Surf Forecasts:
Harlyn surf forecast from 15 Aug 2026:
- Best quality surf: Friday 21 Aug, 4AM (local time) - 3.5ft (1.0m), 9s period, W swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 10AM (local time) - 5ft (1.6m), 8s period, WNW swell with 341 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 4AM (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 4AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.2m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Harlyn in the next 16 days are 1.6m 8s and forecast to arrive on Thursday (Aug 20) 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+) | 4AM (Fri 21st Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 4AM (Fri 21st Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 10AM (Thu 20th Aug) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Harlyn over the next 16 days.
The Lowdown
Alright, grab your board, let’s talk about Harlyn. To be straight with you, this stretch of coast is looking pretty lackluster for the next couple of weeks. There’s a lot of small, junky swell mixed with onshore winds, and not a lot of good options on the table. It’s one of those times where you might be better off checking the surf cams from the comfort of your sofa rather than paddling out into disappointment.
Things kick off with a poor outlook. Saturday the 15th has a weak 3ft swell but a fresh northerly blowing straight onshore, making it messy. Sunday and Monday stay small and cross-onshore, with waves around 1ft to 3ft, all pretty forgettable. Midweek is more of the same – a bit more size, getting up to 5ft on Wednesday morning, but the wind is all over the place and the period is short, so expect bumpy, unappealing conditions.
The one glimmer, and I mean a faint one, comes early Friday morning, the 21st. The swell drops to 3ft from the west, but the wind goes glassy with a slight air from the NE. It’s the only time in the whole forecast that gets a nod as being surfable. It’s not going to be epic, but if you’re desperate for a paddle, that’s your window. The energy at that time is moderate, around (158), but it's still small and pretty ordinary.
After that, it’s a long, bleak stretch. From later Friday the 21st through the whole second week, the swell flattens out and the winds turn fresh and lumpy. There’s a tiny pulse of long-period swell (14 seconds) around the 23rd and 24th, but it’s only 0.7ft–just not enough to do anything with. The end of the month brings nothing but cross-onshore breezes and weak waves. It’s a dead period, plain and simple.
So, here’s the deal. If you’re a beginner, the water is going to be about average for the time of year, but the waves aren't going to help you. If you’re a kiter, the strong cross-shore and onshore winds later in the period might make things more interesting than for the surfers, but for a paddle surfer, it’s a hard pass. The only real standout, if you can call it that, is that glassy spell on Friday morning the 21st. It’s not much, but it’s all we’ve got.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun night, min 16°C on Sat afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Very mild (max 18°C on Tue afternoon, min 17°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 7 | W 7 | W 7 | WNW 9 | WNW 8 | W 7 | WNW 6 | WNW 6 | W 6 | WNW 6 | WNW 6 | WNW 7 | WNW 8 | WNW 9 | W 9 | W 8 | W 8 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 74 | 54 | 17 | 25 | 8 | 28 | 101 | 79 | 139 | 112 | 143 | 149 | 115 | 285 | 341 | 283 | 160 | 140 | 88 | 35 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | glassy | on | on |
High Tide | 8:03PM7.06m | 8:23AM6.66m | 8:41PM6.78m | 9:00AM6.37m | 9:19PM6.35m | 9:38AM5.98m | 9:57PM5.84m | 10:17AM5.52m | 10:38PM5.30m | 11:01AM5.06m | 11:28PM4.80m | 11:59AM4.65m | 00:39AM4.43m | |||||||
Low Tide | 2:24AM0.09m | 2:37PM0.26m | 3:00AM0.40m | 3:13PM0.60m | 3:35AM0.82m | 3:50PM1.03m | 4:11AM1.29m | 4:29PM1.50m | 4:51AM1.77m | 5:16PM1.96m | 5:43AM2.20m | 6:22PM2.34m | ||||||||
 |  |  | |  | | | | | | | | |  |  | | | | | | |
 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — |
 | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | 1 |
Temp °C | 17 | 17 | 17 | 18 | 19 | 19 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 18 | 17 | 17 | 18 | 18 | 17 |
Feels °C | 12 | 12 | 15 | 16 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 12 | 12 | 15 | 15 | 15 | 18 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 7 | W 7 | W 7 | WNW 5 | WNW 8 | W 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | WSW 15 | WNW 8 | WNW 9 | W 9 | W 8 | W 8 | W 8 |
| kJ | 74 | 54 | 17 | 25 | 8 | 28 | 101 | 5 | 11 | 11 | 12 | 10 | 10 | 23 | 341 | 283 | 160 | 140 | 88 | 35 |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 8 | W 18 | W 18 | WNW 9 | SW 18 | — | — | — | — | — | — | — | SW 14 | WSW 14 | N 4 | SW 13 | SW 13 | W 11 |
| kJ | — | — | 6 | 7 | 6 | 26 | 12 | — | — | — | — | — | — | — | 8 | 20 | 3 | 7 | 7 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 11 | W 6 | — | — | — | — | — | — | — | — | — | — | WSW 14 | SW 16 | SW 16 | SW 16 |
| kJ | — | — | — | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — | 19 | 10 | 10 | 10 |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 4 | N 4 | WNW 4 | — | — | W 7 | WNW 6 | WNW 6 | W 6 | WNW 6 | WNW 6 | WNW 7 | — | — | — | N 4 | NNW 5 | N 4 |
| kJ | 47 | 34 | 9 | 3 | 5 | — | — | 79 | 139 | 112 | 143 | 149 | 115 | 285 | — | — | — | 1 | 58 | 20 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 246 | 244 | 246 | 353 | 237 | 281 | 227 | 305 | 281 | 284 | 133 | 69 | 227 | 287 | 123 | 222 | 1 | 1 | 56 | 42 |
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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