Harlyn Surf Break

Lat Long: 50.54° N 5.00° W

Harlyn Surf Forecast and Surf Report

Issued: 12 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Harlyn sea temperature is
19.0° C
2.1° 

Harlyn surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Harlyn surf forecast from 17 Aug 2026:

  • Most powerful swell: Thursday 20 Aug, 1AM (local time) - 7ft (2.1m), 8s period, W swell with 545 kJ wave energy.

Best Forecast Surf Conditions for Harlyn this week:

The most powerful waves expected at Harlyn in the next 16 days are 2.1m 8s and forecast to arrive on Thursday (Aug 20) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Thu 20th Aug)7ft (2.1m) 8s

Table - best surf conditions forecast for Harlyn over the next 16 days.


The Lowdown

Alright, grab your stick and listen up. It’s Rusty here, and I’ve been staring at the charts for Harlyn. Gotta be straight with you – it’s a tough stretch ahead. The water is sitting at a balmy 66°F, which is much warmer than normal for this time of year, but that’s about the only thing that’s firing right now.

We’re looking at a long, dry spell for proper waves. From now through most of the forecast, the conditions are just plain average to poor. The energy in the water is weak to moderate at best, with combined swell energy readings barely getting into triple digits for days – around 106 on Monday morning, and struggling to 133 that afternoon. It’s small, it’s choppy, and the wind is mostly cross or cross-on, which isn’t doing us any favours. This stretch looks pretty grim through the 17th of August until the 25th. There will be a noticeable gap in worthwhile surf from the start right up until later in the month.

Now, the first real glimmer of hope shows up on Wednesday, the 26th of August morning. It’s not a world-beater, but we get a clean window. The wind goes light from the southwest, cross-off, and the swell is 5ft from the west with a 8-second period. The combined energy bumps up to a solid moderate 317. It’ll be surfable and clean, but nothing that’ll send you running for the phone.

The two standouts in this whole 16-day outlook come late in the run. First up, the afternoon of Friday, the 28th of August. We see a solid 7ft of swell from the WSW with a 9-second period, and the wind swings around to a gentle cross-off from the southwest. That’s clean surf, and the combined energy is a beefy 838 – that’s proper moderate to strong power. This is the best combination of size and clean conditions on offer, and it’s a real highlight for the period. Remember though, 7ft is getting into the range that might be too much for beginners.

Then, on Sunday, the 30th of August afternoon, we get another crack. The swell pushes up to 8ft from the west with a 9-second period, and again the wind is light and cross-off from the southwest. The combined energy jumps to a very strong 908. The sets will be powerful. This one is for the experienced crew, as it’s solidly in expert-only territory size-wise.

The whole period is a watch-and-wait game, but those two afternoons on the 28th and 30th are your best bets for a proper, clean paddle at Harlyn.

- Rusty

Short Range Forecast

Light rain (total 4mm), mostly falling on Tue night. Warm (max 20°C on Mon morning, min 17°C on Mon afternoon). Mainly fresh winds.

Days 4-6 Weather Summary

Some drizzle, heaviest during Fri morning. Very mild (max 19°C on Sat afternoon, min 15°C on Thu night). Wind will be generally light.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
WNW
6
1
W
8
1.1
W
6
1.3
WNW
6
1.3
W
6
1.4
WNW
7
1.1
W
6
1.5
W
7
2.1
W
8
1.6
WNW
7
1.7
WNW
9
1.2
W
9
0.9
W
8
0.8
W
8
0.5
W
9
0.5
W
10
0.5
W
9
0.4
W
9
0.8
N
5
0.8
N
5
0.8
N
5
Wave Graph
Metric surfscale
Energy kJ
60
118
72
139
130
175
94
212
545
245
506
246
108
80
37
45
40
25
33
28
33
Wind (km/h)
15
WNW
20
WNW
25
WSW
25
WNW
25
WNW
25
W
25
W
30
W
30
W
25
WNW
25
NW
20
N
15
NNE
25
NNW
15
NNE
15
NE
15
ENE
25
NE
25
NE
35
N
20
NE
Wind State
cross
cross
cross-off
cross
cross
cross
cross
cross
cross
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
High Tide
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
1:23PM4.42m
2:13AM4.35m
2:55PM4.54m
3:34AM4.59m
Low Tide
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
7:02AM2.49m
7:57PM2.48m
8:40AM2.46m
9:27PM2.28m
part cloud
clear
part cloud
part cloud
part cloud
rain showers
clear
part cloud
rain showers
part cloud
clear
part cloud
rain showers
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:11
6:13
6:13
6:16
6:16
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:35
8:32
8:30
8:29
8:27
8:24
 mm
2
2
1
Temp °C
20
18
19
18
18
17
18
18
17
17
17
16
16
16
15
18
19
18
17
18
17
Feels °C
19
17
17
16
14
13
14
13
12
13
13
13
13
12
11
16
17
14
10
12
11
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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