Holyhead
Neptun covers Holyhead (United Kingdom) through the Environment Agency network. One GET request returns its readings as JSON — in the same shape as every other network Neptun serves, so you write the parsing once.
Source: Environment Agency · Position: 53.3139, -4.6204
Values at build time
| water level | 3.21 m |
Snapshot taken at build time: 14.09.2026 08:45 UTC. Query the API for live values.
Request
curl -H "Authorization: Bearer mapi_YOUR_KEY" \
"https://neptun.marine-api.com/v1/levels?lat=53.3139&lon=-4.6204&radius=5"