Skip to content
Surfhog home
Menu

Historical surf replay

St Ives Bay surf conditions on Sat, Aug 22, 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 small, clean waves at Godrevy and Gwithian: the WNW swell was well aligned, but low-energy and short-period, with cross-offshore winds helping shape the surf. Observations broadly confirmed this, showing nearby waves averaging 5.9 seconds at Sevenstones and 5.3 seconds peak at Perranporth.

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
1.1–1.8 ft
Primary swell period
5.5–8.9s
Primary swell direction
WNW 285°
well aligned with this coast
Combined sea height
2–3.2 ft
Combined sea period
3–4s
Combined sea direction
NNW 329°

Wind mostly north-easterly

NE 48°cross-offshore

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
0–14 mph

Wind mostly north-easterly

NE 35°cross-offshore

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
2.3–3.6 ft
Average period
5.3–6.6s
Reported wave direction
Unavailable
Exposure unavailable

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

Nearby north-coast inshore response

Perranporth

Significant wave height
2.3–3.9 ft
Peak period
4.1–6.5s
Peak wave direction
NW 323°
well aligned with this coast

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

How the stored wind forecast compared

Observed average wind was 3 mph lighter than the last stored forecast.

Forecast: wind mostly north-easterly; observed: wind mostly north-easterly.

Observed wind at NE 35° was cross-offshore 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)1.61.71.71.81.81.81.81.81.71.61.51.41.31.31.31.31.41.31.31.31.21.21.11.1
Primary swell period (s)5.75.56.06.46.96.96.96.97.47.98.47.87.36.77.27.78.38.58.78.98.88.88.88.8
Primary swell directionWNW 285°WNW 283°WNW 287°WNW 291°WNW 296°WNW 294°WNW 292°WNW 291°WNW 287°WNW 284°W 281°WNW 282°WNW 283°WNW 284°WNW 284°WNW 283°WNW 283°WNW 282°WNW 281°W 281°W 280°W 280°W 279°W 279°
Godrevy Combined sea height (ft)3.22.92.82.82.82.82.82.82.72.72.62.52.42.32.32.22.12.02.02.02.12.12.12.2
Combined sea period (s)3.84.03.93.93.93.94.04.04.04.04.03.83.73.53.43.33.23.13.13.03.03.03.13.1
Combined sea directionNW 323°NW 318°NW 320°NW 322°NW 325°NNW 326°NNW 327°NNW 328°NNW 328°NNW 327°NNW 327°NNW 327°NNW 327°NNW 328°NNW 329°NNW 330°NNW 331°NNW 332°NNW 333°NNW 335°NNW 336°NNW 337°NNW 339°NNW 341°
Godrevy forecast weather (3-hourly)
Godrevy forecast wind (mph)12N11NE10NE9ENE9ENE8ENE8ENE7E7ENE7ENE7NE9NE10NE11NE11NE12NNE12NNE12NNE13NNE13NE13NE12NE11NE11NE
Observed weather
Observed wind (mph)0N2ESE4E0N4NE4ENE4ENE4E5N4NNE5NNE7N10N10NNE10N14NNE13N14NE11NNE11NNE10NNE8NE4E5ENE
Sevenstones Significant wave height (ft)3.02.62.63.03.03.33.02.63.62.32.32.62.63.02.62.32.32.32.32.62.62.63.02.6
Sevenstones Observed wave period (s)5.96.36.26.05.96.16.06.15.86.36.66.35.96.05.96.05.75.55.75.65.45.35.35.6
Sevenstones Observed wave directionUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailable
Perranporth Significant wave height (ft)3.43.63.73.73.73.33.23.13.13.22.83.03.23.13.33.23.12.92.82.52.32.32.52.8
Perranporth Observed wave period (s)6.55.76.15.75.75.75.75.76.15.46.15.45.35.14.94.55.05.15.14.75.05.34.14.7
Perranporth Observed wave directionWNW 302°WNW 292°WNW 283°NW 311°NW 311°NW 308°NNW 329°NW 305°NW 321°NNW 335°NNW 329°NW 319°NNW 333°NNW 330°NNW 343°NNW 340°NNW 329°NW 318°NNW 345°NW 316°NW 323°NW 316°NNW 345°NNW 328°

Swipe sideways to see more hours.