Tide Times UK: CoastClock
Offline Charts & Predictions
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
UK tide times at a glance. Check the next high or low, plan offline with named reference gauges, and see live readings where available.
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.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://pocketgrove.com/privacy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Corrected tide times and forecast dates when travelling across time zones, including daylight-saving changes.
The developer, Pocket Grove Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Pocket Grove Ltd
- Size
- 12.8 MB
- Category
- Weather
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 4 more
- English, German, Japanese, Korean, Simplified Chinese
- Age Rating
4+
- 4+
- Contains
Messaging and Chat
- In-App Purchases
Yes
- CoastClock Pro Lifetime $14.99
- CoastClock Pro Annual $7.99
- CoastClock Pro Monthly $1.99
- Copyright
- © 2026 Cong Le