About This Tide Data

Data Source: Tide predictions provided by tides.today, based on astronomical calculations and tidal modelling. (Update if Cornwall One uses a different provider.)

Accuracy: Tide predictions are typically accurate within ±10–15 minutes and ±0.3 metres under normal conditions. However, actual tide times and heights can be significantly affected by:

• Strong winds (particularly onshore winds)
• Atmospheric pressure changes
• Storm surges and severe weather conditions
• Local geographical factors

For Safety-Critical Decisions

Always verify tide information from multiple official sources before engaging in water activities or coastal exploration:

• UK Hydrographic Office (EasyTide) – Official UK Government source
• Met Office Marine Forecasts
• Local coastguard updates and beach warning signage

Critical Safety Warnings

• Leave beaches 2+ hours before high tide if you need to walk around headlands
• Never cross the Gannel when water is above knee height
• Check weather forecasts alongside tide times – storms can raise tides significantly
• Supervise children at all times near water
• Call 999 immediately if you get cut off by the tide

Cornwall One (or full legal entity, e.g. Cornwall One Ltd) provides this information for general planning purposes only and accepts no liability for consequences arising from its use. Users are responsible for verifying information and assessing their own safety before engaging in coastal activities.

Last Updated: June 2026 | Next Review: September 2026

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⚠️ Important Safety Information

About Our Tide Data

Tide times and heights shown on Cornwall One are predictions based on astronomical calculations and tidal modelling. Predictions are typically accurate to within ±10–15 minutes and ±0.3 metres under normal conditions. However, actual conditions can differ significantly due to:

• Strong winds (particularly onshore winds)
• Atmospheric pressure changes
• Storm surges and severe weather
• Local geographical factors such as estuaries, sandbars and headlands

Verify Before You Go

Tide information on this site is provided for general planning purposes only. Before any water-based or coastal activity, always check official sources:

• UK Hydrographic Office (EasyTide) – Official UK Government tide predictions
• Met Office Marine Forecasts
• Local coastguard updates and beach warning signage

Stay Safe on the Coast

• Plan to leave beaches well before high tide — many coves and beaches become cut off as the tide rises
• Be aware that tidal estuaries and river crossings can become dangerous quickly
• Check the weather forecast alongside tide times — storms and strong winds can raise water levels significantly above predictions
• Supervise children at all times near water
• If you are cut off by the tide or see someone in difficulty, call 999 and ask for the Coastguard

Disclaimer

Cornwall One provides tide information for general guidance only and accepts no liability for any loss, injury or damage arising from its use. Users are solely responsible for verifying tide and weather conditions and assessing their own safety before engaging in any coastal activity.