station staff or police (20minutos metro arrest report).
Monitor local media for smoke/fire or port-area incidents before visiting the port or waterfront avoid the area if an incident is active (20minutos port fire).
Pack a light waterproof layer and umbrella for possible showers on 2026-04-01 and 2026-04-02 expect mild temperatures through early April.
