
Surf Forecasts:
Portreath Beach surf forecast from 12 Sep 2026:
- Best quality surf: Monday 14 Sep, 10PM (local time) - 3.5ft (1.0m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 4AM (local time) - 5ft (1.6m), 12s period, WNW swell with 743 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 10PM (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 Monday (Sep 14) at 10PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.1m and 12s. 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 1.6m 12s and forecast to arrive on Friday (Sep 18) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 15s period and expected on Saturday (Sep 12) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 14th Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 10PM (Mon 14th Sep) | 3.5ft (1.0m) 8s |
| Most Powerful | 4AM (Fri 18th Sep) | 5ft (1.6m) 12s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a proper look at what’s coming down the line for our stretch of coast. I’ll be straight with you – this 16-day window opens with a long, quiet spell, so don’t be in a rush to grab your board just yet.
We’re looking at Portreath Beach for the whole period. The water temp is sitting about average for this time of year, so nothing to write home about there. For the first full week and a bit, it’s pretty much a write-off for surfing. From Saturday the 12th right through to Monday the 21st, we’ve got a run of poor conditions. The swell energy is there – moderate to strong at times (energy values between 263 and 744) – but the wind is a mess. It’s mostly cross-shore, cross-onshore, or onshore, and it’s chopping everything up. Wave heights bob around 4 ft to 6 ft, but with that wind and short period (mostly 8 to 10 seconds), the quality is just not there. On Monday the 15th and Wednesday the 16th, we see onshore winds gusting 19 mph, making it look more like a kite session than a surf. Nothing to recommend here.
After that, things go very flat. From Tuesday the 22nd of September through to Saturday the 26th, swell heights drop right down to 1 ft to 2 ft. A couple of those mornings have clean wind – like Tuesday the 22nd morning with a light breeze and a clean look (energy a weak 76) – but the swell is just too small to call it a surf. It’s ankle-biters at best, with 2 ft on a 12-second period, which is long but there’s no power behind it. A moderate offshore wind on Thursday the 24th afternoon keeps things clean, but again, it’s only 2 ft.
Then on Sunday the 27th, we get a spike. The morning sees a 6 ft swell from the WNW, but the period is only 6 seconds and the wind is a messy cross-shore at 16 mph, producing a cross-chop. The wave energy is moderate (304) but the conditions are labelled poor. It’s a shame, because if that swell had a cleaner wind, it could’ve been something.
So, the standout? Honestly, there isn’t one in this window. For surfing, the whole 16 days is a dud. The best of a bad bunch is probably Thursday the 24th afternoon at Portreath Beach – tiny, but with a clean 16 mph offshore from the SE (energy a weak 90) and a longer 12-second period. If you’re a beginner wanting to practice pop-ups in small, clean water, that’s your window. For anyone else, stay patient. Portreath is fairly exposed and consistent, so it tends not to stay this poor for long, and forecasts can change.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 20°C on Mon morning, min 17°C on Sat morning). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Very mild (max 17°C on Tue morning, min 14°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 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 8 | W 8 | W 10 | W 10 | W 10 | W 10 | W 9 | W 8 | W 8 | WNW 8 | WNW 8 | W 8 | W 10 | WNW 10 | W 10 | WNW 7 | WNW 7 | WNW 10 | WNW 13 | WNW 12 | WNW 12 |
Wave Graph | |||||||||||||||||||||
239 | 418 | 724 | 578 | 432 | 262 | 189 | 169 | 130 | 350 | 424 | 333 | 499 | 588 | 468 | 277 | 292 | 544 | 660 | 519 | 203 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross-off | on | on | on | on | on | cross-on | on | on | on | cross-on | cross-on | cross |
High Tide | 6:48PM6.80m | 7:07AM6.57m | 7:24PM6.68m | 7:41AM6.44m | 7:59PM6.41m | 8:15AM6.17m | 8:33PM6.00m | 8:49AM5.79m | 9:08PM5.53m | 9:25AM5.34m | 9:45PM5.02m | 10:05AM4.86m | 10:31PM4.52m | ||||||||
Low Tide | 12:50PM0.01m | 1:11AM-0.04m | 1:25PM0.06m | 1:44AM0.13m | 1:58PM0.25m | 2:16AM0.43m | 2:30PM0.57m | 2:47AM0.82m | 3:03PM0.97m | 3:19AM1.26m | 3:39PM1.43m | 3:56AM1.72m | 4:23PM1.89m | ||||||||
6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | |
— | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:30 | — | — | 7:29 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 18 | 19 | 18 | 18 | 19 | 19 | 20 | 20 | 18 | 17 | 16 | 16 | 14 | 14 | 16 | 16 | 16 | 15 | 16 | 17 | 16 |
Feels °C | 13 | 15 | 16 | 17 | 19 | 20 | 18 | 18 | 17 | 13 | 11 | 13 | 9 | 9 | 12 | 10 | 10 | 11 | 14 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 14 | NW 12 | S 14 | SW 13 | W 10 | W 10 | W 9 | W 8 | W 8 | SW 11 | S 11 | W 8 | W 10 | WNW 10 | N 5 | W 10 | WNW 9 | S 13 | WNW 13 | WNW 12 | WNW 12 |
20 | 40 | 4 | 7 | 432 | 262 | 189 | 169 | 130 | 5 | 2 | 333 | 499 | 588 | 14 | 90 | 144 | 3 | 660 | 519 | 203 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 15 | S 14 | SW 13 | SW 13 | S 13 | SW 12 | SW 12 | WNW 12 | — | — | S 11 | NW 12 | S 13 | S 13 | N 5 | — | — | SW 12 | S 12 | SW 16 |
8 | 8 | 4 | 7 | 7 | 3 | 6 | 6 | 27 | — | — | 2 | 38 | 4 | 4 | 2 | — | — | 6 | 3 | 10 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 12 | — | — | — | S 11 | — | — | — | — | S 18 | S 18 | S 15 | S 12 |
— | — | — | — | — | — | — | — | 6 | — | — | — | 2 | — | — | — | — | 6 | 6 | 4 | 3 | |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | W 10 | W 10 | — | — | — | — | — | WNW 8 | WNW 8 | N 5 | N 6 | N 6 | W 10 | WNW 7 | WNW 7 | WNW 10 | — | — | WSW 6 |
239 | 418 | 724 | 578 | — | — | — | — | — | 350 | 424 | 22 | 75 | 42 | 468 | 277 | 292 | 544 | — | — | 91 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 192 | 211 | 13 | 106 | 61 | 8 | 13 | 13 | 0 | 162 | 161 | 108 | 161 | 108 | 211 | 211 | 217 | 217 | 23 | 226 | 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.










