Surf Forecasts:
Porth Beach surf forecast from 6 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.4m), 12s period, W swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 4ft (1.2m), 10s period, W swell with 290 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.4m), 12s period with W swell.
Best Forecast Surf Conditions for Porth Beach this week:
The surf forecast for Porth 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 0.4m and 12s period with a secondary swell of 0.3m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porth Beach in the next 16 days are 1.2m 10s and forecast to arrive on Thursday (Aug 13) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 11th Aug) | 1.5ft (0.4m) 12s |
| Best Surf | 10PM (Tue 11th Aug) | 1.5ft (0.4m) 12s |
| Most Powerful | 10AM (Thu 13th Aug) | 4ft (1.2m) 10s |
Table - best surf conditions forecast for Porth Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s happening at Porth Beach.
Honestly, it’s a pretty flat spell ahead. The next week and a half is looking tough for anyone trying to get a proper wave. The swell is tiny and most of the time the wind is either onshore or cross-onshore, ruining what little bump there is. We’ve got a long stretch of poor surf conditions from now until roughly August 12th.
The first real blip of energy shows up on the morning of Wednesday, August 12th. Swell jumps to 4ft from the west, with a period of 10 seconds, and the combined energy hits 225 – that’s moderate wave energy. But the wind is onshore from the northwest, so it’s not going to be clean. It’s messy and not worth paddling out for.
Thursday, August 13th morning offers a bit more size at 4ft from the west, with a period of 10 seconds (energy 290). The wind is light cross-onshore, which leaves a few ripples on the surface. It’s marginal, but maybe one for the hardcore longboarders who don’t mind a bit of bump.
The only real standout window comes on the morning of Friday, August 14th. The swell drops to 3ft from the west, period 8 seconds, but the wind goes glassy – calm, with a slight air. The water is a touch warmer than normal at 66°F. The combined energy is 109, which is weak, but for Porth Beach, that glassy morning is your best shot. The waves will be small and clean, perfect for a beginner session. Just know that this spot can get busy, so expect crowds.
After that, the wind turns back onshore or cross-onshore, and the swell stays small and jumbled through the rest of the forecast. There’s a pulse of 4ft swell from the west-northwest on the 19th and 20th of August, but it’s blown out by strong onshore winds. The wave energy gets up to 341 on the 20th, but it’s not surfable conditions.
So, if you’re after a wave, target that Friday, August 14th morning. It’s the only time the stars line up for a clean, rideable wave. The rest of the run is a write-off.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Sat afternoon, min 15°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Tue afternoon, min 18°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 6 | W 10 | W 9 | W 9 | W 9 | W 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 30 | 17 | 15 | 15 | 15 | 14 | 8 | 15 | 8 | 14 | 14 | 14 | 23 | 22 | 20 | 11 | 114 | 225 | 199 | 190 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross | off | glassy | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | off | off | cross-on | on | on | cross-on |
High Tide | 11:35PM5.36m | 12:10PM5.16m | 00:49AM5.10m | 1:31PM5.06m | 2:14AM5.08m | 2:54PM5.26m | 3:33AM5.35m | 4:05PM5.69m | 4:37AM5.77m | 5:03PM6.19m | 5:30AM6.18m | 5:52PM6.64m | ||||||||
Low Tide | 5:21PM1.47m | 5:56AM1.60m | 6:33PM1.72m | 7:16AM1.78m | 8:03PM1.75m | 8:46AM1.70m | 9:29PM1.47m | 10:02AM1.35m | 10:38PM1.02m | 11:03AM0.90m | 11:34PM0.54m | 11:53AM0.48m | 00:21AM0.17m | |||||||
 |  | | |  |  | | | | | | | | | | | |  | | | |
 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — |
 | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 17 | 16 | 20 | 21 | 18 | 21 | 20 | 18 | 20 | 20 | 21 | 24 | 25 | 19 | 20 | 20 | 20 |
Feels °C | 13 | 15 | 14 | 15 | 15 | 19 | 20 | 16 | 18 | 17 | 16 | 19 | 17 | 21 | 21 | 21 | 20 | 18 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 5 | W 5 | WNW 4 | W 9 | W 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 9 |
| kJ | 30 | 8 | 4 | 4 | 15 | 14 | 8 | 15 | 8 | 14 | 14 | 14 | 23 | 22 | 20 | 11 | 114 | 225 | 199 | 190 |
Swell 2 Height (m) Direction Period (s) | NNW 5 | N 5 | W 9 | W 9 | WNW 4 | NW 11 | WSW 7 | WSW 7 | WSW 6 | WSW 7 | WSW 6 | WNW 4 | WSW 6 | WSW 7 | W 10 | W 9 | W 7 | — | — | — |
| kJ | 7 | 4 | 15 | 15 | 1 | 4 | 5 | 5 | 4 | 4 | 4 | 3 | 4 | 4 | 8 | 6 | 9 | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | N 5 | SW 12 | SW 11 | NW 5 | W 9 | W 9 | W 8 | SW 12 | W 3 | WSW 6 | W 13 | W 4 | SW 6 | SW 6 | SW 6 | — | — | — |
| kJ | 17 | 17 | 2 | 6 | 5 | 1 | 6 | 2 | 1 | 6 | 1 | 4 | 3 | 1 | 2 | 2 | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 3 | NNW 3 | — | WNW 5 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 5 | 2 | — | 9 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 418 | 239 | 403 | 393 | 235 | 233 | 58 | 43 | 405 | 61 | 43 | 45 | 61 | 43 | 58 | 218 | 5 | 61 | 2 | 2 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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Information about the Porth Beach Surf forecast
The above surf forecast table for Porth Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porth Beach can be found by selecting the local surf guide option on the grey menu. Our Porth 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 (Porth 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 Porth 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.
Are you planning a holiday in North Cornwall? If you are looking for accommodation near Porth Beach, camping, hotels and holiday cottages in North Cornwall, consider staying in Newquay which is 3 km (2 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Padstow which is 16 km (10 miles) away, Truro, Saint Austell and Bodmin.
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