Kirkwall Pier · now4.62mRising. Next high water 14:08 at 4.87 m.
Fourteen stations, six-minute intervals, no key required
Predicted and observed sea level for the northern network, published continuously since 1994. The full archive is open, the licence is permissive, and the API has no rate limit worth mentioning.
Coverage
Fourteen gauges from Scrabster to North Ronaldsay, each with at least eleven years of continuous record.
Latency
Observations appear within ninety seconds of the gauge reporting. Predictions are computed a year ahead.
Licence
Open Government Licence. Attribution appreciated, redistribution unrestricted, commercial use fine.
How to get it
| Live JSON | /v2/station/4417/latest | Single reading, six-minute cadence |
| Series CSV | /v2/station/4417/series | Up to five years per request |
| Predictions | /v2/station/4417/predict | Any window inside the next 366 days |
| Bulk archive | /archive/2026.tar.zst | Whole network, one year, 4.1 GB |
No registration. If you are pulling the whole archive nightly, please use the bulk file rather than the series endpoint — it is cheaper for both of us.