Surf Forecasts:
Gwithian surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 20 Sep, 10AM (local time) - 5ft (1.5m), 10s period, W swell with glassy winds.
- Most powerful swell: Friday 18 Sep, 10AM (local time) - 6.5ft (2.0m), 13s period, WNW swell with 1,377 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 10AM (local time) - 5ft (1.5m), 10s period with W swell.
Best Forecast Surf Conditions for Gwithian this week:
The surf forecast for Gwithian over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 10AM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.4m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Gwithian in the next 16 days are 2.0m 13s 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 0.1m 13s period and expected on Sunday (Sep 13) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 20th Sep) | 5ft (1.5m) 10s |
| Best Surf | 10AM (Sun 20th Sep) | 5ft (1.5m) 10s |
| Most Powerful | 10AM (Fri 18th Sep) | 6.5ft (2.0m) 13s |
Table - best surf conditions forecast for Gwithian over the next 16 days.
The Lowdown
Right, let’s have a look at the Gwithian stretch for the next couple of weeks. I’ll be straight with you—this isn’t a classic run of Cornish perfection. We’ve got a lot of wind-affected, lumpy surf to wade through before we see any real magic.
The water’s sitting at 64°, which is a touch warmer than usual for this time of year—nothing crazy, but you might get away with a slightly thinner wetsuit on the sunny days.
The first real chance of anything worthwhile doesn’t come until Sunday the 20th. The morning shows a clean, glassy vibe with a 5ft W swell and moderate energy (518). That’s your first standout—clean lines, light winds, and a proper chance to actually enjoy yourself. The afternoon gets a bit cross-shore, but the morning is the pick.
Then Monday the 21st morning is another good one. Offshore winds, 4ft of W swell with a long 13-second period, and clean conditions (587 energy). This is proper point-break territory—the long period will make it line up nicely. This is probably your best window of the whole forecast.
After that, the wheels come off a bit. The swell drops right away, and by the 22nd we’re down to dribble. The 23rd and 24th are tiny—under 2ft—with offshore winds but just no push. The 25th and 26th have some longer period swell (12-16 seconds) but the height is laughable; 1ft to 3ft isn’t going to get you anywhere. The 27th and 28th stay small and weak, with energy readings dropping into double digits (115, 110). Clean, yes, but flat. Not worth paddling out for.
So, the summary: if you want waves, focus on the 20th and the 21st mornings. Beyond that, it’s a waiting game. There’s a lot of “poor surf conditions” in there, and the long-period stuff we do get is too small to do anything with. Keep your board handy, but don’t force it on the flat days.
Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Mon afternoon, min 14°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Very mild (max 17°C on Fri afternoon, min 15°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 10 | W 10 | W 10 | W 9 | W 9 | WSW 6 | W 8 | W 8 | W 9 | WNW 11 | WNW 11 | W 10 | W 7 | WNW 8 | WNW 9 | WNW 13 | W 13 | WNW 12 | W 7 | W 8 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 512 | 434 | 307 | 230 | 181 | 80 | 418 | 439 | 675 | 990 | 698 | 468 | 355 | 449 | 772 | 1377 | 987 | 263 | 286 | 447 | 643 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | on | on | cross-on | cross-on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | on | on |
High Tide | 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 | 10:08AM4.76m | 10:34PM4.42m | 11:03AM4.32m | 11:44PM4.03m | ||||||||
Low Tide | 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 | 4:26PM1.85m | 4:48AM2.11m | 5:31PM2.25m | ||||||||
 |  |  | |  | | | | | | |  | | | | | | | | |  | |
 | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | — | 7:40 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:31 | — | — | 7:29 | — | — | 7:27 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | — | — | — |
Temp °C | 19 | 19 | 19 | 19 | 20 | 18 | 16 | 16 | 16 | 15 | 15 | 16 | 16 | 16 | 15 | 16 | 17 | 17 | 18 | 17 | 15 |
Feels °C | 18 | 17 | 18 | 18 | 19 | 17 | 10 | 10 | 12 | 10 | 10 | 12 | 11 | 10 | 9 | 12 | 13 | 14 | 15 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | W 10 | SW 13 | W 10 | SW 12 | W 9 | W 8 | S 11 | S 11 | S 11 | WNW 11 | WNW 11 | N 6 | N 6 | WNW 9 | S 13 | WNW 13 | W 13 | WNW 12 | WNW 11 | SW 15 | W 10 |
| kJ | 512 | 7 | 307 | 6 | 181 | 49 | 2 | 2 | 2 | 990 | 698 | 10 | 2 | 28 | 3 | 1377 | 987 | 263 | 73 | 9 | 643 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | WNW 12 | — | — | S 11 | S 11 | — | S 13 | N 6 | — | — | SW 12 | N 5 | SW 16 | SW 16 | S 11 | SW 14 |
| kJ | 7 | 7 | 7 | 6 | 6 | 27 | — | — | 2 | 2 | — | 4 | 2 | — | — | 6 | 8 | 10 | 10 | 2 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 14 | SW 12 | — | — | — | — | — | — | — | — | — | S 18 | S 17 | S 12 | S 12 | S 11 | — |
| kJ | — | — | — | — | 4 | 6 | — | — | — | — | — | — | — | — | — | 6 | 6 | 3 | 3 | 2 | — |
Wind waves Height (m) Direction Period (s) | — | W 10 | — | W 9 | — | WSW 6 | W 8 | W 8 | W 9 | N 6 | N 6 | W 10 | W 7 | WNW 8 | WNW 9 | — | — | WSW 6 | W 7 | W 8 | — |
| kJ | — | 434 | — | 230 | — | 80 | 418 | 439 | 675 | 30 | 29 | 468 | 355 | 449 | 772 | — | — | 160 | 286 | 447 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 5 | 5 | 5 | 5 | 5 | 214 | 214 | 115 | 69 | 211 | 211 | 553 | 279 | 279 | 223 | 211 | 223 | 223 | 210 | 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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