Surf Forecasts:
Harlyn surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 7PM (local time) - 4ft (1.2m), 9s period, W swell with glassy winds.
- Most powerful swell: Friday 18 Sep, 10AM (local time) - 6.5ft (2.0m), 13s period, WNW swell with 1,259 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 7PM (local time) - 4ft (1.2m), 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 Sunday (Sep 20) at 7PM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.1m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Harlyn in the next 16 days are 2.0m 13s and forecast to arrive on Friday (Sep 18) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 20th Sep) | 4ft (1.2m) 9s |
| Best Surf | 7PM (Sun 20th Sep) | 4ft (1.2m) 9s |
| Most Powerful | 10AM (Fri 18th Sep) | 6.5ft (2.0m) 13s |
Table - best surf conditions forecast for Harlyn over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's be straight about Harlyn for the next two weeks. It's a tough outlook, no two ways about it. The first week and a half is pretty much a total bust for a decent surf. The swell's popping, but the wind has got it all wrecked.
We start on Tuesday, September 15th, with a 6ft swell from the west, but a strong 35 km/h cross-onshore wind has turned it into a mess. The wave energy is moderate (397), but you'd be fighting a losing battle. That pattern holds all the way through to Monday, September 21st. The swell bounces between 4ft and 7ft, and energy gets into a strong range on Friday the 18th with a 7ft swell at 13 seconds giving us 1268, but the wind is always wrong. It's either cross, cross-on, or cross-off, always enough to keep things lumpy and poor. That's a solid week of nothing worth paddling for.
The only bright spot in the whole forecast comes right at the end. On Tuesday, September 22nd, the afternoon finally delivers. We get a 4ft west swell with a 10-second period and glassy conditions. That's the one to circle on your calendar. The combined energy is moderate (444), but the surface will be clean as a mirror. Wednesday, the 23rd, also looks tidy with glassy 4ft surf and a 12-second period in the morning, but Tuesday afternoon is your best bet.
Now, if you look way out to Saturday, September 26th, there's a big one showing: a 8ft west swell with a 16-second period, giving us a very strong 2827 of energy. But the wind is a cross-off at 25 km/h, and the guidance calls it "marginal." For a beach break like Harlyn, a 16-second groundswell can be a bit straight and dumpy, and nearly 8ft puts it firmly in the expert-only zone. It looks like a better day for the kite surfers than us with paddles. It's just too far out to get excited about.
So, for a clean surf, don't bother until the afternoon of Tuesday, the 22nd. That's your one true standout. The water's running at 64°F, which is a touch warmer than usual for September, so you won't need your thickest rubber for that one session.
Bide your time, keep an eye on the charts, and I'll see you out there if it comes together.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 16°C on Tue morning, min 14°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri afternoon. Very mild (max 17°C on Fri afternoon, min 15°C on Fri afternoon). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Sun night). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
AM | 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 8 | W 8 | W 9 | W 10 | W 11 | W 10 | W 8 | W 8 | WNW 8 | WNW 13 | W 12 | W 7 | W 8 | W 7 | W 10 | W 10 | W 9 | W 10 | W 10 | W 10 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 397 | 428 | 617 | 899 | 669 | 208 | 566 | 603 | 533 | 1259 | 942 | 287 | 294 | 235 | 426 | 363 | 295 | 183 | 120 | 125 | 125 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross | cross-off | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | glassy | on | on | cross-on |
High Tide | 8:42PM6.27m | 8:58AM6.05m | 9:17PM5.78m | 9:34AM5.58m | 9:55PM5.25m | 10:14AM5.09m | 10:40PM4.74m | 11:08AM4.62m | 11:49PM4.32m | 12:36PM4.34m | 1:35AM4.21m | 2:22PM4.45m | 3:04AM4.49m | ||||||||
Low Tide | 2:36PM0.59m | 2:53AM0.85m | 3:09PM1.01m | 3:25AM1.31m | 3:45PM1.49m | 4:01AM1.79m | 4:28PM1.97m | 4:50AM2.25m | 5:33PM2.40m | 6:12AM2.59m | 7:19PM2.58m | 8:04AM2.57m | 8:56PM2.35m | ||||||||
 | |  |  |  |  | | |  | |  |  | | | | | | | | | | |
 | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — |
 | — | 7:35 | — | — | 7:32 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:23 | — | — | 7:21 | — |
mm | — | — | — | — | — | 3 | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 18 |
Feels °C | 10 | 10 | 12 | 9 | 11 | 11 | 10 | 8 | 11 | 11 | 12 | 13 | 13 | 15 | 14 | 15 | 17 | 19 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | — | — | W 9 | W 10 | W 11 | W 10 | — | — | WNW 10 | W 12 | W 12 | WNW 12 | W 8 | WNW 10 | W 10 | W 10 | W 9 | W 10 | W 10 | W 10 | W 10 |
| kJ | — | — | 617 | 899 | 669 | 208 | — | — | 265 | 3 | 942 | 83 | 294 | 123 | 426 | 363 | 295 | 183 | 120 | 125 | 125 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | N 6 | N 5 | — | — | W 13 | W 18 | N 5 | SW 16 | SW 16 | W 16 | SW 14 | SW 14 | SW 14 | WNW 14 | NW 12 | WNW 12 | SW 13 |
| kJ | — | — | — | — | 30 | 5 | — | — | 3 | 6 | 5 | 10 | 10 | 5 | 8 | 8 | 8 | 38 | 40 | 29 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 17 | — | — | — | — | — | — | SW 13 | SW 13 | SW 13 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | 7 | 7 | 7 | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | NNW 6 | — | W 6 | W 8 | W 8 | WNW 8 | WNW 13 | — | W 7 | — | W 7 | — | — | — | — | — | — | — |
| kJ | 397 | 428 | — | 52 | — | 148 | 566 | 603 | 533 | 1259 | — | 287 | — | 235 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 245 | 245 | 51 | 44 | 245 | 227 | 477 | 568 | 127 | 245 | 253 | 391 | 253 | 253 | 119 | 1 | 1 | 1 | 9 | 56 | 2 |
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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