
Surf Forecasts:
Porthtowan surf forecast from 22 Jul 2026:
- Best quality surf: Thursday 23 Jul, 10AM (local time) - 3ft (0.9m), 6s period, N swell with glassy winds.
- Most powerful swell: Sunday 26 Jul, 7PM (local time) - 5ft (1.6m), 7s period, WNW swell with 258 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 10AM (local time) - 3ft (0.9m), 6s period with N 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 Thursday (Jul 23) at 10AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porthtowan in the next 16 days are 1.6m 7s and forecast to arrive on Sunday (Jul 26) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 18s period and expected on Saturday (Jul 25) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 23rd Jul) | 3ft (0.9m) 6s |
| Best Surf | 10AM (Thu 23rd Jul) | 3ft (0.9m) 6s |
| Most Powerful | 7PM (Sun 26th Jul) | 5ft (1.6m) 7s |
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 cooking for Porthtowan over the next couple of weeks.
Right off the bat, I gotta be honest with you – it’s a slow start. We’re looking at a pretty grim stretch of days with hardly anything worth getting wet for. The first real chance of a paddle won’t be until Thursday the 23rd, and even then it’s nothing to write home about. The combined swell energy is weak (78), and while the morning turns glassy with a light offshore breeze, that swell is a tiny 3ft from the north with a short period of 6 seconds. It’s surfable, but very ordinary. That window is short-lived though, because by the afternoon the wind swings cross-onshore and the surf drops off.
We then hit a proper dry spell. Friday the 24th through to the end of the month is mostly poor. The wind is all over the place, mostly cross-onshore or onshore, and the waves are either tiny or just messy. The swell energy stays low, barely cracking triple digits, and the period is short. It’s just not happening. There’s a brief moment on the 31st of July where the swell picks up a bit to 6ft from the west (period 8s) and the energy hits 571, but the wind is cross-shore and the conditions are poor. Not worth it.
Now, here’s the one that might get your heart pumping. If you’re an experienced surfer and you’re willing to wait, the morning of Saturday the 1st of August is the standout. The swell is solid 8ft out of the west with a period of 10 seconds – that’s proper groundswell energy. The combined energy jumps to 958, which is a strong pulse. The wind is a clean cross-offshore from the SSW, meaning the waves should be holding up nicely. However, this is big for a beginner – over 8ft is expert territory, so this one is for the crew who know what they’re doing. The water temp is about average for the time of year, nothing unusual to report there.
After that, the swell backs off through Sunday and into the new week, with the wind turning onshore again on Sunday the 2nd. There’s a tiny, clean window on the morning of Monday the 3rd of August with a 2ft west swell and light offshore wind, but it’s small and weak. Then it’s back to small, choppy junk for the rest of the run.
So, to sum it up: the first proper surf is a very ordinary, glassy morning on the 23rd. The real highlight is the morning of the 1st of August for the experienced crew. The rest is a lot of waiting. Crowds are likely at Porthtowan when it’s good, so expect company on that Saturday morning.
Stay safe, keep an eye on the sky, and don’t force it.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu morning, min 14°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon morning, min 16°C on Sat night). Winds decreasing (fresh winds from the WNW on Sat afternoon, light winds from the NNW by Mon morning). | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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) | N 5 | N 5 | N 6 | N 6 | N 6 | N 5 | N 5 | W 8 | W 8 | WNW 8 | WNW 4 | WNW 6 | WNW 7 | WNW 7 | WNW 8 | WNW 6 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
Wave Graph | |||||||||||||||||||||
53 | 51 | 52 | 56 | 30 | 19 | 7 | 7 | 6 | 14 | 36 | 170 | 168 | 189 | 184 | 68 | 44 | 103 | 43 | 99 | 106 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | on | cross-on | on | glassy | on | cross-on | on |
High Tide | 11:50AM4.83m | 00:18AM4.74m | 12:52PM4.59m | 1:26AM4.50m | 2:03PM4.50m | 2:39AM4.47m | 3:12PM4.61m | 3:43AM4.63m | 4:10PM4.85m | 4:35AM4.88m | 4:57PM5.16m | 5:18AM5.17m | 5:37PM5.49m | ||||||||
Low Tide | 5:45AM1.62m | 6:09PM1.82m | 6:41AM1.93m | 7:14PM2.05m | 7:50AM2.10m | 8:30PM2.11m | 9:03AM2.07m | 9:40PM1.97m | 10:06AM1.88m | 10:37PM1.71m | 10:56AM1.59m | 11:22PM1.41m | 11:37AM1.29m | 00:02AM1.11m | |||||||
5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | |
— | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:15 | — | — | 9:14 | — | — | 9:12 | — | — | 9:10 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 17 | 22 | 22 | 19 | 21 | 20 | 18 | 19 | 18 | 18 | 16 | 18 | 18 | 22 | 21 | 18 | 22 | 21 | 17 |
Feels °C | 13 | 12 | 15 | 21 | 21 | 19 | 18 | 17 | 18 | 15 | 13 | 16 | 12 | 14 | 16 | 20 | 19 | 18 | 20 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | W 9 | N 6 | N 6 | N 5 | N 5 | W 8 | W 8 | WNW 8 | SW 11 | SW 11 | WNW 7 | SW 16 | WNW 8 | WNW 6 | WNW 9 | WNW 9 | W 6 | W 12 | SW 14 |
16 | 15 | 14 | 56 | 30 | 19 | 7 | 5 | 5 | 14 | 5 | 5 | 168 | 11 | 184 | 68 | 44 | 103 | 24 | 3 | 8 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | W 9 | W 9 | W 8 | W 8 | SW 13 | NW 10 | SW 12 | S 18 | — | SW 11 | S 12 | N 4 | WNW 9 | — | — | WNW 9 | S 14 | S 14 |
10 | 9 | 8 | 14 | 13 | 6 | 5 | 7 | 4 | 6 | 6 | — | 5 | 3 | 3 | 59 | — | — | 43 | 4 | 4 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 15 | SW 14 | SW 13 | SW 13 | SE 4 | SW 12 | — | — | — | S 16 | — | — | N 4 | SW 16 | S 14 | S 12 | — | — |
— | — | — | 8 | 8 | 7 | 7 | 1 | 6 | — | — | — | 5 | — | — | 1 | 10 | 4 | 3 | — | — | |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 6 | — | — | — | — | N 4 | NNW 3 | NW 4 | WNW 4 | WNW 6 | — | WNW 7 | — | — | W 6 | — | — | WNW 9 | WNW 9 |
53 | 51 | 52 | — | — | — | — | 4 | 3 | 7 | 36 | 170 | — | 189 | — | — | 32 | — | — | 99 | 106 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 396 | 737 | 394 | 0 | 38 | 521 | 416 | 749 | 521 | 403 | 392 | 742 | 218 | 218 | 23 | 10 | 23 | 0 | 22 | 23 | 23 |
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.










