Surf Forecasts:
Portreath Beach surf forecast from 19 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 1AM (local time) - 5ft (1.5m), 9s period, W swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 1PM (local time) - 7.5ft (2.3m), 9s period, WNW swell with 845 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 1AM (local time) - 5ft (1.5m), 9s 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 (Aug 26) at 1AM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.1m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Portreath Beach in the next 16 days are 2.3m 9s and forecast to arrive on Thursday (Aug 20) 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 0.8m 4s period and expected on Tuesday (Aug 25) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 26th Aug) | 5ft (1.5m) 9s |
| Best Surf | 1AM (Wed 26th Aug) | 5ft (1.5m) 9s |
| Most Powerful | 1PM (Thu 20th Aug) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright, let’s get into it. I’m looking at the 16-day window and honestly, it’s a real tough stretch for Portreath Beach. The whole run is basically a write-off for decent surf. There’s a big gap of nothing worthwhile from today all the way through, with every single session coming back as “poor surf conditions.” Nothing scores above a zero. That’s a long blank spell.
The water temperature is sitting at 64°F with an anomaly of 2°F, so it’s a touch warmer than average for this time of year. Nothing wild, but noticeable.
Now, if you’re desperate and just want to get wet, the only time the swell even gets close to interesting is around the 31st of August. Early Monday morning, we’ve got a 10 ft W swell with a 10-second period, and the combined energy is a massive 1539. That’s some serious power. But here’s the catch – the wind is straight onshore from the NW at 19 mph, making it a lumpy mess. It’s also way too big for beginners and only for the experts. Later that afternoon, it drops to 8 ft but still onshore junk. The same goes for the 1st of September with a 8 ft W swell, but again, cross-onshore wind at 19 mph. It’s all chop and no shape.
The setup at Portreath Beach is a beach break, so with that much swell, strong onshore wind, and poor surf quality, this is honestly looking more interesting for kite surfing than paddle surfing. The wind is too messy for clean waves.
Beyond that, the surf stays tiny. From the 24th, we get a few clean mornings with cross-offshore easterly winds, but the swell is only 1.0 ft and weak energy (19). It’s clean but flat. Same story on the 28th and 29th with a bit more size (4 ft to 4 ft) and clean conditions, but the period is short (5 to 7 seconds) and the energy is weak (around 142 to 150). It’s just not worth the effort.
Honestly, this is a lean run. The forecasts can change, but right now, there’s no standout day. If you’ve got to go, wait for the 31st August and be ready for a messy, expert-only session. Otherwise, keep the board in the car.
Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Fri morning. Very mild (max 19°C on Wed morning, min 14°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Mon morning, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 9 | W 6 | W 8 | W 9 | WNW 9 | W 10 | W 8 | WNW 8 | SW 16 | N 6 | N 6 | N 5 | SW 14 | SW 14 | SW 14 | W 9 | W 9 | W 8 | WNW 10 | WNW 10 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 266 | 176 | 565 | 794 | 773 | 405 | 169 | 119 | 39 | 126 | 75 | 41 | 32 | 32 | 32 | 14 | 14 | 12 | 20 | 141 | 363 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-off | cross-off | cross-on | on | on | glassy |
High Tide | 10:08AM5.28m | 10:29PM5.07m | 10:52AM4.83m | 11:20PM4.59m | 11:51AM4.44m | 00:32AM4.24m | 1:16PM4.23m | 2:06AM4.17m | 2:47PM4.35m | 3:25AM4.40m | 3:52PM4.70m | 4:18AM4.77m | 4:39PM5.13m | ||||||||
Low Tide | 4:23PM1.44m | 4:45AM1.69m | 5:10PM1.88m | 5:37AM2.10m | 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 | ||||||||
 | |  |  | | | | |  | | | | | | |  | |  | | | | |
 | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — |
 | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — |
mm | — | — | 2 | 2 | 1 | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 17 | 17 | 17 | 15 | 15 | 15 | 15 | 17 | 17 | 17 | 18 | 18 | 17 | 19 | 19 | 18 | 19 | 18 | 17 |
Feels °C | 14 | 14 | 13 | 12 | 12 | 13 | 12 | 10 | 12 | 13 | 13 | 14 | 13 | 13 | 15 | 14 | 15 | 16 | 17 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SW 15 | SSW 14 | WNW 9 | W 10 | W 8 | WNW 8 | WNW 6 | W 10 | WNW 6 | W 9 | W 9 | SW 14 | SW 14 | N 4 | W 9 | W 8 | WNW 10 | WNW 10 | W 9 |
| kJ | 24 | 24 | 36 | 21 | 773 | 405 | 169 | 119 | 26 | 45 | 13 | 14 | 14 | 32 | 32 | 2 | 14 | 12 | 20 | 141 | 363 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 6 | — | — | SW 14 | N 5 | SSW 13 | SSW 13 | W 9 | SSW 15 | W 9 | SW 15 | SW 14 | W 9 | W 9 | W 9 | SSW 14 | ESE 6 | W 8 | SSW 13 | SW 13 |
| kJ | 24 | 3 | — | — | 33 | 20 | 17 | 17 | 24 | 21 | 25 | 54 | 32 | 13 | 6 | 14 | 18 | 4 | 12 | 17 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 14 | SSW 16 | SSW 16 | SW 16 | W 7 | SSW 15 | WNW 6 | SSW 14 | WNW 6 | SE 5 | SSW 14 | ESE 5 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | — | — | — | — | — | 19 | 25 | 25 | 39 | 1 | 21 | 3 | 39 | 3 | 1 | 19 | 2 | 17 | 17 | 17 | 16 |
Wind waves Height (m) Direction Period (s) | WNW 9 | W 6 | W 8 | W 9 | — | — | N 6 | N 5 | N 5 | N 6 | N 6 | N 5 | N 5 | N 4 | N 4 | E 4 | — | N 3 | — | SSW 2 | — |
| kJ | 266 | 176 | 565 | 794 | — | — | 74 | 35 | 30 | 126 | 75 | 41 | 22 | 14 | 8 | 9 | — | 2 | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 217 | 211 | 553 | 168 | 209 | 19 | 25 | 86 | 25 | 76 | 19 | 19 | 19 | 385 | 19 | 297 | 414 | 257 | 36 | 190 | 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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