Surf Forecasts:
Portreath Beach surf forecast from 10 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.5m), 11s period, W swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 4ft (1.2m), 11s period, W swell with 317 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.5m), 11s 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 Tuesday (Aug 11) at 10PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.3m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Portreath Beach in the next 16 days are 1.2m 11s and forecast to arrive on Thursday (Aug 13) 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 6s period and expected on Wednesday (Aug 12) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 11th Aug) | 1.5ft (0.5m) 11s |
| Best Surf | 10PM (Tue 11th Aug) | 1.5ft (0.5m) 11s |
| Most Powerful | 10AM (Thu 13th Aug) | 4ft (1.2m) 11s |
Table - best surf conditions forecast for Portreath Beach over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let’s break down the next couple of weeks for Portreath Beach.
To be honest, we’re looking at a flat start. The first few days are a total bust. Monday the 10th and Tuesday the 11th are tiny and blown out. You’re wasting your time. The action doesn’t start until the 12th.
Wednesday the 12th is your first real window. The morning pushes a 3ft swell out of the west with a 10-second period, and the wind is a light, clean cross-off breeze. The energy is moderate at 126. The afternoon is similar, with a slightly smaller 3ft swell and still clean. It’s not a classic, but it’s the first proper surf and it’s rideable.
Thursday the 13th serves up a bigger 4ft groundswell from the west, with a solid 11-second period and a strong 317 energy reading. But the onshore wind is going to tear it to shreds. The same story plays out through the 15th, 16th, and 17th—decent swell energy, but the wind is just ruining it. It’s a real shame.
There’s a small reprieve on Thursday the 20th. The morning has a clean 2ft west swell with a 10-second period and a moderate offshore breeze from the ESE. The energy is a bit weak at 88, but the wind will be off, making it clean and lined up. The afternoon drops off, but the morning is your best bet for a tidy session.
Then we get to the big one. The 23rd of August is a monster. A 10ft swell from the WNW is forecast, with a massive energy reading of 1531. That’s a lot of power. But the wind is cross-onshore, making it a dangerous, messy beast. That’s strictly for experts, and even then it’s a dicey one. The 25th of August brings a very long-period 16-second groundswell from the west, with a strong energy of 420. The potential for a long, throaty wave is there, but the wind is onshore, so it’ll be a choppy mess.
The standout here is Wednesday the 12th. It’s the first clean surf of the run, with a 3ft to 3ft west swell and a light, clean breeze. It’s not huge, but it’s the only window where you’ll get clean, fun waves without a fight. The water is a touch warmer than normal at 65°, so you’ll be comfortable in a spring suit.
Overall, watch for Wednesday the 12th for a gentle paddle, and the morning of the 20th for a clean, small session. The rest is a write-off from the wind or just too big to handle. Portreath can get busy, but with this forecast, it might be quiet.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu afternoon, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 5 | WNW 8 | W 8 | WNW 8 | W 13 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | WNW 8 | W 8 | W 7 | W 7 | N 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 36 | 22 | 33 | 19 | 12 | 85 | 125 | 139 | 180 | 317 | 277 | 181 | 126 | 173 | 161 | 138 | 96 | 57 | 25 | 26 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | off | off | cross-off | cross-off | cross-off | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 4:00PM5.54m | 4:32AM5.62m | 4:57PM6.03m | 5:25AM6.02m | 5:47PM6.47m | 6:11AM6.33m | 6:31PM6.76m | 6:54AM6.50m | 7:13PM6.86m | 7:34AM6.51m | 7:53PM6.76m | 8:13AM6.37m | 8:31PM6.49m | ||||||||
Low Tide | 10:34PM0.96m | 10:59AM0.85m | 11:30PM0.50m | 11:49AM0.44m | 00:17AM0.14m | 12:34PM0.15m | 1:00AM-0.06m | 1:15PM0.01m | 1:40AM-0.08m | 1:54PM0.05m | 2:18AM0.07m | 2:31PM0.25m | 2:54AM0.38m | ||||||||
 | |  | | | | | | | | | | | |  |  | | | | | | |
 | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 19 | 23 | 23 | 20 | 26 | 27 | 22 | 20 | 21 | 19 | 18 | 17 | 17 | 17 | 16 | 16 | 18 | 17 | 16 |
Feels °C | 15 | 15 | 18 | 20 | 19 | 18 | 23 | 25 | 21 | 18 | 21 | 19 | 15 | 14 | 16 | 13 | 12 | 13 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 5 | WNW 5 | W 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | WNW 8 | W 8 | W 7 | W 7 | W 7 |
| kJ | 36 | 10 | 33 | 19 | 11 | 85 | 125 | 139 | 180 | 317 | 277 | 181 | 126 | 173 | 161 | 138 | 96 | 57 | 25 | 26 | 9 |
Swell 2 Height (m) Direction Period (s) | SW 6 | WNW 8 | SW 6 | SW 6 | W 9 | WNW 7 | ESE 5 | ESE 6 | SE 5 | E 5 | E 6 | E 5 | S 13 | S 13 | SW 13 | — | — | SW 12 | W 8 | SW 18 | WNW 7 |
| kJ | 14 | 22 | 7 | 6 | 7 | 10 | 2 | 6 | 1 | 2 | 15 | 2 | 3 | 3 | 7 | — | — | 6 | 10 | 13 | 9 |
Swell 3 Height (m) Direction Period (s) | WNW 8 | SW 6 | SW 13 | N 4 | W 13 | SW 6 | SW 6 | — | — | — | — | S 11 | S 13 | S 11 | S 10 | — | — | S 20 | S 12 | S 18 | SW 18 |
| kJ | 24 | 15 | 7 | 1 | 12 | 1 | 1 | — | — | — | — | 2 | 3 | 2 | 2 | — | — | 7 | 3 | 7 | 12 |
Wind waves Height (m) Direction Period (s) | — | N 4 | N 4 | SE 2 | SE 3 | SE 5 | E 5 | E 6 | — | — | NW 3 | WNW 3 | WNW 6 | — | N 4 | N 5 | N 5 | N 4 | N 4 | N 4 | N 4 |
| kJ | — | 9 | 5 | 1 | 3 | 7 | 35 | 64 | — | — | 2 | 5 | 69 | — | 5 | 23 | 16 | 12 | 5 | 9 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 19 | 19 | 19 | 227 | 402 | 0 | 0 | 0 | 19 | 19 | 217 | 86 | 19 | 278 | 19 | 170 | 281 | 176 | 19 | 400 | 402 |
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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