Portreath Beach Surf Break

Lat Long: 50.26° N 5.30° W

Portreath Beach Surf Forecast and Surf Report

Issued: 12 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Portreath Beach sea temperature is
17.7°C
0.9° 

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 26 Aug 2026:

  • Most powerful swell: Saturday 29 Aug, 10PM (local time) - 11ft (3.5m), 10s period, WSW swell with 2,210 kJ wave energy.

Best Forecast Surf Conditions for Portreath Beach this week:

The most powerful waves expected at Portreath Beach in the next 16 days are 3.5m 10s and forecast to arrive on Saturday (Aug 29) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Thursday (Aug 27) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10PM (Sat 29th Aug)11ft (3.5m) 10s

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


The Lowdown

Right then, let’s have a look at what’s on the cards for Portreath Beach over the next couple of weeks.

Honestly, it’s a bit of a tough stretch. The forecast is full of messy, lumpy, and wind-affected conditions, with very few windows of clean surf. The water temperature is sitting at 64°F with an anomaly of 2°F, so it’s pretty much what you’d expect for this time of year, neither particularly warm nor cold.

The first proper surfable session doesn’t show up until Wednesday morning, 26th August. It’s small, with a weak 2ft swell from the west at 8 seconds, and the combined energy is a humble 55. The wind is SSE offshore, so it’ll be clean and glassy. But, the swell is tiny and the surf quality is described as poor, so it’s more of a longboard or log session for the dedicated.

From there, things get worse. The wind swings cross-shore and onshore, the swell gets bigger but blown out, and the surf quality remains poor. A few days in early September bring a marginal chance on Monday 31st August afternoon, with a 7ft west swell (period 10 seconds) and a combined energy of 771, but the wind is messy cross-shore. It’s a tough call.

The real standout, if you can wait, is Thursday 10th September. The morning brings a moderate 8ft west swell, with a solid 11-second period, pumping in a combined energy of 1553. The wind is from the northeast, cross-offshore, and the message says “clean.” That’s the best window on offer. The swell direction is a bit off the optimum for Portreath (which likes NW), but it’s still the biggest and cleanest looking swell of the period. The afternoon holds a 10ft west swell, but the wind turns cross-shore, so the morning is the pick.

Before that, there’s a long gap of poor or marginal days. The week of 2nd September through to 9th September is mostly a write-off, with onshore winds and lumpy, messy conditions. The Saturday 5th September morning has a clean 6ft west swell (period 11 seconds) and cross-onshore wind, but it’s marginal at best, with a low score.

So, to sum it up: it’s a slow start, a long middle section of poor surf, but the morning of Thursday 10th September looks like the one to aim for, with a decent-sized, clean, long-period swell. Keep an eye on that forecast, as it’s a week and a half out, but it’s the most promising.

Rusty.

Short Range Forecast

Moderate rain (total 11mm), heaviest on Fri night. Warm (max 22°C on Wed afternoon, min 16°C on Thu night). Winds increasing (light winds from the S on Wed night, fresh winds from the SSW by Fri night).

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Sun morning. Very mild (max 19°C on Sat morning, min 16°C on Sat night). Winds decreasing (strong winds from the SSW on Sat morning, light winds from the SW by Mon night).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
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
1
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)
0.6
W
8
0.5
W
8
0.4
W
8
0.4
W
8
0.5
W
10
1.1
SW
6
2
WSW
7
2
W
7
1.6
WSW
6
2.5
SW
8
3
WSW
9
3
WSW
10
2.1
WSW
9
2.5
WSW
8
3.5
W
9
3
W
9
2.2
W
10
1.7
W
9
1.8
W
8
1.7
W
8
1.4
W
8
Wave Graph
Metric surfscale
Energy kJ
49
31
18
20
47
94
350
371
195
736
1496
1772
675
850
2003
1365
858
508
398
382
279
Wind (km/h)
20
SSE
20
SE
25
ESE
15
SSW
20
SW
15
SW
30
WSW
30
W
30
SSW
50
SSW
50
WSW
25
WSW
35
SSW
35
SW
35
W
20
NW
20
W
25
SW
30
WSW
30
WNW
20
WNW
Wind State
off
off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-off
cross-off
cross-on
cross-on
cross-off
cross
cross-on
on
cross-on
cross
cross-on
on
cross-on
High Tide
5:16PM5.57m
5:34AM5.56m
5:50PM5.96m
6:07AM5.90m
6:22PM6.27m
6:39AM6.16m
6:54PM6.48m
7:11AM6.32m
7:27PM6.57m
7:44AM6.37m
8:01PM6.51m
8:19AM6.28m
8:38PM6.31m
Low Tide
11:16AM1.23m
11:39PM0.98m
11:50AM0.85m
00:12AM0.64m
12:23PM0.55m
00:44AM0.38m
12:55PM0.34m
1:15AM0.22m
1:27PM0.24m
1:47AM0.20m
1:59PM0.27m
2:20AM0.30m
2:34PM0.42m
2:55AM0.54m
clear
part cloud
rain showers
part cloud
part cloud
part cloud
cloud
rain showers
rain showers
rain showers
part cloud
part cloud
thunderstorm
thunderstorm
clear
part cloud
part cloud
rain showers
rain showers
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:26
6:28
6:30
6:31
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:16
8:15
8:13
8:10
8:07
8:06
 mm
4
1
6
2
2
2
1
1
Temp °C
21
22
18
20
20
17
18
18
18
19
18
17
19
18
16
17
17
17
18
17
16
Feels °C
18
19
15
17
17
16
13
15
13
12
10
12
14
12
10
13
13
14
14
12
13
  • 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 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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