Surf Forecasts:
Portreath Beach surf forecast from 29 Aug 2026:
- Most powerful swell: Saturday 29 Aug, 4PM (local time) - 11ft (3.5m), 9s period, WSW swell with 1,938 kJ wave energy.
Best Forecast Surf Conditions for Portreath Beach this week:
The most powerful waves expected at Portreath Beach in the next 16 days are 3.5m 9s and forecast to arrive on Saturday (Aug 29) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Monday (Aug 31) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Sat 29th Aug) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on the cards for the next couple of weeks around Portreath Beach.
To be straight with you, it’s a pretty grim run of surf for the foreseeable. The first recommendation doesn’t pop up until the morning of Sunday the 6th of September, so we’ve got a solid week of near nothing to get through. That’s a long gap with no real surf to speak of. The water is sitting at 64°, which is a touch warmer than normal for the time of year, so at least it’s not freezing out there.
The first real chance of something surfable arrives on Sunday the 6th of September in the morning. We’re looking at a small 3 ft swell from the west, with a period of 8 seconds. The combined swell energy is weak at 143, so it’s not going to have much push. The wind is light and cross-off from the south, which should keep it clean. Portreath Beach is a fairly exposed spot, and swells from the northwest suit it best, so this westerly direction is okay but not ideal. The crowd factor is often, so you might have some company. It’s not a standout, but it’s the first surfable wave we’ve seen in a while.
The next morning, Monday the 7th of September, brings a slightly better prospect. The swell picks up to 6 ft from the west, with a period of 10 seconds, and the combined energy is a moderate 633. The wind is a light 3 mph from the north-northeast, giving a cross-shore flow that should keep things fairly clean. The water is still that touch warmer than normal. Again, it’s not pumping, but it’s the best we’ve got in this window. The break is fairly consistent, so there should be some waves rolling through.
The standout in this whole forecast period, if you can call it that, is the late afternoon of Saturday the 5th of September. The swell is only 3 ft from the west with a 10-second period, and the combined energy is weak at 184, but the wind is light and cross-off from the south-southwest, giving clean conditions. It’s the cleanest we’ll see, but the swell is tiny. Still, if you’re desperate, that’s the moment to paddle out.
After that, things taper off quickly. By the second week, from the 9th of September onwards, the swell drops to under 3 ft, and the wind is mostly onshore or strong, with poor conditions. The combined energy falls into the weak range, often under 100. There’s nothing worth chasing.
Overall, it’s a lean period for Portreath Beach. The surf is small, inconsistent, and mostly messy. The best bet is that Monday morning of the 7th of September, with a modest 6 ft swell and light winds. Keep your expectations low, and maybe bring a longboard.
Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Sat morning. Very mild (max 19°C on Sat morning, min 16°C on Sat night). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the WSW by Mon night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Warm (max 20°C on Wed afternoon, min 16°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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) | SW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | W 10 | W 9 | W 10 | W 9 | W 9 | W 9 | W 8 | WSW 7 | WSW 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 9 | WNW 9 |
Wave Graph | |||||||||||||||||||||
646 | 1938 | 773 | 549 | 751 | 1879 | 1060 | 740 | 341 | 188 | 146 | 157 | 298 | 744 | 719 | 515 | 427 | 529 | 541 | 495 | 355 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross | cross-on | on | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on |
High Tide | 6:54PM6.48m | 7:11AM6.32m | 7:27PM6.57m | 7:44AM6.37m | 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 | ||||||||
Low Tide | 12:55PM0.34m | 1:15AM0.22m | 1:27PM0.24m | 1:47AM0.20m | 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 | ||||||||
6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | |
— | 8:13 | — | — | 8:10 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | |
mm | 4 | — | — | 3 | 3 | — | — | — | — | — | — | — | 2 | — | 4 | — | — | — | — | — | — |
Temp °C | 19 | 18 | 17 | 18 | 18 | 16 | 17 | 17 | 16 | 17 | 18 | 18 | 19 | 20 | 18 | 19 | 18 | 17 | 17 | 16 | 16 |
Feels °C | 16 | 11 | 14 | 14 | 12 | 11 | 13 | 14 | 15 | 14 | 14 | 14 | 16 | 16 | 16 | 15 | 13 | 13 | 10 | 10 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | WSW 9 | W 9 | — | — | W 9 | W 10 | W 9 | W 9 | SW 17 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | WNW 9 |
— | — | 773 | 395 | — | — | 1060 | 740 | 341 | 188 | 12 | 10 | 25 | 23 | 21 | 36 | 60 | 37 | 33 | 33 | 355 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 6 | N 6 | N 5 | N 5 | SW 11 | — | — | S 18 | — | — | — | SSW 14 | — | SSW 14 |
— | — | — | — | — | — | — | 32 | 10 | 2 | 1 | 5 | — | — | 6 | — | — | — | 20 | — | 20 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 18 | SW 18 | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 6 | 12 | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 8 | WSW 9 | — | WSW 9 | WSW 8 | W 10 | NNW 6 | — | — | — | W 9 | W 8 | WSW 7 | WSW 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 9 | — |
646 | 1938 | — | 549 | 751 | 1879 | 50 | — | — | — | 146 | 157 | 298 | 744 | 719 | 515 | 427 | 529 | 541 | 495 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 564 | 246 | 13 | 106 | 398 | 704 | 217 | 217 | 8 | 13 | 13 | 211 | 399 | 555 | 211 | 211 | 744 | 249 | 505 | 217 | 62 |
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.











