Surf Forecasts:
Harlyn surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 11s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 1PM (local time) - 4ft (1.2m), 10s period, W swell with 288 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 11s 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 Wednesday (Aug 12) at 4AM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.1m and 6s. 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 1.2m 10s and forecast to arrive on Thursday (Aug 13) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Aug 11) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 11s |
| Best Surf | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 11s |
| Most Powerful | 1PM (Thu 13th Aug) | 4ft (1.2m) 10s |
Table - best surf conditions forecast for Harlyn over the next 16 days.
The Lowdown
Right, let’s have a look at what’s on offer for the next couple of weeks.
To be honest, it’s a pretty flat and frustrating start around here. We’ve got a long stretch of nothing much to get excited about. From now, through the middle of August, Harlyn is seeing barely a ripple. The swell is tiny and the wind is mostly onshore or cross-onshore, so the surf is just poor. This quiet spell runs for about a week and a half, with nothing worth paddling out for.
Then, finally, a bit of life shows up. Friday the 21st of August morning is where it flips. We’re looking at a clean, glassy start with a 6ft swell from the WNW and a period of 7 seconds. The combined energy hits 411 (moderate wave energy), and with the wind glassy and then cross-off, this is the standout of the whole outlook. The swell direction matches the optimum, and the offshore wind means clean faces. It’s a beginner-friendly setup, but given it’s often crowded here, expect company. Harlyn is sheltered, so it won’t cop the full brunt, but this is the best we’ll see.
The afternoon of the 21st keeps the clean conditions, with the swell building to 7ft from the west, energy jumping to 598 (strong wave energy). The wind is a light cross-off, so it’ll be clean and punchy. This is getting into expert territory for size, but for those with the skills, it’ll be worth it.
Saturday the 22nd of August sees the swell hanging around at 7ft in the morning, but the wind turns a bit cross-off and the energy stays solid at 478. Still clean, but the morning might have a more marginal feel. By the afternoon, the wind picks up to 15 mph, and the quality drops.
After that, it fades back into small, choppy junk from the 23rd onward. A couple of days of cross-off wind later in the week, but the swell is tiny again. No real highlights after that Saturday.
So, if you’re keen, mark your calendar for Friday the 21st of August. That’s your window. The water temperature anomaly isn’t mentioned here, so it’s about average for the time of year.
Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 17°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Thu night, min 16°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 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) | WNW 8 | W 13 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | N 4 | N 4 | WNW 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 20 | 13 | 59 | 125 | 139 | 175 | 267 | 237 | 181 | 126 | 215 | 135 | 127 | 93 | 40 | 27 | 16 | 10 | 20 | 28 | 48 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | on | cross-on | on | on | cross | cross | cross | cross-on | cross-on | on | cross-on | on | on | on | on | cross-on | on | cross |
High Tide | 4:42AM5.86m | 5:08PM6.29m | 5:35AM6.28m | 5:57PM6.74m | 6:22AM6.61m | 6:42PM7.05m | 7:04AM6.79m | 7:23PM7.16m | 7:44AM6.81m | 8:03PM7.06m | 8:23AM6.66m | 8:41PM6.78m | 9:00AM6.37m | 9:19PM6.35m | |||||||
Low Tide | 11:05AM0.91m | 11:36PM0.55m | 11:55AM0.48m | 00:24AM0.17m | 12:40PM0.17m | 1:07AM-0.04m | 1:21PM0.03m | 1:46AM-0.07m | 2:00PM0.06m | 2:24AM0.09m | 2:37PM0.26m | 3:00AM0.40m | 3:13PM0.60m | 3:35AM0.82m | |||||||
 | |  | | | | |  | | | |  | | | |  | | | | | | |
 | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — |
 | — | 8:47 | — | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 25 | 24 | 20 | 20 | 20 | 19 | 18 | 17 | 18 | 17 | 17 | 17 | 16 | 17 | 16 | 19 | 20 | 19 |
Feels °C | 20 | 20 | 20 | 23 | 22 | 19 | 20 | 20 | 19 | 18 | 14 | 15 | 14 | 13 | 13 | 12 | 12 | 10 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | — | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | N 4 | W 8 |
| kJ | 20 | 11 | 59 | 125 | 139 | 175 | 267 | 237 | 181 | 126 | — | 135 | 127 | 93 | 40 | 27 | 16 | 8 | 8 | 9 | 48 |
Swell 2 Height (m) Direction Period (s) | N 4 | W 9 | W 7 | SW 6 | — | — | — | — | — | — | — | N 4 | — | — | — | WSW 8 | WNW 5 | W 4 | W 10 | WNW 9 | N 4 |
| kJ | 1 | 7 | 9 | 1 | — | — | — | — | — | — | — | 5 | — | — | — | 6 | 5 | 2 | 2 | 28 | 1 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 13 | SW 12 | — | — | — | — | — | — | — | — | W 13 | — | — | — | — | W 18 | W 18 | W 18 | W 7 | W 16 |
| kJ | 8 | 13 | 6 | — | — | — | — | — | — | — | — | 3 | — | — | — | — | 7 | 6 | 6 | 4 | 5 |
Wind waves Height (m) Direction Period (s) | — | SSE 2 | S 6 | — | — | — | — | — | — | WNW 6 | W 9 | NNW 4 | N 5 | N 5 | N 4 | N 4 | N 3 | N 4 | N 4 | — | — |
| kJ | — | 1 | 1 | — | — | — | — | — | — | 53 | 215 | 2 | 22 | 15 | 13 | 2 | 2 | 10 | 20 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 387 | 245 | 2 | 2 | 9 | 2 | 44 | 227 | 1 | 1 | 57 | 57 | 69 | 57 | 283 | 390 | 287 | 386 | 349 | 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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