
Surf Forecasts:
Portreath Beach surf forecast from 8 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 10PM (local time) - 2.5ft (0.8m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 4AM (local time) - 7ft (2.1m), 10s period, W swell with 962 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 10PM (local time) - 2.5ft (0.8m), 8s period with WSW 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 09) at 10PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.6m and 9s. 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 2.1m 10s and forecast to arrive on Tuesday (Sep 08) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Sep 10) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 9th Sep) | 2.5ft (0.8m) 8s |
| Best Surf | 10PM (Wed 9th Sep) | 2.5ft (0.8m) 8s |
| Most Powerful | 4AM (Tue 8th Sep) | 7ft (2.1m) 10s |
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 coming up for Portreath Beach over the next couple of weeks.
Right off the bat, I gotta be straight with you – the next week and a half is looking pretty grim. We’ve got a big gap with no real surf to get excited about. From Monday 7th September all the way through to the morning of Saturday 19th September, it’s basically a write-off. The water temperature is sitting at 64°F, which is a touch warmer than normal for this time of year, but that’s about the only thing going for it.
We start off with a fair bit of energy in the water – big combined swell energy readings of 1224 (strong) on Monday afternoon – but it’s all messy. A 7ft swell from the W with a 12-second period sounds okay, but the wind is howling from the WSW at 16 mph, making it a choppy cross-on mess. That pattern just keeps going: Tuesday has a 6ft W swell but a 19 mph NNW cross-on wind, and Wednesday’s a bit smaller but still onshore. The conditions are just poor for a paddle surf. With that much wind and swell, the setup at Portreath Beach looks more interesting for kite surfing than paddle surfing for the first few days.
We get a bit of a breather on Thursday 10th – the swell drops to 2ft to 3ft, with a clean cross-off wind, but the period is short (5-7 seconds) and the energy is weak (92 and 77). It’s clean, but there’s nothing to push you down the line. Friday 11th jumps back up to 5ft, but the wind is onshore again.
The first chance of something half-decent comes on Saturday 12th September. The morning shows a 3ft W swell with a 10-second period, a gentle cross-off breeze from the SSW, and clean conditions. The combined energy is 237 (moderate), and the report says “surfable waves but very ordinary conditions.” It’s not going to be a standout, but it’s the first window where you could actually get a few rides. The afternoon sees the wind pick up again, so make the most of the morning.
After that, it’s back to onshore winds and choppy junk until we finally get a change. The real hope comes on Saturday 19th September. The morning shows a 2ft W swell with a 9-second period, a moderate offshore wind from the SE at 12 mph, and clean conditions. The combined energy is 102 (weak to moderate), but that offshore wind is a major positive – it’ll be clean. The report calls it “surfable waves but very ordinary conditions,” but trust me, after what we’ve been through, clean 2ft with offshore wind at Portreath Beach is the best on offer in this whole period. Crowds are likely here, as it’s often busy, so get there early.
Finally, Sunday 20th September shows a pulse of new swell – 5ft to 6ft from the W with a period of 8-12 seconds, and combined energy climbing to 413 and 794 (strong). But the wind is onshore again from the WNW, so the quality will be poor. It’s a promising sign of more energy to come, but the wind needs to sort itself out.
So, to wrap it up: the standout window is the morning of Saturday 19th September – clean offshore winds and small but surfable waves. The morning of Saturday 12th is a second option if you’re desperate for a paddle. Everything else is a case of waiting for a better forecast. It’s a tough run, but it tends not to stay poor for long around here.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon night. Very mild (max 17°C on Thu morning, min 14°C on Mon night). Winds decreasing (fresh winds from the NW on Tue afternoon, light winds from the W by Wed afternoon). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Very mild (max 19°C on Sun afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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 9 | WNW 9 | W 9 | WNW 9 | WNW 9 | WNW 8 | SW 7 | WSW 6 | WSW 9 | W 9 | W 8 | W 8 | W 10 | W 10 | W 7 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 |
Wave Graph | |||||||||||||||||||||
627 | 613 | 595 | 254 | 140 | 73 | 56 | 136 | 917 | 493 | 258 | 185 | 230 | 294 | 315 | 461 | 390 | 234 | 159 | 123 | 116 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-off | cross-off | cross-off | on | cross-on | on | cross-on | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross-off |
High Tide | 3:55PM5.55m | 4:25AM5.59m | 4:47PM6.06m | 5:12AM6.03m | 5:31PM6.48m | 5:53AM6.36m | 6:11PM6.74m | 6:31AM6.55m | 6:48PM6.80m | 7:07AM6.57m | 7:24PM6.68m | 7:41AM6.44m | 7:59PM6.41m | ||||||||
Low Tide | 9:55AM1.32m | 10:29PM0.91m | 10:49AM0.82m | 11:18PM0.45m | 11:34AM0.41m | 11:59PM0.11m | 12:14PM0.13m | 00:37AM-0.05m | 12:50PM0.01m | 1:11AM-0.04m | 1:25PM0.06m | 1:44AM0.13m | 1:58PM0.25m | 2:16AM0.43m | |||||||
6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | |
— | 7:51 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | |
mm | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 15 | 15 | 15 | 17 | 17 | 17 | 16 | 15 | 14 | 16 | 17 | 17 | 18 | 19 | 19 | 21 | 20 | 18 |
Feels °C | 9 | 9 | 11 | 11 | 13 | 13 | 12 | 12 | 14 | 13 | 11 | 12 | 12 | 13 | 14 | 18 | 19 | 19 | 20 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | W 9 | — | W 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | W 11 | WSW 9 | W 9 | W 8 | W 8 | W 10 | W 10 | S 14 | SW 13 | W 9 | W 9 | W 9 | W 9 | W 8 |
627 | — | 595 | 254 | 140 | 73 | 37 | 9 | 917 | 493 | 258 | 185 | 230 | 294 | 4 | 7 | 390 | 234 | 159 | 123 | 116 | |
Swell 2 Height (m) Direction Period (s) | SW 11 | — | — | WSW 8 | WSW 8 | WSW 8 | N 5 | — | — | — | S 16 | N 5 | NW 14 | — | — | SW 13 | SW 13 | S 13 | SW 12 | SW 12 | WNW 12 |
5 | — | — | 105 | 55 | 39 | 2 | — | — | — | 5 | 10 | 48 | — | — | 7 | 7 | 3 | 6 | 6 | 15 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | N 6 | N 5 | N 6 | W 12 | — | — | — | — | W 18 | N 4 | SW 15 | — | — | — | — | — | — | S 12 |
— | — | — | 39 | 21 | 11 | 11 | — | — | — | — | 6 | 1 | 8 | — | — | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | WNW 9 | WNW 9 | — | — | — | — | SW 7 | WSW 6 | — | — | N 5 | — | — | SW 3 | W 7 | W 9 | — | — | — | — | — |
516 | 613 | — | — | — | — | 56 | 136 | — | — | 17 | — | — | 2 | 315 | 461 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 162 | 217 | 108 | 19 | 19 | 0 | 13 | 209 | 157 | 19 | 19 | 19 | 8 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 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.










