Surf Forecasts:
Portreath Beach surf forecast from 29 Aug 2026:
- Best quality surf: Saturday 5 Sep, 7AM (local time) - 5ft (1.6m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 1PM (local time) - 10ft (3.0m), 12s period, WNW swell with 2,434 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 1AM (local time) - 3.5ft (1.0m), 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 1AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.1m and 16s. Another secondary swell of 0.1m and 11s is also forecast. 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 3.0m 12s and forecast to arrive on Friday (Sep 04) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Thursday (Sep 03) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 2nd Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 7AM (Sat 5th Sep) | 5ft (1.6m) 10s |
| Most Powerful | 1PM (Fri 4th Sep) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's cookin' for our little corner of the coast.
Honestly, it’s a bit of a heartbreaker to look at this 16-day run. We’ve got some serious swell showing up, but the wind gods aren’t playing ball. It’s a long stretch of messy, blown-out conditions, and I just can't get excited about it. The first real chance of anything decent doesn’t show up until quite a while from now.
Portreath Beach is the only spot on the radar. The water is sitting around 64°, which is a touch warmer than normal for the time of year. But the opening days are a write-off. We’re looking at a strong, raw 10-ft swell from the WSW on Saturday the 29th, but that’s getting smashed by a 28 mph cross-onshore wind. The combined wave energy is massive (1695), but it’s just messy. The onshores keep hammering us right through Sunday and Monday the 31st, with more 10-ft swells but still onshore winds. Not a pretty picture.
We finally get a break in the wind on Tuesday morning, September 1st, but the swell has dropped right off to a tiny 4-ft. The wind is light and cross-shore, so it’s clean, but there’s just no power. The energy reading is very weak (203) so you’re looking at a grovel. The same goes for Wednesday evening. Surf picks up again on Thursday the 3rd, but the cross-onshore wind comes straight back with it.
Now, there is a glimmer. Look at Sunday the 6th of September. That morning we finally see clean, fresh offshore wind from the SE while there’s a 4-ft swell from the West. That’s a much cleaner setup, though the swell is still small-to-medium. The wind is still a bit strong at 19 mph, but it’s offshore, so the faces will be smooth. It’s not a classic, but it’s the best we’ve got in that window.
After that, the wind turns ugly again, and we are looking at a massive swell event on the weekend of September 12th-13th, with waves pushing 12-ft. The combined energy for the Saturday morning is extreme (3583), but the wind is a howling 19-31 mph cross-onshore. That’s not for paddle surfing. For a beach setup like Portreath, this looks much more interesting for kite surfing.
So for the surfer who needs to paddle, the standout is Sunday the 6th of September at Portreath Beach. It’s clean with offshore wind, but it’s small. Just keep an eye on it.
-Rusty
Short Range ForecastLight rain (total 8mm), mostly falling on Sun morning. Very mild (max 18°C on Sat afternoon, min 16°C on Sat night). Winds decreasing (strong winds from the W on Sat afternoon, light winds from the W by Mon night). | Days 5-7 Weather SummarySome drizzle, heaviest during Wed night. Very mild (max 19°C on Wed morning, min 16°C on Thu night). Winds increasing (light winds from the SW on Tue night, fresh winds from the SW by Wed morning). | |||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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) | WSW 9 | WSW 9 | WSW 9 | WSW 8 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 8 | WSW 6 | WSW 8 | WSW 8 | W 8 | W 8 | WNW 10 | WNW 9 | WNW 12 | WNW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1695 | 841 | 524 | 751 | 2055 | 1424 | 876 | 408 | 189 | 146 | 134 | 242 | 522 | 614 | 548 | 664 | 2171 | 1767 | 2013 | 990 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross-on | on | on | cross-on | cross | cross | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | on | on | cross-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 | 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 | ||||||||
 |  | | | |  | |  |  |  | | | |  | | | | | | | |
 | — | — | 6:31 | — | — | 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 | 1 | — | 3 | 4 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 18 | 17 | 18 | 18 | 16 | 17 | 17 | 16 | 18 | 18 | 17 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 16 |
Feels °C | 11 | 14 | 13 | 13 | 10 | 13 | 13 | 15 | 15 | 15 | 16 | 14 | 16 | 15 | 15 | 13 | 12 | 11 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | — | WSW 9 | N 5 | — | — | — | W 10 | W 10 | W 9 | SW 17 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SW 15 | SW 15 | SSW 15 | SSW 14 | SSW 14 | WNW 11 |
| kJ | — | 841 | 2 | — | — | — | 876 | 408 | 189 | 12 | 10 | 25 | 23 | 21 | 35 | 60 | 23 | 21 | 20 | 990 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 5 | N 5 | — | SW 11 | — | — | — | — | — | — | SSW 14 | — | SSW 14 |
| kJ | — | — | — | — | — | — | — | 13 | 2 | — | 5 | — | — | — | — | — | — | 20 | — | 20 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 18 | SW 18 | SW 17 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 6 | 12 | 12 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 9 | — | WSW 9 | WSW 8 | W 10 | W 10 | NNW 6 | — | — | W 9 | W 8 | WSW 6 | WSW 8 | WSW 8 | W 8 | W 8 | WNW 10 | WNW 9 | WNW 12 | — |
| kJ | 1695 | — | 524 | 751 | 2055 | 1424 | 33 | — | — | 146 | 134 | 242 | 522 | 614 | 548 | 664 | 2171 | 1767 | 2013 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 152 | 13 | 399 | 499 | 157 | 217 | 157 | 12 | 12 | 13 | 0 | 764 | 209 | 226 | 505 | 217 | 217 | 285 | 168 | 13 |
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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