Surf Forecasts:
Portreath Beach surf forecast from 11 Sep 2026:
- Best quality surf: Saturday 12 Sep, 4AM (local time) - 3.5ft (1.1m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 7AM (local time) - 7ft (2.1m), 10s period, W swell with 830 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 4AM (local time) - 3.5ft (1.1m), 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 Saturday (Sep 12) at 4AM. The primary swell is predicted to be 1.1m and 8s 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 2.1m 10s and forecast to arrive on Wednesday (Sep 16) 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 0.6m 5s period and expected on Tuesday (Sep 15) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 12th Sep) | 3.5ft (1.1m) 8s |
| Best Surf | 4AM (Sat 12th Sep) | 3.5ft (1.1m) 8s |
| Most Powerful | 7AM (Wed 16th Sep) | 7ft (2.1m) 10s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Right folks, Rusty here. I’ve had a look at what’s coming down the line at Portreath Beach, and to be honest, it’s a bit of a mixed bag with a long wait for the good stuff.
For the first week or so, we’re looking at a proper blank run. There’s a lot of onshore and cross-shore wind messing things up, and the wave quality is just poor. From the morning of the 11th right through to the afternoon of the 23rd of September, there’s really nothing worth paddling out for. The swell energy is mostly moderate to strong (into the hundreds and up to 1867 on the 20th), but it’s all blown out or accompanied by dodgy conditions. The wind is either on it, cross-on, or too strong, and the surface is described as choppy, lumpy, or unknown. You’ll see a solid 7.9ft W swell on the 15th, but with a 22 mph onshore wind it’s just a mess. There’s a small window on the morning of the 14th with clean 3.3ft cross-off wind, but it’s a 1 out of 10 for quality – barely worth the wetsuit.
The real standout, and the only one I’d mark on the calendar, is the morning of the 23rd of September. The wind goes completely glassy, dead calm, with a 7.2ft W swell (period 8 seconds). The combined swell energy is 534 (moderate), and the wave comment says “expect good surf conditions”. This is your best bet. The swell is a little solid for beginners at over 5ft, but for an intermediate, with glassy conditions, it’ll be clean. Watch out for the afternoon though, as it goes onshore again.
After that, the morning of the 25th of September looks promising but less certain. We’ve got a 7.2ft W swell with a light cross-off breeze, clean conditions, and a big energy reading of 1125. The wave comment says “expect very good surf conditions”. It’s a bit bigger, so it’s more for the experienced crew. The 26th of September morning has a huge 11.5ft swell, but the guidance says it’s predicted to be too big for this break, so give that a miss unless you’re a masochist.
Overall, it’s a long stretch of nothing, but that glassy morning on the 23rd is your true highlight. Hang tight.
Short Range ForecastLight rain (total 4mm), mostly falling on Sat night. Very mild (max 19°C on Sat afternoon, min 14°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 15°C on Tue night). Winds increasing (light winds from the SSW on Sun night, fresh winds from the WNW by Tue afternoon). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 9 | W 9 | W 8 | W 8 | W 8 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | WNW 10 | WNW 8 | WNW 8 | W 10 | W 10 | WNW 10 | WNW 10 | W 6 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 417 | 292 | 156 | 235 | 323 | 708 | 502 | 369 | 246 | 157 | 153 | 109 | 443 | 654 | 630 | 725 | 620 | 356 | 98 | 83 | 372 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on |
High Tide | 5:53AM6.36m | 6:11PM6.74m | 6:31AM6.55m | 6:48PM6.80m | 7:07AM6.57m | 7:24PM6.68m | 7:41AM6.44m | 7:59PM6.41m | 8:15AM6.17m | 8:33PM6.00m | 8:49AM5.79m | 9:08PM5.53m | 9:25AM5.34m | 9:45PM5.02m | |||||||
Low Tide | 12:14PM0.13m | 00:37AM-0.05m | 12:50PM0.01m | 1:11AM-0.04m | 1:25PM0.06m | 1:44AM0.13m | 1:58PM0.25m | 2:16AM0.43m | 2:30PM0.57m | 2:47AM0.82m | 3:03PM0.97m | 3:19AM1.26m | 3:39PM1.43m | 3:56AM1.72m | |||||||
 | |  |  | |  | | |  | | | | | | | |  | | | | | |
 | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | 7:45 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:30 | — |
mm | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 18 | 19 | 18 | 19 | 19 | 19 | 21 | 21 | 18 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 16 |
Feels °C | 15 | 16 | 14 | 14 | 15 | 16 | 18 | 19 | 20 | 20 | 20 | 17 | 13 | 10 | 12 | 9 | 10 | 11 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | WNW 14 | NW 13 | S 14 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | SSW 5 | SSW 6 | S 5 | W 10 | W 10 | WNW 10 | WNW 10 | W 9 | W 9 |
| kJ | 417 | 292 | 156 | 20 | 40 | 4 | 502 | 369 | 246 | 157 | 153 | 109 | 17 | 12 | 1 | 725 | 620 | 356 | 98 | 64 | 372 |
Swell 2 Height (m) Direction Period (s) | — | S 16 | — | SW 15 | SW 15 | S 14 | SW 13 | SW 13 | S 13 | SW 12 | SW 12 | WNW 12 | SW 11 | S 11 | — | — | S 13 | N 6 | N 6 | N 5 | SW 13 |
| kJ | — | 5 | — | 8 | 8 | 4 | 7 | 7 | 3 | 6 | 6 | 14 | 5 | 2 | — | — | 4 | 26 | 5 | 2 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 15 | — | — | — | — | — | SW 12 | SW 12 | SW 12 | — | — | — | — | — | S 13 | — | — | S 18 |
| kJ | — | — | — | 4 | — | — | — | — | — | 6 | 6 | 6 | — | — | — | — | — | 4 | — | — | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | W 8 | W 8 | W 10 | — | — | — | — | — | S 3 | WNW 10 | WNW 8 | WNW 8 | N 6 | N 6 | — | W 6 | W 6 | — |
| kJ | — | — | — | 235 | 323 | 708 | — | — | — | — | — | 6 | 443 | 654 | 630 | 85 | 69 | — | 72 | 83 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 62 | 19 | 8 | 13 | 193 | 217 | 13 | 152 | 12 | 0 | 12 | 0 | 740 | 316 | 108 | 744 | 217 | 86 | 256 | 209 | 13 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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