Surf Forecasts:
Harlyn surf forecast from 11 Sep 2026:
- Best quality surf: Friday 11 Sep, 10PM (local time) - 3.5ft (1.1m), 8s period, W swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 7AM (local time) - 6.5ft (2.0m), 10s period, W swell with 715 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 10PM (local time) - 3.5ft (1.1m), 8s 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 (Sep 11) at 10PM. The primary swell is predicted to be 1.1m and 8s period. 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 10s and forecast to arrive on Wednesday (Sep 16) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Sep 15) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 11th Sep) | 3.5ft (1.1m) 8s |
| Best Surf | 10PM (Fri 11th Sep) | 3.5ft (1.1m) 8s |
| Most Powerful | 7AM (Wed 16th Sep) | 6.5ft (2.0m) 10s |
Table - best surf conditions forecast for Harlyn over the next 16 days.
The Lowdown
Alright, let’s talk about what’s cookin’ at Harlyn. Gotta be honest, it’s a rough start. There’s a big dry spell with no surf worth mentioning for a week. The first real chance to get wet is on Friday, September 18th.
That Friday morning, Harlyn sees a 4ft swell from the WNW, with a long 12-second period – that’s proper groundswell, so the wave shape will be good, with long lulls between sets. Wind is light and cross-offshore, making it clean. The combined energy is 448 (moderate). Crowds are common here, so don’t expect a secret session. Water temp is right around average for now.
Saturday, September 19th is the first real winner. Swell bumps up to 7ft from the W, a shorter 8-second period but the wind goes glassy or very light in the afternoon. Morning is clean, afternoon is dead calm – glassy conditions, smooth as butter. Combined energy sits at 568 (moderate). That 7ft is fun but not too wild, good for intermediate folks and solid beginners.
After that, Sunday the 20th has size but gets chopped up by onshore winds later.
Now, the big one: Friday, September 25th. That morning delivers a 10ft swell from the W, period of 9 seconds, combined energy of 1285 (strong), and glassy conditions. That’s a serious, powerful swell. Only experts should be out there – 10ft is no joke. The wind is almost nothing, so those waves will be clean and mean. Crowds are likely.
Saturday the 26th holds similar size but the wind goes onshore and messes it up a bit.
Bottom line: a long quiet stretch until the 18th, then a couple of gems on the 19th and 25th. The 25th is the one for the big dogs. Get it while it’s glassy.
– Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Sat night. Very mild (max 19°C on Thu night, min 15°C on Fri afternoon). Winds increasing (calm on Fri night, fresh winds from the WSW by Sat night). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 14°C on Wed morning). Winds increasing (light winds from the WSW on Sun night, fresh winds from the NW by Tue night). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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 9 | W 9 | W 8 | W 8 | W 8 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 10 | WNW 7 | WNW 8 | W 10 | W 10 | W 10 | W 10 | W 10 | WNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 373 | 257 | 160 | 201 | 282 | 600 | 494 | 318 | 205 | 157 | 153 | 109 | 426 | 604 | 563 | 711 | 541 | 290 | 92 | 71 | 318 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross |
High Tide | 6:03AM6.65m | 6:21PM7.03m | 6:41AM6.84m | 6:58PM7.10m | 7:17AM6.86m | 7:34PM6.98m | 7:51AM6.72m | 8:08PM6.69m | 8:25AM6.44m | 8:42PM6.27m | 8:58AM6.05m | 9:17PM5.78m | 9:34AM5.58m | 9:55PM5.25m | |||||||
Low Tide | 12:20PM0.15m | 00:43AM-0.04m | 12:56PM0.02m | 1:18AM-0.03m | 1:31PM0.06m | 1:50AM0.14m | 2:04PM0.26m | 2:22AM0.44m | 2:36PM0.59m | 2:53AM0.85m | 3:09PM1.01m | 3:25AM1.31m | 3:45PM1.49m | ||||||||
 | |  |  | |  |  | |  | | | | | | | | | | | | | |
 | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — | — | 7:35 | — | — | 7:32 | — | — | 7:30 | — |
mm | — | — | — | — | — | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 15 | 18 | 18 | 18 | 18 | 18 | 18 | 20 | 21 | 18 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 17 |
Feels °C | 16 | 15 | 15 | 13 | 13 | 15 | 17 | 17 | 18 | 19 | 21 | 16 | 13 | 10 | 11 | 9 | 9 | 10 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | NW 15 | W 15 | — | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | — | — | — | W 10 | W 10 | W 10 | W 10 | W 10 | WNW 9 |
| kJ | 373 | 257 | 160 | 9 | 4 | — | 494 | 318 | 205 | 157 | 153 | 109 | — | — | — | 711 | 541 | 290 | 92 | 65 | 318 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 13 | SW 13 | — | SW 12 | SW 12 | WNW 12 | — | — | — | — | — | N 6 | N 5 | N 5 | WNW 13 |
| kJ | — | — | — | — | — | — | 7 | 7 | — | 6 | 6 | 14 | — | — | — | — | — | 26 | 5 | 2 | 69 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 15 | — | — | — | — | — | — | — | SW 12 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 4 | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | W 8 | W 8 | W 10 | — | — | — | — | — | SSE 3 | W 10 | WNW 7 | WNW 8 | NNW 6 | NNW 6 | — | W 6 | W 6 | — |
| kJ | — | — | — | 201 | 282 | 600 | — | — | — | — | — | 2 | 426 | 604 | 563 | 108 | 56 | — | 62 | 71 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 44 | 1 | 1 | 216 | 245 | 15 | 119 | 1 | 1 | 1 | 3 | 773 | 336 | 94 | 777 | 245 | 69 | 283 | 222 | 50 |
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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