Portreath Beach Surf Break

Lat Long: 50.26° N 5.30° W

Portreath Beach Surf Forecast and Surf Report

Issued: 6 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Portreath Beach sea temperature is
17.7°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 4 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 7PM (local time) - 4ft (1.2m), 11s period, W swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 7AM (local time) - 8ft (2.4m), 14s period, W swell with 2,120 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 7PM (local time) - 4ft (1.2m), 11s 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 Saturday (Sep 05) at 7PM. The primary swell is predicted to be 1.2m and 11s period. 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 2.4m 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Sep 06) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 5th Sep)4ft (1.2m) 11s
Best Surf 7PM (Sat 5th Sep)4ft (1.2m) 11s
Most Powerful 7AM (Mon 7th Sep)8ft (2.4m) 14s

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


The Lowdown

Right, let’s talk about what’s going on for the next few weeks. The honest truth here is, if you’re looking for a good session, you’re going to be waiting a while. The forecast is a bit of a heartbreaker for the most part.

We start on Friday, the 4th of September. There’s some size in the water with a 7 ft west swell, but the wind is howling out of the WNW at 16 mph, straight onshore. It’s a messy, lumpy, cross-onshore chop, and the combined swell energy is a moderate 660. The water is sitting at 64°, which is a touch warmer than normal for this time of year, so at least you won’t freeze while you’re getting battered. It’s a write-off.

Saturday, the 5th, drops a little to 5 ft, but the wind is still cross-onshore and the morning is a marginal call. The light breeze helps, but it’s nothing to get excited about. The swell energy drops to 730 in the morning, then falls off to 415 in the afternoon. Still not clean enough to really enjoy.

Sunday, the 6th, the swell drops right out to 2 ft. The wind does go offshore in the morning, which is nice, but there’s only 81 units of energy – basically a flat spell. Not worth paddling out for.

Monday, the 7th, is actually the biggest day of the whole period with a 8 ft west swell, giving a strong 1942 combined energy. But the wind is a dirty cross-onshore at 12-16 mph, and the wave state is choppy and messy. It’s a tragic waste of a solid groundswell. That kind of size with that wind is just a washing machine.

Tuesday, the 8th, stays around 6 ft, energy is still decent at 983, but the wind is still cross-onshore and begins to get fresh and lumpy. It’s a kite surfer’s dream, not a paddler’s.

From the 24th through to the 19th of September, it’s a long, drawn-out stretch of poor conditions. The wind keeps swinging around, mostly onshore or cross-onshore, and the swell drops to under 3 ft for most of the second week. There’s a brief moment on the 13th with some 3 ft swell and a clean cross-offshore or offshore wind, but the energy is low (132 and 91) and it’s just “surfable but very ordinary” – that’s the hope for a long-range session.

The only real standout, if you’re desperate and patient, is the very end of the forecast. On Friday, the 18th of September, the morning is glassy with zero wind from the ESE, and a 2 ft west swell. It’s tiny, but there’s a solid 9-second period and the water is flat. The combined energy is only 70, so it’s weak, but it’s the cleanest you’ll see. Portreath Beach (Cornwall) isn’t a spot that handles big swell well, so on a day like this with glassy conditions and a small, clean offering, it’s the best of a bad bunch. The crowds are often there, but on a tiny day like this, it might be a tame, friendly little paddle.

The first week is a write-off, and the second week is mostly a low-energy, onshore mess. The glassy, clean morning on the 18th is the only true highlight in a 16-day window that’s otherwise a battle. Forecasts can always change, though – don’t bin the boards just yet.

Rusty

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun morning, min 15°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Mon night. Very mild (max 18°C on Mon afternoon, min 14°C on Wed night). Mainly fresh winds.

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
2
1
1
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)
2
W
9
2
WNW
10
1.6
WNW
12
1.3
WNW
11
1
W
10
0.7
W
9
0.7
W
9
0.8
W
16
2.4
W
13
2.3
W
12
2.4
W
11
1.9
W
10
1.9
W
10
2.3
WNW
8
2
WNW
8
1.5
W
7
1.2
W
7
1.6
W
6
2.1
WSW
7
2.2
W
9
Wave Graph
Metric surfscale
Energy kJ
627
727
730
415
190
81
73
330
1942
1530
1271
687
687
592
450
233
139
200
468
715
Wind (km/h)
25
WNW
20
WNW
10
WNW
15
SW
15
SE
25
SSE
20
SSW
15
WSW
20
W
25
WSW
15
W
25
W
30
W
25
WNW
25
WNW
25
W
10
SW
20
SSW
20
WSW
20
W
Wind State
cross-on
on
cross-on
cross
off
off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross
cross-off
cross-on
cross-on
High Tide
11:07PM5.05m
11:43AM4.91m
00:30AM4.71m
1:16PM4.78m
2:07AM4.73m
2:47PM5.05m
3:27AM5.10m
3:55PM5.55m
4:25AM5.59m
4:47PM6.06m
5:12AM6.03m
5:31PM6.48m
Low Tide
4:55PM1.48m
5:30AM1.73m
6:18PM1.81m
7:05AM1.94m
8:02PM1.80m
8:43AM1.76m
9:28PM1.42m
9:55AM1.32m
10:29PM0.91m
10:49AM0.82m
11:18PM0.45m
11:34AM0.41m
11:59PM0.11m
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
rain showers
clear
rain showers
rain showers
rain showers
cloud
light rain
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:41
6:43
6:45
6:46
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:00
7:58
7:55
7:52
7:51
7:49
7:46
 mm
2
1
2
1
2
Temp °C
17
16
17
18
16
23
20
18
18
18
17
17
17
15
17
17
15
18
18
19
Feels °C
13
13
15
15
14
18
17
17
13
14
13
11
11
10
12
12
12
16
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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