GPS interference on 21 September 2025

Home · Days · 21 September 2025

As of , from flights on 21 September 2025: 856 of 20,111 map hexagons with enough traffic to measure (4%) showed high interference, meaning more than one aircraft in ten there reported poor GPS accuracy. The count in the medium band, between 3 and 10%, was 1,517.

Source: GPSInterference.com, https://gpsinterference.com/day/2025-09-21. Free to reuse with this credit and a link.

By region

High-interference hexagons by region, 21 September 2025. Source: GPSInterference.com.
RegionHigh-interference hexagonsShare of the region's hexagons
Baltic Sea22317.3%
Eastern Europe17428.0%
Americas1181.3%
South and Southeast Asia1148.2%
Black Sea9834.6%
East Asian Seas465.8%
Eastern Mediterranean236.1%
Middle East2212.5%
Oceania121.5%
Africa21.0%
Western Europe10.2%
Worldwide8564.3%

Each hexagon is counted once, in the first region listed that holds it; hexagons outside every listed region count in the total only. The region pages count every hexagon inside their own boundaries, which overlap, so they may show higher counts.

0%5%10%15%20%Jul 2023Jan 2024JulJan 2025JulJan 2026Jul 15.8%19 Jun 202511% 0%5%10%15%20%Jan 2024DecNovOct 15.8%19 Jun 202511%

Cite this day

GPSInterference.com, daily summary for 21 September 2025, https://gpsinterference.com/day/2025-09-21

This day's data: https://api.gpsinterference.com/v1/interference/2025-09-21. How to read it.