Surf Forecasts:
Harlyn surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 7AM (local time) - 3.5ft (1.0m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 10AM (local time) - 7.5ft (2.3m), 9s period, WNW swell with 791 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 7AM (local time) - 3.5ft (1.0m), 9s period with W swell.
Best Forecast Surf Conditions for Harlyn this week:
The surf forecast for Harlyn over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 7AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.7m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Harlyn in the next 16 days are 2.3m 9s and forecast to arrive on Thursday (Aug 20) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 25) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 21st Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 7AM (Fri 21st Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 10AM (Thu 20th Aug) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Harlyn over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you. The next couple of weeks are looking pretty grim for a proper paddle. We've got a window that's mostly full of onshores, cross-chop, and just plain messy waves. It's one of those stretches where the ocean looks like a washing machine more than a playground.
The first real glimpse of anything decent doesn't show up until Tuesday, the 25th of August. Before that, we're looking at a solid week of poor conditions. Tuesday morning at Harlyn (North Cornwall) will be the first time it cleans up, with a light southerly breeze keeping it offshore and glassy. The swell will be small, around 3ft from the WNW, but at least it'll be clean. The water is sitting at 66°, which is a touch warmer than normal for this time of year, so that's a small silver lining. Tuesday afternoon sees a bump in size to 4ft, still from the WNW, with the same clean, offshore feel. It’s not gonna be epic, but it's the best we've had in over a week.
We get a bit of a tease on the 31st of August, with a clean 5ft from the west in the morning, and a slightly bigger 5ft in the afternoon. But the wind swings cross-offshore for the afternoon session, which will put a bit of a chop on it. Still, it’s surfable.
The standout, and I mean the only real standout in this whole stretch, is the morning of Tuesday, the 1st of September. We're looking at a clean 6ft of west swell, with a moderate offshore breeze from the south. This is the most promising window we've got. It’s a full two weeks out, so don't book the time off work just yet – long-range forecasts can change – but if this holds, it'll be worth the wait. The morning will be the time to go before the wind swings cross-off in the afternoon.
To be honest, with this much wind and the poor quality, a spot like Harlyn is going to look a lot more interesting to the kite surfers than to us paddle surfers for most of this period. There are long gaps of several days where there's just nothing on offer, especially from the 22nd through the 24th. But it can't stay poor forever, and that Tuesday morning session is a glimmer of hope on the horizon.
Stay tuned, keep an eye on the forecasts, and be ready to move when the ocean finally cleans up.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu night. Very mild (max 18°C on Tue afternoon, min 15°C on Thu night). Winds decreasing (fresh winds from the WNW on Wed night, light winds from the E by Thu night). | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Fri afternoon. Very mild (max 17°C on Sat night, min 13°C on Fri afternoon). Mainly fresh winds. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 6 | W 7 | W 9 | W 9 | W 8 | WNW 9 | WNW 9 | W 9 | W 8 | W 8 | N 5 | N 5 | N 5 | N 5 | W 9 | WSW 14 | WSW 14 | W 9 | W 9 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 143 | 157 | 235 | 287 | 430 | 791 | 639 | 282 | 136 | 64 | 51 | 65 | 40 | 23 | 24 | 19 | 20 | 13 | 14 | 12 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-on | cross-on | on | cross | on | on | on | on | on | on | on | on | on | cross-on | cross-on |
High Tide | 9:57PM5.84m | 10:17AM5.52m | 10:38PM5.30m | 11:01AM5.06m | 11:28PM4.80m | 11:59AM4.65m | 00:39AM4.43m | 1:23PM4.42m | 2:13AM4.35m | 2:55PM4.54m | 3:34AM4.59m | 4:02PM4.90m | ||||||||
Low Tide | 4:11AM1.29m | 4:29PM1.50m | 4:51AM1.77m | 5:16PM1.96m | 5:43AM2.20m | 6:22PM2.34m | 7:02AM2.49m | 7:57PM2.48m | 8:40AM2.46m | 9:27PM2.28m | 9:54AM2.15m | 10:26PM1.90m | ||||||||
 |  |  |  | | | | |  |  | | | |  | | | | | | | |
 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — |
 | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — |
mm | — | 3 | 1 | — | 4 | — | — | 4 | 1 | 6 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 18 | 17 | 17 | 17 | 16 | 15 | 14 | 15 | 15 | 16 | 17 | 15 | 16 | 16 | 16 | 17 | 16 |
Feels °C | 14 | 16 | 14 | 12 | 12 | 12 | 13 | 13 | 13 | 9 | 10 | 10 | 12 | 14 | 10 | 12 | 13 | 15 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 17 | W 9 | SW 16 | W 10 | SW 14 | WNW 9 | W 9 | W 8 | W 8 | W 8 | W 9 | WNW 6 | W 9 | W 9 | WNW 6 | W 8 | W 9 | W 9 | W 8 |
| kJ | 11 | 12 | 235 | 10 | 45 | 8 | 639 | 282 | 136 | 64 | 33 | 39 | 12 | 14 | 24 | 12 | 12 | 13 | 14 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 16 | — | WSW 15 | — | WSW 14 | WSW 14 | SW 13 | SW 13 | SW 16 | SW 15 | W 9 | WNW 5 | WSW 14 | W 9 | WNW 4 | N 4 | WNW 4 | SW 13 |
| kJ | — | — | 10 | — | 23 | — | 21 | 18 | 7 | 7 | 10 | 9 | 24 | 6 | 19 | 13 | 2 | 2 | 2 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 16 | SW 16 | SW 13 | SW 12 | WSW 15 | WSW 15 | — | WSW 14 | WSW 14 | SW 14 | SW 13 | — |
| kJ | — | — | — | — | — | — | — | — | 10 | 10 | 7 | 6 | 21 | 21 | — | 19 | 20 | 7 | 7 | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 7 | — | W 9 | W 8 | WNW 9 | — | N 5 | N 5 | N 5 | N 5 | N 5 | N 5 | N 5 | N 4 | N 4 | N 5 | — | — | — |
| kJ | 143 | 157 | — | 287 | 430 | 791 | — | 21 | 42 | 55 | 51 | 65 | 40 | 23 | 19 | 8 | 4 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 227 | 123 | 69 | 227 | 276 | 123 | 74 | 7 | 2 | 56 | 281 | 262 | 230 | 48 | 56 | 390 | 237 | 399 | 391 | 56 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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Information about the Harlyn Surf forecast
The above surf forecast table for Harlyn provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Harlyn can be found by selecting the local surf guide option on the grey menu. Our Harlyn surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Harlyn) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Harlyn may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Harlyn is 6 km (4 miles) from Padstow. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Padstow. Padstow has rooms for a wide range of budgets as well as car hire and transport links.
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