Surf Forecasts:
Portreath Beach surf forecast from 16 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 10AM (local time) - 7ft (2.2m), 9s period, WNW swell with 741 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 2.2m 9s and forecast to arrive on Thursday (Aug 20) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Aug 23) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Thu 20th Aug) | 7ft (2.2m) 9s |
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 the next couple of weeks are holding for us.
Straight up, we’ve got a pretty grim run ahead. For a solid 12 days, from now through to early on the 27th of August, there's not a single moment worth paddling out at Portreath Beach (Cornwall). It’s a proper flat spell, and when there is a little bit of swell, it’s either tiny, onshore, or messy. The water’s sitting at 66°F, which is a touch warmer than your usual for this time of year – nice for a swim, but it doesn’t help the surf.
The first real glimmer of hope doesn’t arrive until Friday morning, the 28th of August. That morning, the stars almost align. We’ve got a clean 6ft swell rolling in from the WSW with a 9-second period. The wind is a light, cross-offshore breeze from the SSW, which should keep things looking sharp. The combined wave energy is solid at 541 (moderate). This is the standout window for the whole forecast, hands down. It’s not perfect – the afternoon goes cross-on and drops off a bit – but that morning session is the one to aim for. It’s still a fair way out, so keep an eye on it, but this is as good as it gets.
After that, Saturday the 29th looks punchy with 6ft WNW groundswell and a very long 12-second period. The energy is high, hitting 946, but the wind is onshore from the NW, so it’ll be a choppy, blown-out mess. Not one for the logs, and honestly, with that much power and onshore wind, this setup looks more interesting for kite surfing than a paddle session. Beginners, steer well clear of that size.
The final few days of the month drop right back off, with smaller, lumpy, cross-shore conditions. There’s nothing else that really gets the heart pumping.
So to wrap it up: don't bother for the next 12 days. Save your energy, wax up that board, and point your compass at Friday the 28th for the best chance of a clean wave.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun night, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Wed afternoon. Very mild (max 18°C on Wed morning, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Wed afternoon, light winds from the N by Fri night). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | WNW 7 | WNW 7 | W 7 | WNW 6 | WNW 8 | W 7 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | WNW 7 | W 8 | WNW 9 | WNW 9 | WNW 9 | W 8 | WNW 8 | W 8 | W 10 | W 10 | N 6 |
Wave Graph | |||||||||||||||||||||
16 | 44 | 12 | 60 | 123 | 74 | 95 | 104 | 143 | 206 | 373 | 736 | 741 | 616 | 346 | 124 | 79 | 50 | 76 | 48 | 39 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross |
High Tide | 8:31PM6.49m | 8:51AM6.09m | 9:09PM6.08m | 9:28AM5.72m | 9:48PM5.59m | 10:08AM5.28m | 10:29PM5.07m | 10:52AM4.83m | 11:20PM4.59m | 11:51AM4.44m | 00:32AM4.24m | 1:16PM4.23m | 2:06AM4.17m | ||||||||
Low Tide | 2:31PM0.25m | 2:54AM0.38m | 3:07PM0.57m | 3:29AM0.78m | 3:44PM0.99m | 4:05AM1.23m | 4:23PM1.44m | 4:45AM1.69m | 5:10PM1.88m | 5:37AM2.10m | 6:16PM2.23m | 6:55AM2.37m | 7:50PM2.36m | ||||||||
6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 18 | 17 | 16 | 15 | 15 | 16 | 15 | 16 |
Feels °C | 14 | 16 | 18 | 17 | 17 | 18 | 17 | 15 | 15 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 10 | 12 | 11 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | W 7 | W 7 | WNW 9 | SW 18 | N 4 | W 8 | SW 17 | SSW 17 | W 9 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SSW 14 | W 8 | WNW 8 | W 8 | N 5 | W 10 | N 6 |
16 | 26 | 8 | 43 | 12 | 1 | 11 | 11 | 29 | 45 | 24 | 23 | 21 | 33 | 19 | 124 | 79 | 50 | 20 | 48 | 39 | |
Swell 2 Height (m) Direction Period (s) | WSW 8 | N 4 | — | SW 18 | — | SW 16 | SSW 17 | — | — | NW 11 | — | — | SSW 14 | — | SSW 14 | SSW 13 | SSW 13 | SW 16 | W 10 | SSW 15 | W 9 |
11 | 3 | — | 12 | — | 10 | 28 | — | — | 32 | — | — | 21 | — | 19 | 17 | 17 | 39 | 76 | 21 | 26 | |
Swell 3 Height (m) Direction Period (s) | S 12 | SW 18 | SW 18 | — | — | — | — | — | — | SSW 16 | — | — | — | — | — | SSW 16 | SSW 16 | W 11 | SSW 15 | SW 12 | SW 15 |
3 | 13 | 12 | — | — | — | — | — | — | 24 | — | — | — | — | — | 25 | 25 | 21 | 21 | 6 | 54 | |
Wind waves Height (m) Direction Period (s) | N 4 | WNW 7 | W 4 | WNW 6 | WNW 8 | W 7 | WNW 6 | WNW 6 | WNW 6 | WNW 7 | WNW 7 | W 8 | WNW 9 | WNW 9 | WNW 9 | N 5 | N 5 | N 5 | — | N 5 | — |
9 | 44 | 7 | 60 | 123 | 74 | 95 | 104 | 143 | 206 | 373 | 736 | 741 | 616 | 346 | 43 | 26 | 12 | — | 36 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 248 | 329 | 249 | 217 | 211 | 281 | 251 | 1145 | 285 | 557 | 211 | 607 | 162 | 217 | 19 | 217 | 217 | 19 | 264 | 269 | 244 |
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.











