SKIPPER

UK Tides

High & low water

Portsmouth · KHM tide tables ↗UK ports · ADMIRALTY EasyTide ↗Open existing Journey Tides ↗

Predictions are available at the external sources above. Integrated API awaits licence confirmation.

Observed gauge readings · not predictions

Reference and leisure use only. Not for navigation or operational decisions. Gauge readings are not chart depths.

Solent navigation

Training / reference only. Direct lines are not safe routes. Verify positions, depths, hazards and current notices on approved charts.

Short-leg spherical rhumb-line calculation; current assumed constant. No allowance for leeway or variation/deviation. No route or clearance assessment.

Trinity House notices ↗

Tidal streams

Training / reference only. No automatic live stream feed. Use verified tidal diamonds or your tidal atlas.

Spring / neap rate estimate

Linear interpolation only, between mean neap and spring ranges at the reference port. Use matching atlas hour and rates.

Official tidal stream atlases ↗

Constant current vector, no leeway. Set is direction towards.

Buoyage

Study and reference only · International rules / UK Region A · verify official publications.

Lights & Shapes

Study and reference only · International rules / UK Region A · verify official publications.

COLREGs

Study and reference only · International rules / UK Region A · verify official publications.