Surf Forecasts:
Portreath Beach surf forecast from 21 Aug 2026:
- Best quality surf: Thursday 27 Aug, 4AM (local time) - 8ft (2.5m), 7s period, W swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 4AM (local time) - 8ft (2.5m), 7s period, W swell with 800 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 4AM (local time) - 2.5ft (0.7m), 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 Saturday (Aug 22) at 4AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.9m and 6s. 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 2.5m 7s and forecast to arrive on Thursday (Aug 27) at 4AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 7s period and expected on Friday (Aug 28) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 22nd Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 4AM (Thu 27th Aug) | 8ft (2.5m) 7s |
| Most Powerful | 4AM (Thu 27th Aug) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Right then, let's get into it. I've been looking at the charts for Portreath Beach and, honestly, it's a bit of a wait. There's some swell on the way, but the wind is going to be a real pain for the next week or so. You'll have to be patient.
The water temperature is currently sitting at 64°F, which is about a degree and a half warmer than average for this time of year, so it's not too bad.
For the first week or so, we're in a holding pattern. Friday the 21st is a write-off with a strong 16 mph NNW wind making a mess of things. Saturday the 22nd morning has a tiny 2ft swell from the west, but at least the wind is light and cross-offshore, so the surface will be clean. It's barely worth wetting a wetsuit for, though. The energy is very weak (115).
Sunday the 23rd is even smaller, with a 1ft to 1ft swell. Clean conditions again but just not enough to push you along. Then Monday and Tuesday of the next week see a strong 22 mph easterly wind keeping things flat and blown out.
We finally see a bit of size return on Thursday the 27th, with a 4ft to 6ft swell from the WNW, but the wind is a strong cross-shore, making it lumpy and messy. The energy is getting up there (189 to 469) but the quality is poor.
Friday the 28th is a no-go with onshore winds and a messy 8ft cross-on swell (542). The weekend and start of September keep seeing a decent 7ft of swell, but it's constantly battled by onshore and cross-shore winds. By Monday the 31st, there's a 8ft groundswell from the west with a period of 8 seconds and a whopping 699 energy, but it's just too choppy and cross-shore to be any good.
The real standout, the one to circle, is Friday morning, September 4th. The charts are finally lining up. We've got a solid 5ft swell from the west, but the key is the wind. A light 9 mph SSW breeze will be blowing cross-offshore, giving us clean, open faces. The energy is strong at 395. This is the pick of the whole forecast, and at 5ft it's a fun size for the intermediate surfers. Just keep an eye on the crowds as this spot can get busy.
After that, Saturday the 5th has a tiny 3ft leftover swell, but with glassy conditions in the afternoon. It's not going to be a classic, but if you're desperate for a paddle, it's clean.
So, all in all, you're looking at a lot of wind-affected days before a promising morning on September 4th. That's your window.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun morning, min 14°C on Fri night). Winds increasing (light winds from the ENE on Fri night, fresh winds from the E by Mon morning). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Thu morning. Warm (max 21°C on Tue morning, min 15°C on Wed night). Mainly strong winds. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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) | WNW 8 | SW 16 | W 10 | W 9 | N 5 | W 9 | WSW 12 | SW 14 | SW 14 | SW 13 | SW 9 | WNW 10 | W 10 | W 9 | W 8 | SW 7 | W 7 | WNW 6 | W 7 | WNW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 112 | 39 | 45 | 25 | 15 | 14 | 55 | 38 | 31 | 27 | 12 | 34 | 48 | 40 | 35 | 139 | 88 | 265 | 245 | 175 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | cross-on | on | cross-on | glassy |
High Tide | 00:32AM4.24m | 1:16PM4.23m | 2:06AM4.17m | 2:47PM4.35m | 3:25AM4.40m | 3:52PM4.70m | 4:18AM4.77m | 4:39PM5.13m | 4:59AM5.18m | 5:16PM5.57m | 5:34AM5.56m | 5:50PM5.96m | ||||||||
Low Tide | 6:16PM2.23m | 6:55AM2.37m | 7:50PM2.36m | 8:32AM2.35m | 9:20PM2.18m | 9:47AM2.05m | 10:19PM1.81m | 10:37AM1.64m | 11:02PM1.39m | 11:16AM1.23m | 11:39PM0.98m | 11:50AM0.85m | 00:12AM0.64m | |||||||
 |  |  | |  | | | |  | |  | | | | |  |  |  | | | |
 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 4 | — | — |
Temp °C | 16 | 15 | 18 | 18 | 17 | 20 | 20 | 17 | 18 | 20 | 19 | 21 | 20 | 18 | 21 | 20 | 17 | 15 | 17 | 15 |
Feels °C | 11 | 13 | 15 | 15 | 15 | 17 | 16 | 15 | 12 | 13 | 12 | 16 | 19 | 18 | 16 | 12 | 13 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 5 | N 6 | W 9 | W 9 | N 4 | WSW 12 | SE 6 | SW 14 | SW 13 | SW 9 | SW 9 | SW 8 | SSW 8 | W 8 | SW 7 | W 7 | SSW 6 | N 6 | WNW 7 |
| kJ | 112 | 16 | 39 | 25 | 14 | 9 | 55 | 13 | 31 | 27 | 12 | 19 | 35 | 43 | 35 | 139 | 88 | 41 | 46 | 175 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | W 9 | W 10 | WNW 6 | SW 15 | SW 14 | N 4 | WSW 10 | N 4 | W 9 | SSW 13 | WNW 10 | W 10 | W 9 | SW 12 | W 8 | — | SW 12 | SSW 7 | N 6 |
| kJ | 17 | 26 | 45 | 7 | 54 | 51 | 6 | 38 | 3 | 6 | 17 | 34 | 48 | 40 | 6 | 33 | — | 6 | 62 | 11 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 16 | SSW 15 | SSW 15 | NW 6 | W 9 | SE 6 | SW 14 | SW 9 | SW 9 | WNW 11 | NNE 5 | NNE 5 | NNE 5 | SW 12 | WSW 8 | — | — | SW 12 | SW 12 |
| kJ | 25 | 39 | 21 | 21 | 1 | 14 | 11 | 32 | 13 | 3 | 12 | 5 | 5 | 3 | 6 | 7 | — | — | 6 | 5 |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | — | N 5 | N 5 | ESE 5 | ESE 5 | NNE 4 | ESE 7 | ESE 8 | E 4 | ESE 4 | SE 4 | S 3 | SSW 7 | — | SSW 6 | WNW 6 | W 7 | SSW 7 |
| kJ | 34 | 17 | — | 19 | 15 | 25 | 55 | 5 | 82 | 102 | 21 | 18 | 12 | 2 | 207 | — | 212 | 265 | 245 | 51 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 237 | 19 | 0 | 32 | 19 | 4 | 8 | 4 | 235 | 226 | 190 | 249 | 7 | 4 | 12 | 190 | 13 | 21 | 23 | 0 |
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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