
Surf Forecasts:
Portreath Beach surf forecast from 9 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 7PM (local time) - 7ft (2.1m), 6s period, W swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 4AM (local time) - 10ft (3.0m), 9s period, WNW swell with 1,499 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 1AM (local time) - 2.5ft (0.7m), 8s period with WNW 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 Thursday (Sep 10) at 1AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.6m and 8s. 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 3.0m 9s and forecast to arrive on Wednesday (Sep 16) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Tuesday (Sep 15) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 10th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 7PM (Tue 15th Sep) | 7ft (2.1m) 6s |
| Most Powerful | 4AM (Wed 16th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright, grab a cuppa, because the forecast for Portreath Beach is a bit of a mixed bag. We’ve got some promise on the horizon, but you’ll have to be patient.
Overall, the next couple of weeks are looking like a story of waiting for the right window. There’s plenty of swell energy kicking around – we see some big numbers in the combined energy, like 545 (moderate) on the morning of the 9th and a massive 1390 (strong) on the 16th – but the wind is the real boss here, and it’s making a mess of things for most of the run. The water temperature is sitting at about 64°F, which is a touch warmer than normal for this time of year, so you can get away with a spring suit.
We start off on Wednesday, the 9th of September, with a solid groundswell from the W at 5ft and 9 seconds period, but a strong NNW wind of 12 mph is blowing straight onshore. That’s a write-off. That pattern of onshore or cross-onshore winds sticks around through the weekend, with Thursday afternoon seeing a bump in swell to 7ft from the WSW but a messy 19 mph cross-offshore wind. The surf is there, but it’s ugly.
Now, you’ve got to keep an eye on Tuesday, the 15th of September. This is our standout. The swell drops back to around 3ft from the W, with a period of 10-11 seconds. What makes it special is the wind: a clean, moderate offshore breeze from the SSE at 12 mph. That’s 12 mph offshore at Portreath – that’s about as clean as it gets here. The combined energy (226 – moderate) tells you there’s enough push for a fun session. It’s a fairly exposed spot, and the northwest swell direction lines up perfectly with what the break wants. This is an intermediate-level wave, and with that offshore wind, it’ll be peeling nicely. Expect a few folks out – crowds are listed as "often" here – so bring your patience, but it’ll be worth it.
After that, things get bumpy again. The 16th of September brings a big 10ft swell from the WNW, but with 22-25 mph onshore winds, that’s a washout. Too big and too blown out for a paddle. Honestly, with that wind and beach setup, it might be more interesting for the kite crew.
The second week is a quieter story. The swell hangs around a bit, with some waist-high lines from the W, but the wind continues to chop things up. There’s a flicker of hope on Sunday, the 20th of September, with a 6ft WSW swell and a cross-shore wind, but the combined energy (599 – moderate) doesn’t outweigh the lumpy, cross-chop conditions.
The real second-week highlight is Wednesday, the 23rd of September, moving into Thursday, the 24th of September. The swell settles to a clean 4ft to 4ft from the W, with a nice 11-second period. The wind turns light and cross-offshore from the S and SSW, at 6-9 mph. The combined energy sits at a modest 340-396 (moderate), but the conditions will be glassy and clean. With light cross-offshore winds at a beach break like this, the waves will have shape and won’t be too straight. It’s a long-range call, so take it with a pinch of salt, but this Thursday morning session could be a real gem.
So, to wrap it up: Tuesday the 15th is your best bet for clean, fun waves right now. The long-range window around the 24th is promising but less certain. There are gaps of a few days between decent conditions, but the energy is there – it just needs the wind to play ball.
Stay wet, stay patient.
Rusty
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Very mild (max 18°C on Thu morning, min 14°C on Wed night). Winds decreasing (fresh winds from the SSW on Thu morning, light winds from the W by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat night. Warm (max 20°C on Mon morning, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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 | WNW 9 | WNW 8 | WSW 5 | WSW 7 | WSW 9 | W 9 | W 9 | W 8 | W 8 | W 7 | W 11 | W 10 | W 10 | W 10 | W 9 | W 9 | W 8 | WNW 11 | W 10 | W 9 |
Wave Graph | |||||||||||||||||||||
386 | 169 | 73 | 42 | 414 | 639 | 372 | 258 | 157 | 234 | 352 | 798 | 514 | 379 | 214 | 133 | 101 | 104 | 123 | 221 | 1341 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-off | cross-off | cross-off | cross-on | on | on | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross-off | off | off | cross |
High Tide | 4:47PM6.06m | 5:12AM6.03m | 5:31PM6.48m | 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 | ||||||||
Low Tide | 10:49AM0.82m | 11:18PM0.45m | 11:34AM0.41m | 11:59PM0.11m | 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 | |||||||
6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | |
— | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:36 | — | |
mm | — | — | — | — | 1 | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 13 |
Temp °C | 15 | 15 | 15 | 18 | 17 | 18 | 18 | 18 | 16 | 19 | 19 | 18 | 17 | 18 | 19 | 20 | 20 | 18 | 23 | 23 | 17 |
Feels °C | 11 | 12 | 13 | 13 | 12 | 16 | 17 | 17 | 15 | 15 | 16 | 17 | 17 | 18 | 20 | 19 | 19 | 18 | 20 | 21 | 15 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 9 | WNW 8 | WNW 8 | — | WSW 9 | W 9 | W 9 | W 8 | WNW 14 | NW 13 | W 11 | W 10 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 10 | — |
386 | 169 | 73 | 21 | — | 639 | 372 | 258 | 157 | 20 | 41 | 798 | 514 | 379 | 214 | 133 | 101 | 104 | 60 | 221 | — | |
Swell 2 Height (m) Direction Period (s) | WSW 9 | WSW 8 | WSW 8 | WSW 7 | — | — | — | S 16 | — | SW 15 | SW 15 | S 14 | SW 13 | SW 13 | N 4 | N 5 | SW 12 | WNW 13 | WNW 11 | SW 11 | — |
119 | 71 | 39 | 18 | — | — | — | 5 | — | 8 | 8 | 4 | 7 | 7 | 3 | 2 | 6 | 16 | 123 | 5 | — | |
Swell 3 Height (m) Direction Period (s) | — | N 6 | N 6 | N 5 | — | — | — | — | — | — | — | — | — | — | S 13 | SW 12 | — | SW 12 | S 11 | — | — |
— | 29 | 11 | 2 | — | — | — | — | — | — | — | — | — | — | 3 | 6 | — | 6 | 2 | — | — | |
Wind waves Height (m) Direction Period (s) | N 6 | — | — | WSW 5 | WSW 7 | — | — | — | — | W 8 | W 7 | — | — | — | — | — | — | — | S 4 | SW 6 | W 9 |
40 | — | — | 42 | 414 | — | — | — | — | 234 | 352 | — | — | — | — | — | — | — | 21 | 118 | 1341 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 19 | 19 | 0 | 279 | 211 | 21 | 19 | 13 | 8 | 13 | 193 | 61 | 12 | 12 | 12 | 13 | 13 | 0 | 0 | 0 | 20 |
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.










