Surf Forecasts:
Portreath Beach surf forecast from 31 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 4AM (local time) - 3ft (0.9m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 7PM (local time) - 7ft (2.2m), 10s period, W swell with 919 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 4AM (local time) - 3ft (0.9m), 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 Wednesday (Sep 02) at 4AM. The primary swell is predicted to be 0.9m 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 2.2m 10s and forecast to arrive on Monday (Aug 31) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Sep 06) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 2nd Sep) | 3ft (0.9m) 8s |
| Best Surf | 4AM (Wed 2nd Sep) | 3ft (0.9m) 8s |
| Most Powerful | 7PM (Mon 31st Aug) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Right then, Rusty here again. Let's take a look at what's cooking in imperial measures.
It's a real rollercoaster. The early part of the forecast is pretty much a write-off with onshore winds and bumpy conditions. There's some size, but the quality's just not there. Things finally start looking up in the second week when a proper groundswell and better wind direction show up.
Right now, on Monday the 31st of August, we've got a solid 10-foot swell from the west hammering Portreath Beach, but a fresh north-westerly is blowing right onshore, so the surf is ugly. The water's about 64°, a touch warmer than usual. This is not a paddling session.
The whole first week into early September is rough. Strong winds, side-shore chop, and poor surf conditions all the way through to Saturday the 5th. On Saturday morning, there's a hint of something better: a clean 4-foot swell from the west-northwest, but the period is a very long 12 seconds and the wind is light and side-on. It’s a borderline call at best.
We then hit a bit of a lull on Sunday the 6th with waist-high waves before things wind up again.
The real standout of the whole 16 days is Tuesday the 15th of September. Check this out: a 7-foot west swell with a long 11-second period. The wind is off-shore from the south-southwest, promising clean, lined-up waves at Portreath Beach. The combined energy is pumping at 1148. The waves are big, over 5 feet, so it’s for the experienced crew. It’s been flagged as marginal, probably because that long-period swell can close out a beach break, but for the experts, Tuesday morning is the best we’ve seen.
Monday the 14th of September is a good backup. We’ve got a 10-foot west swell, but the wind is more side-shore, making it a lumpier, more challenging session. Tuesday is the cleaner, better-shaped day.
Before that, Tuesday the 8th of September offers a bumpy 8-foot swell with cross-shore winds. It’s a possibility, but not the pick.
So, here's the plan: save your energy through this first week of rubbish. The best windows are the morning of Tuesday the 15th of September, with Monday the 14th as a solid, if messier, option.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon morning. Warm (max 20°C on Wed afternoon, min 15°C on Mon night). Winds increasing (light winds from the WSW on Mon night, fresh winds from the SW by Wed morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu morning, min 15°C on Fri night). Winds decreasing (fresh winds from the SW on Thu night, calm by Sat afternoon). | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 10 | W 10 | W 10 | W 9 | W 9 | W 8 | WSW 7 | WSW 7 | WSW 8 | WSW 7 | WSW 8 | WSW 8 | W 8 | W 10 | WNW 10 | WNW 12 | WNW 11 | W 10 | W 9 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1581 | 1019 | 464 | 189 | 146 | 103 | 111 | 303 | 276 | 292 | 308 | 422 | 347 | 441 | 511 | 470 | 343 | 158 | 60 | 38 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross | cross-on | cross | cross-off | cross | cross | cross | cross | cross-on | cross-on | on | on | cross-on | cross-on | off | off | cross-off | cross |
High Tide | 8:01PM6.51m | 8:19AM6.28m | 8:38PM6.31m | 8:58AM6.06m | 9:19PM5.97m | 9:41AM5.71m | 10:06PM5.53m | 10:33AM5.29m | 11:07PM5.05m | 11:43AM4.91m | 00:30AM4.71m | 1:16PM4.78m | 2:07AM4.73m | ||||||||
Low Tide | 1:59PM0.27m | 2:20AM0.30m | 2:34PM0.42m | 2:55AM0.54m | 3:12PM0.69m | 3:35AM0.89m | 3:57PM1.06m | 4:24AM1.31m | 4:55PM1.48m | 5:30AM1.73m | 6:18PM1.81m | 7:05AM1.94m | 8:02PM1.80m | ||||||||
 |  |  | |  | | |  | | | |  | | |  | | | | | | | |
 | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:58 | — | — | 7:55 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 18 | 18 | 17 | 18 | 20 | 18 | 21 | 20 | 19 | 17 | 18 | 16 | 18 | 18 | 16 | 22 | 21 | 18 |
Feels °C | 11 | 12 | 14 | 15 | 15 | 16 | 14 | 17 | 17 | 19 | 18 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 18 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | W 9 | SW 17 | W 8 | SSW 16 | SW 15 | SSW 15 | SW 15 | SW 15 | SSW 15 | W 8 | W 10 | WNW 10 | WNW 12 | WNW 11 | W 10 | W 9 | W 9 | W 8 |
| kJ | 1581 | 1019 | 464 | 189 | 12 | 103 | 25 | 37 | 21 | 36 | 60 | 47 | 347 | 441 | 511 | 470 | 343 | 158 | 60 | 38 | 21 |
Swell 2 Height (m) Direction Period (s) | — | — | N 5 | N 5 | — | SW 16 | S 10 | S 10 | — | — | S 9 | — | SW 14 | SW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 13 | SW 13 | SW 12 |
| kJ | — | — | 8 | 2 | — | 10 | 2 | 2 | — | — | 2 | — | 33 | 33 | 20 | 18 | 17 | 17 | 7 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | S 18 | SW 18 | — | SW 11 | S 10 | — | — | — | — | — | — | S 8 | — | — | — | — | — | SW 13 | SW 12 |
| kJ | — | — | 6 | 12 | — | 5 | 2 | — | — | — | — | — | — | 1 | — | — | — | — | — | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | NNW 6 | — | — | W 9 | — | WSW 7 | WSW 7 | WSW 8 | WSW 7 | WSW 8 | WSW 8 | — | — | — | — | — | NE 4 | SE 4 | SE 4 | SSE 6 |
| kJ | — | 40 | — | — | 146 | — | 111 | 303 | 276 | 292 | 308 | 422 | — | — | — | — | — | 1 | 17 | 37 | 55 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 217 | 168 | 12 | 12 | 13 | 8 | 499 | 211 | 13 | 404 | 211 | 217 | 13 | 217 | 62 | 7 | 12 | 0 | 0 | 210 | 8 |
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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