Skip to content
Surfhog home

Historical surf replay

St Ives Bay surf conditions on Wed, Aug 19, 2026

Godrevy wave and weather forecasts and weather observations, with Sevenstones offshore and Perranporth inshore wave readings. Each source keeps its own location and role so the view provides coastal context without presenting nearby buoy readings as measurements at the surf break.

Day at a glance

Forecast and observations in their coastal context

Predicted at Godrevy

Last stored wave forecast

Primary swell height
0.3–1.2 ft
Primary swell period
13.9–17.3s
Primary swell direction
WSW 246°
angled into this coast
Combined sea height
3.3–6.9 ft
Combined sea period
3.9–5.2s
Combined sea direction
WNW 289°

Wind mostly westerly

W 280°onshore

24 stored hourly values. This is the final stored revision, not necessarily the forecast first issued for the day.

Observed in west Cornwall

Godrevy wind and weather

Wind speed
3–18 mph

Wind mostly westerly

W 268°onshore

24 observations. Godrevy is close enough to provide useful regional wind context for both coasts, although local effects can differ. Explore all weather readings.

Incoming Atlantic swell

Sevenstones

Significant wave height
3–6.2 ft
Average period
6–7.3s
Reported wave direction
Unavailable
Exposure unavailable

24 readings. rising height trend; medium confidence from metoffice. Open the Sevenstones archive.

Nearby north-coast inshore response

Perranporth

Significant wave height
3.3–6.6 ft
Peak period
4.3–11.1s
Peak wave direction
WNW 282°
well aligned with this coast

48 readings. rising height trend; high confidence from cco. Open the Perranporth archive.

How the stored wind forecast compared

Observed average wind was 7 mph lighter than the last stored forecast.

Forecast: wind mostly westerly; observed: wind mostly westerly.

Observed wind at W 268° was onshore for Godrevy and Gwithian.

These sources describe different locations and exposures. Offshore and inshore buoy readings provide context for St Ives Bay; they are not measurements taken at the surf break itself. Directional labels use Godrevy and Gwithian as a representative north-west-facing swell window; individual peaks and beaches can differ.

Hour-by-hour replay

The charts share the same time axis so offshore signals, inshore readings and regional wind can be compared without treating them as the same measurement location.

Two line charts show wave height and wind speed through the selected day for St Ives Bay. The detailed table following the charts contains the same values in text form.

Swell and sea height through the day

Wind speed through the day

St. Ives high/low predictions show stored UK local times in the hour they occur. Hourly heights marked ≈ are smooth estimates between those events, not official hourly predictions or observed water levels. Event values marked ≈ have approximate or unspecified source precision. A dash means no event or no supported estimate.

Metrics are rows; hours run left to right. Times use your device time zone.
Hourly forecast, observation and tide values
Metric
St. Ives tide height, estimated (ft)Approximately 15.5Approximately 12.5Approximately 9.4Approximately 7.1Approximately 6.0Approximately 6.4Approximately 8.3Approximately 11.2Approximately 14.2Approximately 16.6Approximately 17.6Approximately 17.2Approximately 15.5Approximately 13.0Approximately 10.3Approximately 8.0Approximately 6.8Approximately 6.8Approximately 8.2Approximately 10.6Approximately 13.3Approximately 15.7Approximately 17.0Approximately 17.0
St. Ives tide (ft)
LowHeight precision not recorded: 5.9
HighHeight precision not recorded: 17.6
LowHeight precision not recorded: 6.6
HighHeight precision not recorded: 17.2
Godrevy Primary swell height (ft)0.90.70.91.01.20.90.60.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3
Primary swell period (s)15.616.115.414.613.915.016.117.317.016.816.516.516.416.416.416.416.416.416.416.416.216.015.915.7
Primary swell directionWSW 250°WSW 248°WSW 251°WSW 254°WSW 256°WSW 252°WSW 248°WSW 244°WSW 244°WSW 244°WSW 245°WSW 245°WSW 244°WSW 244°WSW 244°WSW 243°WSW 243°WSW 243°WSW 243°WSW 243°WSW 243°WSW 242°WSW 242°WSW 241°
Godrevy Combined sea height (ft)3.33.63.73.83.93.93.83.73.63.53.53.73.94.24.54.85.25.66.06.36.66.76.86.9
Combined sea period (s)4.04.14.14.14.14.14.04.04.03.93.94.04.14.24.34.44.54.64.74.85.05.15.25.2
Combined sea directionWNW 291°WNW 290°WNW 289°WNW 289°WNW 289°WNW 288°WNW 288°WNW 289°WNW 290°WNW 292°WNW 293°WNW 293°WNW 292°WNW 290°WNW 289°WNW 288°WNW 287°WNW 286°WNW 286°WNW 286°WNW 287°WNW 288°WNW 289°WNW 290°
Godrevy forecast weather (3-hourly)
Godrevy forecast wind (mph)13W13WSW12W11W10WNW10WNW11WNW12WNW13WNW15WNW16WNW17WNW18WNW19WNW19W20W21W21W21W21W21W21W21W21W
Observed weather
Observed wind (mph)5SW6WSW6SW4SW3SSW6WSW4WSW5W5W9NW11NW11NW13NW13NW13WNW12WNW18W17W15W16W13W10WSW9WSW11W
Sevenstones Significant wave height (ft)3.03.03.03.03.03.03.33.33.33.63.93.63.63.93.63.94.34.64.95.65.65.96.25.2
Sevenstones Observed wave period (s)6.06.16.36.36.36.67.37.16.87.06.96.96.56.06.86.86.97.06.97.36.97.27.07.0
Sevenstones Observed wave directionUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailable
Perranporth Significant wave height (ft)3.83.53.83.94.14.14.44.33.94.04.03.83.64.04.14.85.05.56.16.56.56.46.06.6
Perranporth Observed wave period (s)6.95.95.96.27.75.97.78.08.09.58.78.05.35.75.611.111.18.76.56.77.16.96.97.4
Perranporth Observed wave directionWNW 290°W 278°W 280°WNW 283°WNW 283°W 277°W 280°W 278°W 270°WNW 285°W 269°W 266°WNW 284°W 270°WNW 283°NW 304°WNW 302°WNW 292°W 273°WNW 297°W 271°W 260°W 276°W 274°

Swipe sideways to see more hours.