Portreath Beach Surf Break

Lat Long: 50.26° N 5.30° W

Portreath Beach Surf Forecast and Surf Report

Issued: 12 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Portreath Beach sea temperature is
17.9°C
1.2° 

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


Portreath Beach surf forecast from 31 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 1AM (local time) - 3.5ft (1.0m), 8s period, W swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 4AM (local time) - 10ft (3.0m), 10s period, WSW swell with 1,666 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 1AM (local time) - 3.5ft (1.0m), 8s period with W swell.

Best Forecast Surf Conditions for Portreath Beach this week:

The surf forecast for Portreath Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 1AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.1m and 16s. Another secondary swell of 0.1m and 11s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Portreath Beach in the next 16 days are 3.0m 10s and forecast to arrive on Monday (Aug 31) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Monday (Sep 07) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Wed 2nd Sep)3.5ft (1.0m) 8s
Best Surf 1AM (Wed 2nd Sep)3.5ft (1.0m) 8s
Most Powerful 4AM (Mon 31st Aug)10ft (3.0m) 10s

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


The Lowdown

Right, let’s have a look at what’s on the cards for the next couple of weeks. Honestly, the outlook for Portreath Beach is a tough one. We’ve got a stretch of poor conditions kicking things off through the first week, with strong winds and messy onshore slop making it hard to get excited. The water temp is sitting about average for the time of year, so no surprises there.

We start on Monday 31st August with a lumpy 10ft W swell, blown out by a fresh NW wind. The combined swell energy is strong at 1553, but that’s all power and no polish. Tuesday 1st September isn’t much better, with a drop to 4ft W swell and light cross-shore breeze, but the wave comment says it all – poor. That theme holds right through to the weekend of 5th and 6th September. Saturday 5th does see a clean window with a light NNW onshore wind and a 6ft WNW swell, with a solid period of 12 seconds. The energy is decent at 767, but the surf is only marginal, and that swell direction is a touch onshore for this beach.

The first real standout doesn’t come until Monday 7th September. We’ve got a long-period groundswell rolling in from the west at 14 seconds, pushing 3ft of swell. It’s a light cross-shore breeze, so it will be clean. The combined energy is 356, moderate, but that swell period at 14 seconds means real shape and power. Portreath is a fairly exposed beach, and a long-period W swell like this can produce some nice lines, though it might break a bit straight at times. It’s worth a look if you’re an intermediate, and crowds are often a thing here, so expect company.

Then, Tuesday 8th September might be the best of the lot. The swell jumps to 7ft from the west, with a 9-second period, and a gentle cross-shore breeze keeps it from being completely chopped. The combined energy is 788, which is solid. That’s a good size for an intermediate, not too big, and the wind is light. Again, crowds often, but for a clean 7ft wave, you’ll take it. The score only gives it a 2, but compared to the rest, it’s the peak.

After that, it fades fast. The second week drops off to tiny, clean but tiny surf. There are a couple of days around Tuesday 15th September with a moderate offshore breeze and a 3ft W swell at 12 seconds, but the energy is only 225. It's surfable, but nothing to write home about. The gap from the 10th to the 15th is mostly flat or too weak.

Overall, the best window is Monday 7th and Tuesday 8th. That long-period 14-second swell on Monday is the pick for shape and quality, though Tuesday has more size. Neither is perfect, but in a rough stretch, those are the moments to be in the water.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun night. Warm (max 20°C on Wed morning, min 16°C on Sun night). Winds decreasing (fresh winds from the W on Sun night, light winds from the SW by Mon night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Thu morning, min 15°C on Sat afternoon). Winds decreasing (fresh winds from the SW on Thu night, light winds from the N by Sat afternoon).

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
1
0
0
1
0
0
0
0
0
0
0
0
0
1
0
1
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
W
10
2.4
W
10
1.6
W
10
1.1
W
9
1
W
9
1
W
8
1.9
WSW
7
1.8
WSW
8
1.7
WSW
8
1.7
W
8
1.6
W
8
1.8
W
8
1.9
W
9
1.9
WNW
10
2
WNW
8
1.7
WNW
12
1.3
WNW
11
1
W
10
0.7
W
9
0.6
W
9
0.3
W
16
Wave Graph
Metric surfscale
Energy kJ
1553
1115
463
189
146
131
376
437
383
365
349
454
548
710
474
767
415
194
81
57
46
Wind (km/h)
30
NW
25
WNW
10
SW
10
SW
20
WSW
15
SSW
30
SW
30
WSW
25
SW
20
SW
30
SW
35
WSW
25
WNW
30
WNW
15
NW
10
NNW
15
NW
5
E
20
SSE
15
SSE
10
SSE
Wind State
on
on
cross
cross
cross-on
cross-off
cross
cross-on
cross
cross
cross
cross
cross-on
on
on
on
on
glassy
off
cross-off
cross-off
High Tide
7:44AM6.37m
8:01PM6.51m
8:19AM6.28m
8:38PM6.31m
8:58AM6.06m
9:19PM5.97m
9:41AM5.71m
10:06PM5.53m
10:33AM5.29m
11:07PM5.05m
11:43AM4.91m
00:30AM4.71m
1:16PM4.78m
2:07AM4.73m
Low Tide
1:59PM0.27m
2:20AM0.30m
2:34PM0.42m
2:55AM0.54m
3:12PM0.69m
3:35AM0.89m
3:57PM1.06m
4:24AM1.31m
4:55PM1.48m
5:30AM1.73m
6:18PM1.81m
7:05AM1.94m
8:02PM1.80m
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:35
6:37
6:39
6:39
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:06
8:04
8:01
8:00
7:58
7:55
 mm
Temp °C
16
16
16
19
19
17
20
19
19
21
20
19
18
17
16
17
16
14
19
19
17
Feels °C
11
11
14
16
16
16
16
15
18
18
17
15
15
12
12
15
14
13
15
16
16
  • Map Icons:
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  • 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 Portreath Beach Surf forecast

The above surf forecast table for Portreath Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Portreath Beach can be found by selecting the local surf guide option on the grey menu. Our Portreath Beach 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 (Portreath Beach) 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 Portreath Beach 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.

Portreath Beach is 5 km (3 miles) from Camborne. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Camborne. Camborne has rooms for a wide range of budgets as well as car hire and transport links.

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