Tide Times UK: CoastClock

UK tide times at a glance, with named reference gauges and forecasts that work offline.

CoastClock opens directly to your selected named UK reference gauge. Check the next-tide countdown, whether the tide is rising or falling, the next high and low, a 24-hour relative curve, and the day’s tide events.

Plan Offline

Core harmonic predictions work without a connection, so you can review tide times before leaving home or when coastal reception is poor. Free planning covers seven days; CoastClock Pro extends the date range to 365 days.

Honest Uk Coverage

Choose from 45 named UK reference gauges derived from the CC BY 4.0 TICON harmonic dataset, with names sourced from NTSLF/BODC. CoastClock always shows which reference gauge you selected. It does not pretend every beach is a separate measured station.

Optional Live Context

Where a matching gauge is available, CoastClock shows the latest Environment Agency real-time tide observation, its timestamp, datum, and stale status. If the live service is unavailable, your offline forecast remains available.

Built for Coast Days

Search a map and list, match your nearest supported gauge on device, save favourite places, add the next tide to your Home Screen or Lock Screen, and schedule high- or low-tide alerts with Pro.

Free

• Seven-day tide forecasts
• One saved place
• Live gauge readings where available
• Real next-tide widgets with a Pro blur

Coastclock Pro

• 365-day tide forecasts
• Up to ten saved places
• Independent high- and low-tide alerts
• Clear widgets

CoastClock contains no advertising.

CoastClock is a planning aid. It is not for navigation or safety-critical decisions and does not provide marine weather, tidal streams, or currents. Always use the appropriate official information and local guidance for your activity.

Predictions: TICON dataset (CC BY 4.0). Live observations: Environment Agency real-time tide gauge API (Beta), Open Government Licence.

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