Surf Forecasts:
Gwithian surf forecast from 11 Sep 2026:
- Most powerful swell: Friday 18 Sep, 10AM (local time) - 5.5ft (1.7m), 12s period, WNW swell with 819 kJ wave energy.
Best Forecast Surf Conditions for Gwithian this week:
The most powerful waves expected at Gwithian in the next 16 days are 1.7m 12s and forecast to arrive on Friday (Sep 18) 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 0.3m 3s period and expected on Tuesday (Sep 15) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Fri 18th Sep) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Gwithian over the next 16 days.
The Lowdown
Gwithian’s been a bit of a letdown lately, and honestly, looking at the whole run, it’s a tough stretch. The first week is pretty much a write-off. We’ve got waves on the charts, but the wind’s all over it, mostly cross and onshore. The water’s still a touch warmer than normal for September, which is nice if you’re just having a paddle, but the surf quality is poor.
The first real chance of something clean doesn’t show up until Saturday the 19th. There’s a light offshore breeze from the south, and the swell direction is still out of the west. It’s small, maybe 4ft, but that’s our first genuine window. The energy is weak (284). It’s a beginner-friendly size, and that light wind will mean it’s clean, but it’s not going to be a day to write home about.
The following Sunday morning, the 20th, sees a bump in size to 4ft with a fresh offshore ESE wind. Still west swell. The energy is moderate (248). It’s clean and surfable, but again, ordinary.
Then we’ve got a few days of small, weak swell before the second week. The standout of the whole period looks like Wednesday the 23rd. It’s still a week away, so we’re talking about a bit of a gamble, but the forecast has some decent west-northwest swell at 5ft with a 13-second period. The energy is strong (799). The wind is forecast to be a moderate offshore from the ESE, which will hold the surface pretty clean. It’s still on the smaller side for a proper standout, but with that longer period, it could actually have some push.
Don’t get too excited about the size. Anything over 5ft is a bit much for beginners, and that Wednesday is right at that line. Good for the experienced crew. The rest of that week is a mix of smaller, weaker westerly swells with lighter winds, but nothing that really stands out.
The final weekend looks pretty sad. The 25th and 26th drop off hard – under 2ft and the energy tanks to single digits (48, 28). That’s a dead stretch. The wind stays onshore and it’s pretty much done.
So, if you’ve got some patience, hold out for the 23rd. It’s the only real highlight, a week out, so take it with a pinch of salt. It looks like the kind of day the points and reefs around here could actually get a bit of juice, with that longer period. If you just want a paddle and don’t mind groveling, the weekend of the 19th-20th is your best bet for clean, small waves.
Rusty
Short Range ForecastLight rain (total 8mm), mostly falling on Sat night. Very mild (max 19°C on Sat afternoon, min 15°C on Fri afternoon). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 20°C on Mon morning, min 14°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | W 9 | W 9 | W 8 | W 8 | W 8 | W 10 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 10 | WNW 10 | WNW 8 | WNW 10 | WNW 11 | WNW 10 | WNW 7 | WNW 8 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 417 | 292 | 156 | 201 | 350 | 708 | 512 | 377 | 246 | 157 | 143 | 129 | 313 | 665 | 385 | 574 | 531 | 511 | 371 | 528 | 460 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on |
High Tide | 6:14PM6.58m | 6:34AM6.39m | 6:51PM6.64m | 7:10AM6.42m | 7:27PM6.53m | 7:45AM6.29m | 8:02PM6.26m | 8:18AM6.02m | 8:36PM5.87m | 8:52AM5.66m | 9:11PM5.40m | 9:28AM5.22m | 9:49PM4.90m | ||||||||
Low Tide | 12:16PM0.13m | 00:39AM-0.05m | 12:53PM0.01m | 1:14AM-0.04m | 1:27PM0.05m | 1:47AM0.13m | 2:01PM0.24m | 2:18AM0.42m | 2:33PM0.56m | 2:49AM0.80m | 3:06PM0.95m | 3:22AM1.23m | 3:42PM1.40m | 3:59AM1.68m | |||||||
 |  |  | | |  | | |  | |  |  | | | | | |  | | | | |
 | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:31 | — |
mm | — | — | — | — | — | 8 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 17 | 16 | 16 | 18 | 19 | 18 | 18 | 19 | 19 | 20 | 20 | 18 | 16 | 16 | 16 | 15 | 15 | 16 | 16 | 15 | 16 |
Feels °C | 15 | 14 | 14 | 14 | 15 | 15 | 18 | 19 | 20 | 19 | 19 | 18 | 12 | 10 | 11 | 12 | 11 | 12 | 12 | 9 | 12 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | W 8 | WNW 13 | S 14 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 10 | SSW 6 | WNW 8 | WNW 10 | WNW 11 | N 6 | — | S 13 | WNW 11 |
| kJ | 417 | 292 | 156 | 201 | 32 | 4 | 512 | 377 | 246 | 157 | 143 | 129 | 313 | 3 | 385 | 574 | 531 | 17 | — | 3 | 145 |
Swell 2 Height (m) Direction Period (s) | — | S 16 | — | WNW 14 | SW 15 | — | SW 13 | SW 13 | S 13 | SW 12 | SW 12 | WNW 12 | S 11 | SW 11 | S 6 | S 11 | N 6 | S 13 | — | — | S 13 |
| kJ | — | 5 | — | 20 | 8 | — | 7 | 7 | 3 | 6 | 6 | 14 | 2 | 5 | 1 | 2 | 53 | 4 | — | — | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 15 | — | — | — | — | — | — | — | SW 12 | — | — | S 11 | — | — | — | — | — | — |
| kJ | — | — | — | 8 | — | — | — | — | — | — | — | 6 | — | — | 2 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 8 | W 10 | — | — | — | — | — | SSE 3 | NNW 3 | WNW 10 | N 5 | NNW 6 | — | WNW 10 | WNW 7 | WNW 8 | WNW 8 |
| kJ | — | — | — | — | 350 | 708 | — | — | — | — | — | 1 | 7 | 665 | 53 | 134 | — | 511 | 371 | 528 | 460 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 69 | 14 | 4 | 5 | 191 | 223 | 5 | 5 | 5 | 5 | 5 | 1 | 168 | 168 | 115 | 211 | 493 | 214 | 214 | 69 | |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Gwithian Surf forecast
The above surf forecast table for Gwithian provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Gwithian can be found by selecting the local surf guide option on the grey menu. Our Gwithian 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 (Gwithian) 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 Gwithian 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.
Gwithian is 6 km (4 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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