Surf Forecasts:
Portreath Beach surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 10s period, W swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 4ft (1.2m), 11s period, W swell with 319 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 10s 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 (Aug 12) at 4AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.1m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Portreath Beach in the next 16 days are 1.2m 11s and forecast to arrive on Thursday (Aug 13) at 10AM. 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 5s period and expected on Wednesday (Aug 12) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 10s |
| Best Surf | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 10s |
| Most Powerful | 10AM (Thu 13th Aug) | 4ft (1.2m) 11s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s look at what Portreath Beach has cookin’ for the next couple weeks.
Right now, on Wednesday morning the 12th, we’ve got a small but clean window. Swell is 3ft out of the west, 10-second period, with 127 energy – nothing huge, but that offshore wind from the ESE has things looking tidy. Good for a quick one. The afternoon stays rideable with 3ft waves and a light cross-off breeze.
Then it’s a long dry spell. From Thursday morning the 13th all the way through the 19th of August, it’s onshore wind and bumpy surf. Thursday the 13th has 4ft west swell but cross-on wind wrecks it. The weekend is no better, with strong cross-onshore winds and lumpy waves. By Wednesday the 19th, the swell builds to 6ft from the WNW with an 11-second period – good energy (799 in the morning, 813 in the afternoon). But with a fresh to strong cross-onshore wind, it’s messy. The beach setup here is better for kite surfing than paddling that day.
Thursday the 20th brings the biggest swell of the period – a solid 10ft from the NW in the morning (1367 energy), dropping to 8ft in the afternoon. But it’s onshore, rainy, and for experts only. Don’t even think about it if you’re not dialed in.
After that, things fade. Friday the 21st drops to 3ft and 3ft, but the wind stays cross-onshore. The 22nd and 23rd have some size again – 6ft on Saturday afternoon, 7ft on Sunday morning – but again, cross-onshore wind and choppy conditions. No good.
From Monday the 24th through Wednesday the 27th, it’s onshore or cross-onshore wind with swell bouncing between 2ft and 10ft. The last day, Thursday the 27th, shows a massive 10ft west swell with a 10-second period and a crazy 2849 energy reading, but it’s fresh cross-onshore and rainy. That’s a beast for experts only, and even then it’ll be ugly.
The standout? Wednesday morning the 12th is your best bet. Small but glassy. For size, Thursday the 20th is the biggest, but leave it for the pros.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 18°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Mon morning. Very mild (max 17°C on Fri night, min 15°C on Sat afternoon). Winds decreasing (fresh winds from the N on Sat morning, light winds from the N by Sun night). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | N 6 | N 5 | N 5 | N 5 | W 7 | W 9 | W 8 | W 7 | W 6 | WNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 125 | 139 | 180 | 319 | 284 | 183 | 159 | 184 | 161 | 111 | 97 | 104 | 58 | 28 | 27 | 12 | 14 | 30 | 89 | 128 | 265 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | glassy | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | off | cross-on | cross | cross-on |
High Tide | 5:25AM6.02m | 5:47PM6.47m | 6:11AM6.33m | 6:31PM6.76m | 6:54AM6.50m | 7:13PM6.86m | 7:34AM6.51m | 7:53PM6.76m | 8:13AM6.37m | 8:31PM6.49m | 8:51AM6.09m | 9:09PM6.08m | 9:28AM5.72m | 9:48PM5.59m | |||||||
Low Tide | 11:49AM0.44m | 00:17AM0.14m | 12:34PM0.15m | 1:00AM-0.06m | 1:15PM0.01m | 1:40AM-0.08m | 1:54PM0.05m | 2:18AM0.07m | 2:31PM0.25m | 2:54AM0.38m | 3:07PM0.57m | 3:29AM0.78m | 3:44PM0.99m | ||||||||
 | |  | | |  |  |  | | | | | | | |  | | | | |  | |
 | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — |
 | — | 8:45 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 26 | 28 | 22 | 21 | 22 | 19 | 20 | 19 | 17 | 17 | 16 | 16 | 17 | 17 | 16 | 17 | 17 | 17 | 21 | 20 | 17 |
Feels °C | 23 | 27 | 23 | 19 | 21 | 20 | 20 | 18 | 15 | 12 | 11 | 11 | 13 | 13 | 14 | 15 | 14 | 18 | 19 | 17 | 12 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | N 4 | N 4 | W 8 | SW 17 | SW 17 | SSW 17 |
| kJ | 125 | 139 | 180 | 319 | 284 | 183 | 159 | 184 | 161 | 111 | 95 | 41 | 26 | 24 | 15 | 9 | 3 | 30 | 11 | 11 | 29 |
Swell 2 Height (m) Direction Period (s) | SW 6 | — | E 5 | ESE 5 | E 5 | E 5 | S 13 | S 13 | SW 13 | S 12 | — | SW 12 | S 12 | SW 18 | SW 18 | W 7 | W 9 | — | NW 5 | — | — |
| kJ | 1 | — | 13 | 8 | 4 | 2 | 3 | 3 | 7 | 3 | — | 6 | 3 | 13 | 12 | 8 | 14 | — | 8 | — | — |
Swell 3 Height (m) Direction Period (s) | SW 6 | — | — | — | — | S 11 | S 13 | — | S 10 | — | — | S 20 | S 19 | E 5 | — | SW 18 | W 7 | SW 16 | SSW 17 | — | — |
| kJ | 1 | — | — | — | — | 2 | 3 | — | 2 | — | — | 7 | 7 | 1 | — | 12 | 8 | 10 | 28 | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 3 | — | NW 2 | NW 3 | WNW 3 | — | — | N 4 | N 5 | N 5 | N 6 | N 5 | N 5 | N 5 | — | NNW 4 | WNW 3 | W 7 | W 6 | WNW 7 |
| kJ | 6 | 3 | — | 1 | 2 | 2 | — | — | 12 | 62 | 97 | 104 | 58 | 28 | 27 | — | 6 | 2 | 89 | 128 | 265 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 19 | 211 | 13 | 13 | 36 | 86 | 281 | 260 | 257 | 285 | 399 | 399 | 383 | 278 | 33 | 13 | 13 | 285 |
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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