Coverage
Every figure below comes from the running database, not from a brochure. Freshness is how long ago each source last delivered content.
Measuring stations
| Network | Country | Stations | Active (2 h) | Freshness |
|---|
| PEGELONLINE (WSV) | Germany | 714 | 703 | 17 min |
| NOAA NDBC | United States | 188 | 115 | 36 min |
| Environment Agency | United Kingdom | 76 | 74 | 61 min |
| DMI | Denmark | 59 | 57 | 26 min |
| SMHI | Sweden | 47 | 5 | 46 min |
| CANDHIS (Cerema) | France | 29 | 25 | 16 min |
| Marine Institute | Ireland | 25 | 0 | 6 h |
| Finnish Meteorological Institute | Finland | 22 | 18 | 46 min |
| Puertos del Estado | Spain | 13 | 13 | 16 min |
| Rijkswaterstaat | Netherlands | 12 | 12 | 36 min |
Locks
| Country | Locks |
|---|
| France | 2,105 |
| Netherlands | 651 |
| Germany | 233 |
| Belgium | 224 |
| Austria | 116 |
| United Kingdom | 46 |
| Ireland | 11 |
| Portugal | 5 |
| Spain | 1 |
Navigational warnings
| Source | Notices | Freshness |
|---|
| Préfecture maritime (FR) | 1,430 | 42 min |
| EuRIS (EU) | 711 | 42 min |
| Guardia Costiera (IT) | 472 | 3 h |
| Rijkswaterstaat (NL) | 397 | 42 min |
| NGA (weltweit) | 369 | 42 min |
| US Coast Guard (US) | 327 | 42 min |
| Canal & River Trust (UK) | 244 | 42 min |
| NAVAREA IX (PK) | 235 | 42 min |
| Canadian Coast Guard (CA) | 224 | 42 min |
| Søfartsstyrelsen (DK) | 183 | 42 min |
| ELWIS/BSH+WSV (DE) | 132 | 42 min |
| SASEMAR (ES) | 105 | 42 min |
| BHMW (PL) | 80 | 5 h |
| HHI (HR) | 65 | 42 min |
| UKHO — NAVAREA I (UK) | 57 | 42 min |
| Instituto Hidrográfico (PT) | 57 | 42 min |
| Transport for NSW (AU) | 53 | 42 min |
| HNHS (GR) | 48 | 6 h |
| Jūras administrācija (LV) | 46 | 12 h |
| SHODB (TR) | 43 | 7 h |
| Japan Coast Guard (JP) | 38 | 42 min |
| SHN (AR) | 28 | 6 h |
| Kystverket (NO) | 27 | 2 days |
| Transpordiamet (EE) | 25 | 42 min |
| Vlaamse Hydrografie (BE) | 24 | 5 h |
| Trinity House (UK) | 21 | 42 min |
| Maritime New Zealand — NAVAREA XIV (NZ) | 21 | 61 min |
| Northern Lighthouse Board (UK) | 17 | 42 min |
| Traficom (FI) | 17 | 42 min |
| Sjöfartsverket (SE) | 16 | 42 min |
| Egyptian Navy Hydrographic Dept (EG) | 16 | 42 min |
| ASP — Notices to Mariners (IL) | 10 | 14 min |
| Uprava pomorske sigurnosti (ME) | 9 | 42 min |
| Irish Lights (IE) | 9 | 42 min |
| TKA (LT) | 8 | 42 min |
| NAVAREA III (ES) | 6 | 42 min |
Also included
- 585,074 seamarks worldwide from OpenStreetMap/OpenSeaMap, rolling refresh, oldest record 27 days.
Community data, not an official source: meant for orientation, not for navigation. The official layer here is the navigational warnings above. Mapping density varies strongly by country. - 24,693 marinas with computed wind shelter.
Derived from coastline and harbour geometry — a calculated rating, not a measured value. - Tides and tidal currents worldwide from FES2022b / FES2014a — model-based, so not limited to a station network
A source that stops delivering freezes visibly here rather than quietly aging — we measure yield, not whether the job ran.
API reference