Two sources, two different things
The Ministry of the Interior publishes a fortnightly report with the cumulative number of people who arrived irregularly since 1 January, broken down into the Canary Islands, the Balearics, the mainland, Ceuta and Melilla, sea and land, and the number of boats. The figures are provisional and the Ministry revises them.
Frontex publishes monthly detections of irregular border crossing by route and nationality since 2009. It counts detections, not distinct people: the same person can be counted twice. The two sources measure different things and this site never adds them together.
No daily counter
No daily figure exists. The only rate published here is the actual average of the latest closed fortnight, always labelled as an average.
Arrivals per fortnight
The difference between two consecutive cumulative reports of the same year. When the cumulative total for a zone falls, the source has revised it; the corridor is marked as “revised”, not zero, and the revision is shown.
When the source does not update a figure
The Ministry builds its report page by page and occasionally one page is not refreshed: in the report to 15 September 2026 the Ceuta page was still dated 31 August with the same total. Subtracting would give zero, and publishing that zero would claim nobody reached Ceuta in a fortnight. When a page is dated at the previous cut-off and its figure has not moved, the corridor is shown as “no data” with the date of the last published figure.
Same-date comparisons
Year-on-year changes compare the cumulative total to the same date of the previous year, using the comparison column the Ministry itself publishes (which carries its revised figures). Annual bars compare full years.
How the reports are obtained
Frontex's spreadsheet is downloaded from its Migratory Map. The Ministry's PDFs are downloaded from its press page and parsed automatically; 113 reports are in the series, the latest to 15 September 2026. Every build runs about fifty automated checks before publishing.
Reuse
The data is reproduced under Spain's public-sector information reuse rules (Royal Decree 1495/2011). This site is independent and is not affiliated with, sponsored or endorsed by the Ministry of the Interior or Frontex. The full normalised dataset is available at /data.json. The complete methodology, legal notice and privacy policy are in Spanish: metodología, aviso legal, privacidad.