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Historical surf replay

St Ives Bay surf conditions on Sun, Aug 30, 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.

Surf Day Summary

AI-generated summary. Hog Says

There were moderate, well-aligned waves at Godrevy and Gwithian, but they were messy rather than clean: the model’s five-second wind sea and cross-onshore winds dominated, despite moderate swell energy. Observations confirmed a rising, mixed-period sea, with Perranporth recording a longer nine-second peak period.

Generated from the completed forecast and observations shown on this page.

Day at a glance

Forecast and observations in their coastal context

Predicted at Godrevy

Last stored wave forecast

Primary swell height
0.1–5.9 ft
Primary swell period
2.1–12.3s
Primary swell direction
WNW 294°
well aligned with this coast
Combined sea height
3.8–8.1 ft
Combined sea period
4.6–5.8s
Combined sea direction
W 277°

Wind mostly south-westerly

SW 232°cross-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
3–19 mph

Wind mostly south-westerly

SSW 211°cross-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
3.9–8.5 ft
Average period
6.7–7.4s
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
3.6–7.9 ft
Peak period
7.7–10.5s
Peak wave direction
W 270°
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 8 mph lighter than the last stored forecast.

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

Observed wind at SSW 211° was cross-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

Metrics are rows; hours run left to right. Times use your device time zone.
Hourly forecast and observation values
Metric
Godrevy Primary swell height (ft)5.25.95.65.35.04.94.84.63.42.20.90.70.40.10.20.30.40.40.40.41.21.92.73.0
Primary swell period (s)8.18.68.68.68.68.78.78.87.56.24.94.03.02.15.58.912.312.112.011.910.18.46.77.0
Primary swell directionW 271°W 272°W 272°W 271°W 271°W 269°W 267°W 265°WNW 294°NW 323°N 352°N 354°N 356°N 358°NNW 336°NW 314°WNW 292°WNW 292°WNW 291°WNW 290°W 281°W 271°W 261°W 262°
Godrevy Combined sea height (ft)5.95.75.35.04.64.34.13.93.83.94.04.24.55.05.45.65.76.06.46.87.17.37.88.1
Combined sea period (s)5.04.94.84.74.64.64.64.64.64.64.64.64.74.74.85.05.15.35.45.55.65.75.85.8
Combined sea directionWNW 283°WNW 282°WNW 281°WNW 281°WNW 282°WNW 282°WNW 283°WNW 284°WNW 282°W 280°W 276°W 273°W 269°W 267°W 267°W 269°W 271°W 271°W 272°W 273°W 276°W 278°W 280°WNW 282°
Godrevy forecast weather (3-hourly)
Godrevy forecast wind (mph)15WSW14WSW14WSW14SW14SW15SW15SW15SW17SW18SW20SSW21SSW22SSW24SSW23SW21SW20SW22SW24SW25SW25WSW25WSW25W24W
Observed weather
Observed wind (mph)6SSW7SW6SSW3S6SSW9SSW8SSW8S10SW14SSW17SSW19S19S18SW10S16SW16SW19SW17SW19SW15WSW13SW14WSW10SW
Sevenstones Significant wave height (ft)5.96.26.95.95.95.64.94.64.33.94.34.95.25.26.66.96.97.58.28.57.97.27.58.2
Sevenstones Observed wave period (s)7.47.37.46.86.97.06.77.06.96.77.06.96.86.77.27.47.27.27.27.17.27.17.37.2
Sevenstones Observed wave directionUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailable
Perranporth Significant wave height (ft)5.75.96.05.95.74.74.84.94.54.04.03.53.44.14.95.35.45.25.65.56.57.27.37.9
Perranporth Observed wave period (s)10.09.19.19.19.18.38.38.39.18.310.010.010.010.09.19.17.77.710.510.010.010.010.010.0
Perranporth Observed wave directionW 276°W 274°W 273°W 273°W 262°W 267°WSW 246°W 264°W 262°W 277°W 266°W 273°W 276°W 280°W 274°W 273°W 263°W 260°W 273°W 273°W 270°W 266°W 270°WNW 283°

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