Datasets
What we computed from state sources and published as files. Any use, commercial included, provided the source is credited with a link.
Winter openness of coastal towns
How much of a town runs in January against its own yearly peak — 132 places, from monthly Seguridad Social records for 2025.
Bathing water quality, 1990–2024
Water quality class for every beach across thirty-five seasons, tied to the town rather than the province.
What the people already renting pay
Median rent under live tenancies from 2024 tax records — not the asking price.
Monthly sea temperature, place by place
The 2015–2024 monthly water normal for each of 132 places — from NOAA's daily grid, not one figure per coast.
Who is registered, by nationality
The municipal register on 1 January 2025: how many people of each nationality are recorded in every coastal municipality.
How much housing sits empty
The share of housing that is not a main home and the share standing empty by electricity meter — the 2021 census. Tourist flats and income alongside.
Each dataset has a page with its method, its validation and a machine-readable file. The method is published with the numbers for a reason: a figure whose derivation is unknown cannot be checked, and what cannot be checked cannot be cited.