Skip to content
Surfhog home
Menu

Historical surf replay

St Ives Bay surf conditions on Wed, Aug 12, 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
1.4–2.9 ft
Primary swell period
9.3–11.1s
Primary swell direction
W 271°
well aligned with this coast
Combined sea height
1.4–2.2 ft
Combined sea period
2.7–6.9s
Combined sea direction
WNW 287°

Wind veering south-easterly to south-westerly

SSE 152°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
2–19 mph

Wind veering northerly to south-easterly

ESE 123°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
1.6–3 ft
Average period
5.6–8.8s
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
1–2.6 ft
Peak period
7.4–11.1s
Peak wave direction
W 278°
well aligned with this coast

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

How the stored wind forecast compared

Observed average wind was 2 mph stronger than the last stored forecast.

Forecast: wind veering south-easterly to south-westerly; observed: wind veering northerly to south-easterly.

Observed wind at ESE 123° was 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)1.41.71.81.92.02.12.22.42.42.42.52.52.52.62.62.72.72.82.82.82.82.82.82.9
Primary swell period (s)11.110.910.710.610.410.310.210.210.09.89.79.79.69.69.59.59.49.49.39.39.39.49.49.4
Primary swell directionW 279°W 277°W 277°W 276°W 275°W 275°W 274°W 273°W 273°W 272°W 272°W 271°W 271°W 270°W 269°W 268°W 267°W 267°W 267°W 267°W 267°W 267°W 268°W 268°
Godrevy Combined sea height (ft)1.41.61.71.71.61.61.61.71.81.92.02.12.22.22.22.22.12.02.02.01.91.92.02.1
Combined sea period (s)2.73.03.03.03.13.13.13.13.13.02.93.03.23.33.64.04.34.85.25.76.06.36.76.9
Combined sea directionWNW 287°WNW 289°WNW 290°WNW 292°WNW 293°WNW 294°WNW 294°WNW 293°WNW 291°WNW 289°WNW 286°WNW 283°WNW 281°WNW 282°WNW 282°WNW 283°WNW 285°WNW 287°WNW 287°WNW 286°WNW 285°WNW 284°WNW 282°W 280°
Godrevy forecast weather (3-hourly)
Godrevy forecast wind (mph)11SE12SE12SE11SE11SE11SE12SE12SE14SE16SE18SE17SE15SE14SSE13SSE12SSE11SSE9S7S6S4SSW3SW2SW2WSW
Observed weather
Observed wind (mph)17ESE17ESE18ESE17ESE17ESE14ESE11ESE17ESE16ESE17E19ESE16ESE17SE15SE17SE13SE12SSE11SSE12SE10SE6SSE4WNW2N5SE
Sevenstones Significant wave height (ft)1.62.02.32.32.63.03.02.62.32.62.62.32.32.32.32.63.03.03.03.02.62.62.62.3
Sevenstones Observed wave period (s)7.48.68.37.47.67.18.27.57.76.36.55.68.07.77.87.57.37.67.78.08.08.08.88.1
Sevenstones Observed wave directionUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailableUnavailable
Perranporth Significant wave height (ft)1.11.41.71.41.31.51.41.61.71.61.51.92.02.22.52.32.02.12.31.92.02.02.22.5
Perranporth Observed wave period (s)11.111.110.510.510.510.010.510.510.59.510.09.58.78.79.19.19.59.59.59.510.09.511.110.0
Perranporth Observed wave directionW 276°W 281°W 266°W 273°W 280°W 262°W 266°W 281°W 274°WNW 285°W 276°W 280°WNW 290°W 274°WNW 284°WNW 287°W 269°W 276°W 278°WNW 302°W 278°W 276°W 281°W 278°

Swipe sideways to see more hours.