Portreath Beach Surf Break

Lat Long: 50.26° N 5.30° W

Portreath Beach Surf Forecast and Surf Report

Issued: 12 pm 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Portreath Beach sea temperature is
18.7° C
1.6° 

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 13 Aug 2026:

  • Most powerful swell: Thursday 20 Aug, 1AM (local time) - 6ft (1.9m), 10s period, WNW swell with 644 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 1.9m 10s and forecast to arrive on Thursday (Aug 20) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Thursday (Aug 13) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Thu 20th Aug)6ft (1.9m) 10s

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


The Lowdown

Alright folks, it’s Rusty here. Let’s be straight with you—this coming stretch is looking pretty grim for a proper paddle. We’ve got a long, flat, and choppy run ahead before anything worth getting excited about shows its face. For the next week and a half, it’s mostly small, weak, and messy. You’ll see a lot of cross-onshore wind and poor surf conditions. The energy's low, with combined swell energy mostly under 200, often way under. This is one of those times where you might be better off doing maintenance on your board.

We start off this Thursday morning at Portreath Beach with a 4ft west swell, but that's about it. The period is 11 seconds, but the wind is a cross-on from the NNW at 9 mph, making things fairly chopped. The combined energy is 319, but it’s all for nothing, according to the charts. That water temp is 66°, which is a touch warmer than normal for this time of year, so you won't need the thickest suit, just a whole lot of patience. Thursday afternoon doesn't get any better. Friday brings a drop in size to under 3ft, and the period drops too. Saturday is bigger wind but still small and messy. All through the weekend and into the early part of next week, it's more of the same. We’re looking at a real struggle for anything rideable. The swell energy stays weak, and the winds keep chopping it up.

Things get a little more interesting on the 18th when a 5ft west swell arrives, but the period is a short 6 seconds, and it's cross-onshore. It’s just lumpy. We're looking at a few days like that. The 23rd, which is a Sunday, is the first time we see something with some intent. There’s a 8ft west swell with an 8-second period, and the wind is cross-off from the south at 9 mph. The combined energy jumps up to 787, and the conditions are called "clean." This is the standout of the whole window. It’s not huge, but it’s the most power we’ve seen, and with that cross-off wind, Portreath should actually have some shape. It’s been so bad for so long that this is the one to circle. The second half of the period, from around the 22nd, sees a marked increase in potency, and the weekend of the 23rd is clearly the best on offer.

Beyond that, there's a bit of a drop-off again. The 24th has a smaller 4ft swell but the period is a weak 6 seconds, and it’s a bit all over the place. Later in the week, on the 25th, we get another small pulse, but the period is even shorter. The real story of the second week is the north/northeast winds that start to blow harder. By the 27th and 28th, we’re looking at 5ft to 5ft west swells, but winds are going to be fresh, 19-22 mph from the NNE, making it lumpy and cross-onshore. The energy is moderate, but it's blown out. That’s a mess, not a surf.

So, if you’re keen, the main event is the 23rd. 8ft of west swell, clean conditions with that southerly cross-off. It’s the clear standout in a bleak period. Everything else is either too small, too messy, or too short-period to be worth your time. It's a long wait, but it might just be worth it.

Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Thu morning, min 15°C on Sat afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Mon morning, min 16°C on Sun night). Winds increasing (light winds from the WNW on Sun night, fresh winds from the W by Tue morning).

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
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)
1.2
W
11
1.2
W
10
1
W
10
0.9
W
9
1
W
9
1.2
W
8
1
W
8
0.9
W
8
0.7
W
8
0.4
WNW
7
0.5
W
7
0.3
W
7
0.5
W
8
1
WNW
7
0.9
W
7
1.3
W
6
1.4
W
7
1.6
WNW
7
1.9
WNW
7
1.6
WNW
8
1.9
WNW
10
Wave Graph
Metric surfscale
Energy kJ
319
284
181
129
152
195
114
95
55
16
25
12
36
114
77
130
171
247
355
300
644
Wind (km/h)
15
NNW
15
NW
10
NW
10
WNW
20
WNW
20
N
30
N
30
N
20
N
15
N
15
NNW
10
NW
15
WNW
25
NNW
15
WNW
30
W
30
W
25
WNW
20
WNW
25
WNW
25
WNW
Wind State
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
High Tide
6:31PM6.76m
6:54AM6.50m
7:13PM6.86m
7:34AM6.51m
7:53PM6.76m
8:13AM6.37m
8:31PM6.49m
8:51AM6.09m
9:09PM6.08m
9:28AM5.72m
9:48PM5.59m
10:08AM5.28m
10:29PM5.07m
Low Tide
12:34PM0.15m
1:00AM-0.06m
1:15PM0.01m
1:40AM-0.08m
1:54PM0.05m
2:18AM0.07m
2:31PM0.25m
2:54AM0.38m
3:07PM0.57m
3:29AM0.78m
3:44PM0.99m
4:05AM1.23m
4:23PM1.44m
clear
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:09
6:09
6:11
6:13
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:45
8:43
8:40
8:38
8:37
8:35
8:32
 mm
Temp °C
22
22
20
21
20
18
18
16
16
18
17
17
20
18
18
20
19
18
18
18
17
Feels °C
21
22
21
20
19
16
14
11
13
16
14
17
17
15
16
17
15
15
15
13
12
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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