
Surf Forecasts:
Portreath Beach surf forecast from 4 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 7AM (local time) - 7ft (2.1m), 7s period, W swell with 437 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 2.1m 7s and forecast to arrive on Wednesday (Aug 05) 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 0.5m 3s period and expected on Tuesday (Aug 11) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Wed 5th Aug) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s shaping up for Portreath Beach over the next couple of weeks.
Right off the bat, I gotta be straight with you – this is a grim stretch. The whole 16-day window is a write-off, plain and simple. There is not a single day where the conditions come together for a decent paddle. We’re looking at a solid fortnight of onshore slop, lumpy cross-chop, and waves that are either too small, too messy, or both. The water temp is sitting at 65°, which is a touch warmer than normal for this time of year, but that’s about the only upside.
The first bit of real swell energy shows up on the morning of Wednesday the 5th of August, with a 7 ft swell from the west, but it’s getting hammered by a fresh 19 mph cross-onshore wind. The combined energy hits 423 (moderate wave energy), and it’s unsurfable junk. The period is a short, weak 7 seconds, so there’s no shape to it. That pattern sticks around for days – onshore winds, poor surf quality, scores of zero across the board.
Things get a bit cleaner around Tuesday the 11th of August, with offshore winds from the ESE, but the swell is tiny – only 1.0 ft to 0.7 ft. Clean, yes, but completely flat. Then on Wednesday the 12th of August, we finally see a slight improvement: a 3 ft swell from the WSW with a 9-second period and a moderate offshore wind. The combined energy is 115 (weak wave energy), and the notes say “surfable waves but very ordinary conditions.” That’s the best it gets, and honestly, it’s barely worth wetting a wetsuit.
After that, it’s back to onshore winds and messy surf for the rest of the forecast. The sea is delivering a 4 ft to 5 ft swell from the west and southwest with a moderate energy around 235 to 273, but the wind is on it, and the quality is poor. By the 19th of August, there’s a 4 ft swell from the WNW with a 9-second period and combined energy of 439, but it’s straight onshore again.
So, here’s the bottom line: no standouts, no hidden gems, no reason to rush down to the beach with a board. For Portreath Beach, this is one of those blank runs that happens. It won’t stay poor forever, but for now, you’re better off finding something else to do.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Tue morning, min 15°C on Thu night). Winds decreasing (fresh winds from the WNW on Wed morning, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sat morning, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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 7 | SW 7 | WSW 6 | W 7 | WNW 7 | WNW 6 | WNW 6 | WNW 6 | W 6 | W 9 | W 9 | W 9 | WNW 9 | WNW 10 | WNW 9 | W 8 | WNW 5 | WNW 5 | WNW 6 | WNW 5 | WNW 8 |
Wave Graph | |||||||||||||||||||||
171 | 149 | 182 | 416 | 239 | 188 | 89 | 33 | 17 | 15 | 15 | 15 | 16 | 19 | 44 | 82 | 48 | 42 | 45 | 23 | 21 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | glassy | on | cross-on | cross-on | on | on | cross-on | cross-on | cross |
High Tide | 9:45PM5.85m | 10:08AM5.55m | 10:32PM5.55m | 11:00AM5.27m | 11:30PM5.22m | 12:05PM5.02m | 00:44AM4.96m | 1:26PM4.93m | 2:09AM4.95m | 2:49PM5.12m | 3:28AM5.21m | 4:00PM5.54m | |||||||||
Low Tide | 3:39PM0.89m | 4:05AM0.97m | 4:23PM1.14m | 4:52AM1.25m | 5:17PM1.42m | 5:53AM1.54m | 6:29PM1.65m | 7:13AM1.71m | 7:59PM1.68m | 8:42AM1.63m | 9:25PM1.41m | 9:58AM1.29m | 10:34PM0.96m | ||||||||
5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | |
— | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 17 | 17 | 17 | 16 | 17 | 17 | 16 | 18 | 18 | 16 | 20 | 20 | 17 | 19 | 19 | 17 | 17 | 18 | 19 |
Feels °C | 18 | 17 | 15 | 11 | 11 | 12 | 13 | 13 | 14 | 15 | 15 | 15 | 18 | 18 | 16 | 16 | 16 | 17 | 14 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | W 9 | SW 15 | SW 14 | SW 13 | SW 13 | W 11 | WNW 6 | N 5 | W 6 | WNW 5 | W 9 | WNW 5 | WNW 9 | WNW 10 | WNW 9 | SW 12 | WNW 9 | WNW 8 | WNW 6 | WNW 5 | WNW 8 |
7 | 8 | 8 | 7 | 7 | 9 | 89 | 11 | 15 | 10 | 15 | 6 | 16 | 19 | 44 | 6 | 15 | 14 | 45 | 23 | 21 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 15 | — | — | — | SW 13 | N 5 | W 10 | N 5 | W 9 | WNW 6 | W 9 | WNW 5 | W 9 | WSW 7 | S 14 | SW 12 | SW 12 | WNW 9 | WNW 8 | WSW 6 |
8 | 4 | — | — | — | 7 | 7 | 17 | 8 | 15 | 3 | 15 | 3 | 6 | 10 | 4 | 6 | 6 | 8 | 7 | 4 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | — | — | — | — | — | W 10 | SSW 6 | W 10 | N 5 | SW 12 | SW 12 | NW 11 | SW 11 | SW 12 | S 15 | S 15 | W 14 | SW 7 | WSW 7 | W 10 |
8 | — | — | — | — | — | 18 | 3 | 17 | 2 | 6 | 5 | 5 | 5 | 6 | 4 | 4 | 4 | 2 | 4 | 2 | |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | WSW 6 | W 7 | WNW 7 | WNW 6 | — | WNW 6 | — | — | WNW 5 | — | — | — | — | W 8 | WNW 5 | WNW 5 | N 4 | N 5 | N 4 |
171 | 149 | 182 | 416 | 239 | 188 | — | 33 | — | — | 9 | — | — | — | — | 82 | 48 | 42 | 6 | 10 | 10 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 23 | 279 | 211 | 217 | 217 | 211 | 36 | 557 | 227 | 400 | 400 | 390 | 402 | 36 | 19 | 19 | 1601 | 161 | 20 | 328 | 19 |
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.











