Surf Forecasts:
Gwithian surf forecast from 25 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 1PM (local time) - 2ft (0.6m), 10s period, WNW swell with offshore winds.
- Most powerful swell: Monday 31 Aug, 4AM (local time) - 10ft (3.0m), 9s period, W swell with 1,533 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 1PM (local time) - 2ft (0.6m), 10s period with WNW 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 Tuesday (Aug 25) at 1PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Gwithian in the next 16 days are 3.0m 9s and forecast to arrive on Monday (Aug 31) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Thursday (Aug 27) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Tue 25th Aug) | 2ft (0.6m) 10s |
| Best Surf | 1PM (Tue 25th Aug) | 2ft (0.6m) 10s |
| Most Powerful | 4AM (Mon 31st Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Gwithian over the next 16 days.
The Lowdown
Alright, let’s get into it. This stretch here for Gwithian is looking pretty average for the most part, with a couple of promising windows later on that have some real potential.
Right now, we’re kicking off on Tuesday the 25th with a small, clean 2 ft WNW groundswell coming through at 10 seconds. The wind is light and off from the ESE, so conditions are actually quite clean, even if the energy is minimal. The swell energy is weak at just 93 to 110, so there’s not much push. It’s a beginner-friendly day but nothing to get excited about. The water temp is about average for this time of year, so no surprises there.
Wednesday and Thursday are pretty lackluster, with tiny, weak swell dropping down to 1 ft to 2 ft and shorter periods of 8 seconds. Winds are cross-off or light, but there’s just no power in the water. Combined energy slips down as low as 36, so it’s really just a paddle-around kind of week.
Friday the 28th through the weekend gets a bit more size, but the wind shifts onshore and gets messy. By Saturday the 29th, we’re seeing a fresh cross-onshore breeze at 22 mph and 7 ft to 8 ft of wind-affected swell. The energy is moderate to strong at 444 to 1059, but the quality is poor. The period is only 7-9 seconds, and with strong onshore wind, Gwithian turns into a lumpy, choppy mess. If you’re kiting, maybe this is your moment, but for surfing, forget it. The same story continues through to the end of the first week of September, with strong winds and messy conditions, even as the swell fluctuates.
Now, here’s where it gets interesting. On Tuesday the 8th of September, the forecast shows a serious pulse of groundswell arriving. By the afternoon, we’ve got 7 ft of WSW swell with a long period of 14 seconds, combining for very strong energy at 2101. The wind is a light, cross-off breeze from the ENE at just 6 mph, which will keep things clean. For experienced surfers, this is the standout session of the whole run. That long period swell will be lining up nicely at Gwithian, though it can sometimes break a bit straight at a beach break like this. Still, the conditions look excellent.
Then into Wednesday the 9th of September, things get even better for the early birds. Morning brings a glassy, 10 ft swell from the west at 9 seconds. The wind is near zero, swinging into the SSW at just 3 mph, making for glassy conditions. The energy is massive at 2458, but with a short period, it’ll be a heavy, powerful wave. This one is strictly for the experienced crew, as 10 ft is expert territory. If you’ve got the skills, this will be the other top play of the outlook, with clean, powerful surf under that glassy sky.
So, to wrap it up: there’s a long gap of poor conditions from now until the second week of September. The two true standouts are the afternoon of Tuesday the 8th (7 ft, clean, long-period groundswell) and the morning of Wednesday the 9th (10 ft, glassy, huge energy). Keep an eye on those.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Warm (max 22°C on Wed afternoon, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri night. Very mild (max 19°C on Fri morning, min 16°C on Thu night). Winds increasing (light winds from the S on Thu night, strong winds from the W by Sun afternoon). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 10 | WNW 10 | W 9 | W 8 | W 8 | W 8 | W 8 | SSW 8 | SSW 7 | SW 7 | WSW 7 | W 7 | WSW 7 | W 9 | WSW 8 | WSW 7 | WSW 8 | W 9 | W 10 | W 10 | W 10 |
Wave Graph | |||||||||||||||||||||
57 | 75 | 59 | 49 | 31 | 28 | 20 | 179 | 173 | 131 | 217 | 258 | 444 | 1059 | 395 | 319 | 674 | 1367 | 1403 | 1370 | 913 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | on | cross-on | cross-on |
High Tide | 4:22AM4.66m | 4:42PM5.02m | 5:03AM5.05m | 5:20PM5.44m | 5:38AM5.43m | 5:53PM5.82m | 6:10AM5.76m | 6:25PM6.13m | 6:42AM6.01m | 6:57PM6.33m | 7:14AM6.17m | 7:30PM6.41m | 7:48AM6.22m | 8:04PM6.36m | |||||||
Low Tide | 10:40AM1.61m | 11:05PM1.36m | 11:19AM1.21m | 11:42PM0.97m | 11:53AM0.84m | 00:15AM0.63m | 12:26PM0.54m | 00:46AM0.37m | 12:57PM0.34m | 1:18AM0.22m | 1:29PM0.24m | 1:50AM0.20m | 2:02PM0.26m | 2:22AM0.30m | |||||||
6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | |
— | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — | |
mm | — | — | — | — | — | 11 | — | — | — | — | — | 5 | 2 | — | — | 2 | 1 | 1 | — | — | — |
Temp °C | 20 | 20 | 17 | 21 | 22 | 18 | 20 | 19 | 17 | 19 | 19 | 18 | 19 | 19 | 18 | 18 | 18 | 16 | 17 | 17 | 17 |
Feels °C | 17 | 18 | 17 | 19 | 21 | 15 | 17 | 16 | 16 | 17 | 16 | 14 | 14 | 14 | 15 | 12 | 11 | 10 | 10 | 11 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | W 9 | W 8 | W 8 | W 8 | W 8 | W 9 | SSW 7 | WNW 9 | SW 11 | S 11 | S 11 | — | WSW 8 | — | W 12 | — | — | — | S 18 |
57 | 75 | 59 | 49 | 31 | 28 | 20 | 44 | 173 | 27 | 5 | 2 | 2 | — | 395 | — | 3 | — | — | — | 6 | |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 8 | SW 8 | SW 7 | N 4 | SSW 7 | WNW 10 | SW 12 | WNW 9 | SW 12 | — | — | — | — | — | W 13 | — | — | — | — | S 18 |
19 | 35 | 32 | 14 | 3 | 15 | 10 | 6 | 28 | 5 | — | — | — | — | — | 3 | — | — | — | — | 6 | |
Swell 3 Height (m) Direction Period (s) | SSW 13 | NE 5 | NNE 4 | NNW 5 | SSW 7 | S 4 | SW 12 | S 12 | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — |
17 | 6 | 3 | 7 | 5 | 1 | 6 | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ENE 5 | SE 6 | SSE 6 | S 3 | S 4 | E 2 | S 6 | SSW 8 | — | SW 7 | WSW 7 | W 7 | WSW 7 | W 9 | — | WSW 7 | WSW 8 | W 9 | W 10 | W 10 | W 10 |
24 | 8 | 3 | 2 | 2 | 2 | 61 | 179 | — | 131 | 217 | 258 | 444 | 1059 | — | 319 | 674 | 1367 | 1403 | 1370 | 913 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 0 | 0 | 1 | 335 | 191 | 247 | 4 | 0 | 4 | 211 | 5 | 31 | 191 | 5 | 387 | 588 | 214 | 223 | 211 | 5 |
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.











