Surf Forecasts:
Portreath Beach surf forecast from 7 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 10PM (local time) - 3ft (0.9m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 7ft (2.2m), 14s period, W swell with 1,887 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 10PM (local time) - 3ft (0.9m), 9s 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 Wednesday (Sep 09) at 10PM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.7m 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 2.2m 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 0.8m 4s period and expected on Saturday (Sep 12) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 9th Sep) | 3ft (0.9m) 9s |
| Best Surf | 10PM (Wed 9th Sep) | 3ft (0.9m) 9s |
| Most Powerful | 7AM (Mon 7th Sep) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's chew through what's coming up for the next couple of weeks. It's a bit of a mixed bag, honestly, with a lot of wind knocking things around.
The early part of the window is a write-off, I'm afraid. We’ve got a solid run of poor conditions from the start right through the middle of the month. There’s a bit of swell in the water, but the wind is just ruining it. The first real chance of anything decent doesn't show up until the 16th of September.
For the first standout, you’re looking at Portreath Beach. On the morning of the 16th, a solid 10-foot swell from the west is pushing in, with only a light breeze from the northwest. The water is a touch warmer than average for this time of year at 64°. The combined energy is strong at 1197 (moderate to strong wave energy), but the period is a short 8 seconds, so it’ll be a bit crumbly, not a classic groundswell shape. It’s a fairly exposed spot, so that size is going to be serious. At 10-foot, this is strictly for the experts only. The afternoon holds similar size, 10-foot, combined energy of 1557, with a gentle breeze. It’s still big and unruly, and the forecast is "marginal". It’s not perfect, but it’s the best looking lump in a long, poor run.
Then we get a bit of a gap before the next hopeful window. The 18th of September morning sees another big pulse of 10-foot from the west, with a cross-offshore breeze from the southwest. The combined energy is 912. It’s cleaner, but again, it’s massive and only for the brave. The 17th of September is also worth a mention with an 8-foot west swell and that light southwest wind, giving you a clean-ish look in the morning, but it’s still a fair size.
The very end of the forecast, around the 21st of September, looks like a real drop-off in size, but the wind is finally glassy. If you’re desperate for a longboard, the morning of the 21st has a tiny 3-foot swell from the southwest with a light cross-offshore breeze, and the afternoon goes completely glassy with 3-foot. It’s small, but it’s the only time in the whole outlook where the ocean is flat and clean. For the rest of the run, the wind is onshore, cross, or just too strong, making a mess of things.
Stay safe out there.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Mon night. Warm (max 20°C on Sun afternoon, min 15°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Thu afternoon, min 15°C on Wed night). Winds increasing (calm on Fri night, fresh winds from the SW by Sat morning). | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 16 | W 13 | W 12 | W 11 | W 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WSW 6 | W 8 | WSW 9 | W 9 | W 8 | W 8 | W 8 | W 7 | W 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 74 | 417 | 1780 | 1209 | 1010 | 685 | 600 | 839 | 442 | 218 | 96 | 165 | 643 | 626 | 359 | 241 | 153 | 90 | 324 | 242 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | on | cross-on | cross | on | on | on | on | cross-on | cross | cross | cross | cross-on | on | on | cross-off | cross | cross | cross-on |
High Tide | 2:07AM4.73m | 2:47PM5.05m | 3:27AM5.10m | 3:55PM5.55m | 4:25AM5.59m | 4:47PM6.06m | 5:12AM6.03m | 5:31PM6.48m | 5:53AM6.36m | 6:11PM6.74m | 6:31AM6.55m | 6:48PM6.80m | ||||||||
Low Tide | 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 | 12:14PM0.13m | 00:37AM-0.05m | 12:50PM0.01m | 1:11AM-0.04m | |||||||
 |  | |  |  |  | | | | |  | | | | | |  | | |  | |
 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | 7:55 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:42 | — |
mm | — | — | — | — | 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 20 | 18 | 17 | 17 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 18 | 17 | 18 | 18 | 16 | 18 | 20 | 18 |
Feels °C | 18 | 18 | 13 | 13 | 11 | 11 | 9 | 11 | 13 | 12 | 13 | 12 | 14 | 16 | 16 | 16 | 17 | 14 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 13 | W 12 | SW 12 | W 9 | SW 11 | — | WNW 9 | WNW 9 | WNW 8 | N 6 | N 5 | WSW 9 | W 9 | W 8 | W 8 | W 8 | NW 12 | W 7 |
| kJ | 74 | 123 | 1780 | 1209 | 5 | 685 | 4 | — | 442 | 218 | 96 | 2 | 1 | 626 | 359 | 241 | 153 | 90 | 39 | 242 |
Swell 2 Height (m) Direction Period (s) | SW 12 | W 16 | — | SW 12 | — | SW 11 | — | — | — | N 6 | N 6 | W 12 | — | — | — | S 16 | N 4 | WNW 14 | WNW 16 | NW 14 |
| kJ | 6 | 417 | — | 6 | — | 5 | — | — | — | 42 | 18 | 11 | — | — | — | 5 | 1 | 18 | 25 | 53 |
Swell 3 Height (m) Direction Period (s) | W 20 | SW 12 | — | — | — | — | — | — | — | WSW 8 | W 13 | W 12 | — | — | — | — | W 16 | — | SW 15 | S 14 |
| kJ | 8 | 6 | — | — | — | — | — | — | — | 69 | 3 | 11 | — | — | — | — | 5 | — | 8 | 4 |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | — | — | W 11 | WNW 9 | WNW 9 | WNW 9 | N 6 | — | WSW 8 | WSW 6 | W 8 | — | — | — | — | WSW 5 | W 7 | — |
| kJ | 13 | 10 | — | — | 1010 | 354 | 600 | 839 | 44 | — | 50 | 165 | 643 | — | — | — | — | 69 | 324 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 14 | 13 | 21 | 13 | 23 | 108 | 285 | 217 | 19 | 193 | 13 | 400 | 209 | 61 | 152 | 23 | 0 | 226 | 211 | 61 |
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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