Portreath Beach Surf Break

Lat Long: 50.26° N 5.30° W

Portreath Beach Surf Forecast and Surf Report

Issued: 12 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Portreath Beach sea temperature is
18.0° C
1.0° 

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 19 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 1AM (local time) - 5ft (1.5m), 9s period, W swell with glassy winds.
  • Most powerful swell: Thursday 20 Aug, 1PM (local time) - 7.5ft (2.3m), 9s period, WNW swell with 845 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 1AM (local time) - 5ft (1.5m), 9s 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 (Aug 26) at 1AM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.1m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Portreath Beach in the next 16 days are 2.3m 9s and forecast to arrive on Thursday (Aug 20) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 25) at 10PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Wed 26th Aug)5ft (1.5m) 9s
Best Surf 1AM (Wed 26th Aug)5ft (1.5m) 9s
Most Powerful 1PM (Thu 20th Aug)7.5ft (2.3m) 9s

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


The Lowdown

Alright, let’s get into it. I’m looking at the 16-day window and honestly, it’s a real tough stretch for Portreath Beach. The whole run is basically a write-off for decent surf. There’s a big gap of nothing worthwhile from today all the way through, with every single session coming back as “poor surf conditions.” Nothing scores above a zero. That’s a long blank spell.

The water temperature is sitting at 64°F with an anomaly of 2°F, so it’s a touch warmer than average for this time of year. Nothing wild, but noticeable.

Now, if you’re desperate and just want to get wet, the only time the swell even gets close to interesting is around the 31st of August. Early Monday morning, we’ve got a 10 ft W swell with a 10-second period, and the combined energy is a massive 1539. That’s some serious power. But here’s the catch – the wind is straight onshore from the NW at 19 mph, making it a lumpy mess. It’s also way too big for beginners and only for the experts. Later that afternoon, it drops to 8 ft but still onshore junk. The same goes for the 1st of September with a 8 ft W swell, but again, cross-onshore wind at 19 mph. It’s all chop and no shape.

The setup at Portreath Beach is a beach break, so with that much swell, strong onshore wind, and poor surf quality, this is honestly looking more interesting for kite surfing than paddle surfing. The wind is too messy for clean waves.

Beyond that, the surf stays tiny. From the 24th, we get a few clean mornings with cross-offshore easterly winds, but the swell is only 1.0 ft and weak energy (19). It’s clean but flat. Same story on the 28th and 29th with a bit more size (4 ft to 4 ft) and clean conditions, but the period is short (5 to 7 seconds) and the energy is weak (around 142 to 150). It’s just not worth the effort.

Honestly, this is a lean run. The forecasts can change, but right now, there’s no standout day. If you’ve got to go, wait for the 31st August and be ready for a messy, expert-only session. Otherwise, keep the board in the car.

Rusty

Short Range Forecast

Moderate rain (total 10mm), heaviest on Fri morning. Very mild (max 19°C on Wed morning, min 14°C on Thu night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Mon morning, min 15°C on Sat night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
WNW
9
1.5
W
6
2.1
W
8
2.2
W
9
2.2
WNW
9
1.5
W
10
1.1
W
8
0.9
WNW
8
0.3
SW
16
1.3
N
6
1.1
N
6
0.9
N
5
0.3
SW
14
0.3
SW
14
0.3
SW
14
0.3
W
9
0.3
W
9
0.3
W
8
0.3
WNW
10
0.8
WNW
10
1.5
W
9
Wave Graph
Metric surfscale
Energy kJ
266
176
565
794
773
405
169
119
39
126
75
41
32
32
32
14
14
12
20
141
363
Wind (km/h)
25
WNW
30
W
30
W
30
WNW
25
NW
15
N
20
NNE
25
NNW
15
N
20
NNE
25
NNE
20
NNE
20
NNE
25
NNE
15
NNE
25
E
20
E
15
NNW
5
NW
10
NW
5
ENE
Wind State
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross
cross-off
cross-off
cross-on
on
on
glassy
High Tide
10:08AM5.28m
10:29PM5.07m
10:52AM4.83m
11:20PM4.59m
11:51AM4.44m
00:32AM4.24m
1:16PM4.23m
2:06AM4.17m
2:47PM4.35m
3:25AM4.40m
3:52PM4.70m
4:18AM4.77m
4:39PM5.13m
Low Tide
4:23PM1.44m
4:45AM1.69m
5:10PM1.88m
5:37AM2.10m
6:16PM2.23m
6:55AM2.37m
7:50PM2.36m
8:32AM2.35m
9:20PM2.18m
9:47AM2.05m
10:19PM1.81m
10:37AM1.64m
11:02PM1.39m
clear
clear
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:16
6:18
6:18
6:20
6:22
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:32
8:30
8:29
8:27
8:24
8:22
8:21
 mm
2
2
1
1
4
Temp °C
19
19
17
17
17
15
15
15
15
17
17
17
18
18
17
19
19
18
19
18
17
Feels °C
14
14
13
12
12
13
12
10
12
13
13
14
13
13
15
14
15
16
17
16
17
  • 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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