Harlyn Bay
United Kingdom · Atlantic Europe
Right now
ClearWind and swell direction
Swell: 0.5m WSW
Wind: 1 km/h S (offshore)
Beach faces: N
Very light wind. Expect glassy, clean conditions.
Swell direction is not well aligned with this beach. Expect reduced wave quality.
Today hour by hour
Updated 12:04Expected crowds
Prediction model v16amDawn patrol territory
7amMidweek quiet
Next 7 days
Forecast via Open-MeteoWhat to pack
- 4/3mm wetsuit recommended for 12°C water.
- Small waves expected. Longboard or fish to make the most of it.
- Strong winds on some days. Check the forecast each morning.
Forecast accuracy at Harlyn Bay
Not enough data yet. Log a session to help build the accuracy score.
Best time to go
quiet before the morning rush, conditions building through the session
quiet before the morning rush, conditions building through the session
quiet evening session
Nearby spots right now
Crowd report
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Session journal
Record your session, conditions and gear.
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Create free accountTide
Approximate modelSwell forecast
7-day forecastWater quality
5 nearby outfallsUpdated 12:04
Daily score breakdown
This week is looking below average for late April.
Comparing the 7-day forecast to the last 5 years of marine data for the same week at Harlyn Bay.
What's driving it
Recent form
Last 3 days of logged conditions.
About Harlyn Bay
North-facing bay working best on southerly winds when most of Cornwall is blown out.
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Create Profile →Frequently asked questions
How often is this page updated?
Current conditions refresh every 6 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.
What is the luck factor?
We compare the 7-day forecast to the last 5 years of marine data for the same week at Harlyn Bay. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical late April.
How is 'best session' picked?
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Where does the data come from?
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Does the score capture local knowledge?
Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.
When is the best time to surf Harlyn Bay?
Check our timing score heatmap above for a week-by-week breakdown combining surf conditions with crowd pressure.