Surf Forecasts:
Porthtowan surf forecast from 28 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 7AM (local time) - 2ft (0.6m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 30 Jul, 7AM (local time) - 5ft (1.5m), 6s period, WNW swell with 160 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 7AM (local time) - 2ft (0.6m), 9s period with WNW swell.
Best Forecast Surf Conditions for Porthtowan this week:
The surf forecast for Porthtowan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 28) at 7AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.7m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Porthtowan in the next 16 days are 1.5m 6s and forecast to arrive on Thursday (Jul 30) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Aug 03) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 28th Jul) | 2ft (0.6m) 9s |
| Best Surf | 7AM (Tue 28th Jul) | 2ft (0.6m) 9s |
| Most Powerful | 7AM (Thu 30th Jul) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Porthtowan over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's coming down the line for us.
Right now, it's a bit of a slow start. The next few days are looking pretty ordinary, to be honest. We've got a little pulse of swell on Tuesday the 28th of July, with Porthtowan seeing some 3ft waves from the WNW. The wind is a light cross-off, keeping things clean, but the energy is only moderate (110). It's rideable, but nothing to write home about. Unfortunately, that's about as good as it gets for a while.
From Wednesday the 29th right through to Sunday the 9th of August, we're looking at a real dry spell. There's a solid week and a half of mostly poor surf conditions, with small, weak swell and onshore or cross-onshore winds messing things up. There's a brief moment on Monday the 3rd of August with a clean offshore wind, but the swell is tiny at 2ft, so it's not really worth the paddle.
Now, things start to look a little more exciting towards the end of the run. On Monday the 10th of August, the energy picks up. We've got a clean 3ft to 3ft swell from the W and WSW, with a moderate cross-off wind. The combined energy is moderate (138), and it's clean. It's still not huge, but it's a definite improvement.
The standout, however, is shaping up for Tuesday the 11th of August. The morning sees a bump in size to 4ft from the SW with moderate energy (214), and it's clean. But it's the afternoon that really gets the blood pumping. We're looking at a solid 7ft swell from the SW, with a combined energy of 806 - that's strong wave energy. It's going to be a powerful, punchy wave. The wind is a clean cross-off, so it should be good. Just a heads up, that size is for experienced surfers only. The period is 8 seconds, so it's a bit short period, but with that much energy, it'll be fun.
Wednesday the 12th of August sees a bit of a drop-off, with a 8ft swell from the WSW but onshore winds from the NW, so it'll be a messy one.
So, the pick of the whole 16-day window is definitely Tuesday the 11th of August in the afternoon at Porthtowan. It’s the only day with real size and punch. The Monday before is a decent warm-up, but that Tuesday afternoon is the one to circle on the calendar. Remember, it's a long way out, so things could shift, but that's the best bet we've got.
Stay frothy,
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Tue morning, min 16°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sun morning, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | |||||||||||||||
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 9 | WNW 9 | WNW 8 | WNW 8 | W 8 | WNW 6 | WNW 6 | WNW 8 | WNW 6 | WNW 7 | W 11 | W 9 | W 9 | W 8 | W 8 | W 9 | WSW 8 | W 8 | WSW 8 | N 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 110 | 103 | 79 | 72 | 73 | 127 | 121 | 46 | 81 | 34 | 18 | 20 | 38 | 38 | 33 | 22 | 40 | 22 | 36 | 28 | 75 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | on | on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross | off | cross | cross |
High Tide | 5:18AM5.17m | 5:37PM5.49m | 5:56AM5.44m | 6:14PM5.78m | 6:32AM5.67m | 6:48PM6.01m | 7:05AM5.84m | 7:22PM6.17m | 7:38AM5.94m | 7:55PM6.23m | 8:12AM5.97m | 8:29PM6.20m | 8:47AM5.91m | 9:05PM6.07m | |||||||
Low Tide | 11:37AM1.29m | 00:02AM1.11m | 12:14PM1.00m | 00:37AM0.86m | 12:49PM0.78m | 1:12AM0.67m | 1:22PM0.63m | 1:44AM0.57m | 1:55PM0.57m | 2:17AM0.54m | 2:27PM0.60m | 2:50AM0.60m | 3:02PM0.71m | 3:25AM0.75m | |||||||
 |  |  | | |  | | | | | | | | | | | | | |  |  | |
 | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — |
 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:05 | — | — | 9:02 | — | — | 9:01 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 22 | 22 | 18 | 20 | 20 | 17 | 17 | 18 | 16 | 17 | 17 | 16 | 16 | 16 | 15 | 19 | 19 | 17 | 22 | 21 | 17 |
Feels °C | 22 | 22 | 19 | 18 | 17 | 16 | 13 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 15 | 15 | 15 | 20 | 20 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | W 9 | WNW 9 | WNW 8 | WNW 8 | W 10 | WNW 6 | W 8 | — | WNW 6 | W 5 | WNW 7 | NW 5 | W 9 | W 8 | W 8 | W 9 | WSW 8 | W 8 | WSW 8 | WSW 8 |
| kJ | 110 | 103 | 79 | 72 | 73 | 16 | 121 | 29 | — | 34 | 14 | 15 | 26 | 38 | 33 | 22 | 40 | 22 | 36 | 28 | 28 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 14 | SW 14 | S 13 | S 6 | S 6 | S 13 | N 4 | S 11 | WNW 8 | WNW 7 | W 11 | W 9 | NW 7 | NW 6 | NW 4 | WNW 5 | W 10 | ESE 4 | ESE 6 | ESE 6 |
| kJ | 3 | 4 | 8 | 3 | 1 | 1 | 3 | 3 | 2 | 19 | 18 | 20 | 38 | 2 | 2 | 5 | 4 | 8 | 2 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | S 12 | — | — | — | S 13 | S 13 | — | S 13 | — | W 12 | W 12 | S 12 | — | — | — | N 3 | E 5 | NW 4 | — | NNW 4 | — |
| kJ | 3 | — | — | — | 3 | 3 | — | 3 | — | 3 | 3 | 3 | — | — | — | 1 | 5 | 1 | — | 2 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 2 | W 8 | — | WNW 6 | WNW 8 | N 4 | N 4 | N 4 | — | NW 4 | NNW 4 | ENE 4 | N 4 | N 4 | N 4 | N 4 | N 6 |
| kJ | — | — | — | — | 1 | 127 | — | 46 | 81 | 2 | 3 | 1 | — | 12 | 7 | 2 | 8 | 18 | 9 | 22 | 75 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 18 | 210 | 218 | 747 | 258 | 23 | 22 | 262 | 505 | 281 | 415 | 236 | 38 | 22 | 24 | 391 | 191 | 4 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Porthtowan Surf forecast
The above surf forecast table for Porthtowan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porthtowan can be found by selecting the local surf guide option on the grey menu. Our Porthtowan 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 (Porthtowan) 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 Porthtowan 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.
Porthtowan is 8 km (5 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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