Surf Forecasts:
Gwithian surf forecast from 21 Aug 2026:
- Best quality surf: Saturday 22 Aug, 4AM (local time) - 2.5ft (0.7m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 4AM (local time) - 8ft (2.5m), 7s period, W swell with 800 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 4AM (local time) - 2.5ft (0.7m), 8s 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 Saturday (Aug 22) at 4AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.9m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Gwithian in the next 16 days are 2.5m 7s and forecast to arrive on Thursday (Aug 27) 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 2.0m 7s period and expected on Friday (Aug 28) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 22nd Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 4AM (Sat 22nd Aug) | 2.5ft (0.7m) 8s |
| Most Powerful | 4AM (Thu 27th Aug) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Gwithian over the next 16 days.
The Lowdown
Alright, let’s talk Gwithian in proper units.
This is a sparse stretch ahead. Over the next 16 days, the first surf worth a look lands on Saturday the 22nd of August, and even then it’s tiny. Forget Friday the 21st – onshore wind has it all chopped and ugly.
The one bright spot, and it’s a real gem, is Saturday the 5th of September. We get about 3ft of west swell, and the afternoon goes glassy – zero wind. That’s about as clean as it gets. The water temp is around 64°F at the start, about average for the season. That glassy session is the best of the whole run. Gwithian can get busy, but with those conditions, it’ll be worth sharing the lineup.
Before that, the first recommendation is Saturday the 22nd morning – a small 2ft west swell with a clean cross-off breeze from the east. Combined energy is light at 136. It’s rideable but nothing special. That’s the highlight of the first week, and that says enough.
Sunday the 23rd is flat. Monday the 24th has offshore wind but the swell drops to 1ft – clean but unrideable.
The end of August brings some size, but the wind turns ugly. Wednesday the 26th afternoon has 6ft from the SSW with a short 7-second period, but clean cross-off wind. Combined energy is moderate at 286. Might be okay, but the shape won’t be great. By Thursday the 27th it’s lumpy with cross-on wind. Friday the 28th hits 8ft but with strong onshore wind – a blown-out mess, best left for the kite crowd.
Second week is less certain, but that Saturday the 5th of September glassy session is the one to wait for. Sunday the 31st shows 8ft with cross-shore wind and moderate energy at 699, but only marginal due to tide or conditions.
Bottom line: if you want clean waves, aim for Saturday the 5th of September afternoon. Everything else is a compromise.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun afternoon, min 15°C on Fri afternoon). Winds increasing (light winds from the ENE on Fri night, strong winds from the E by Mon morning). | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Thu morning. Warm (max 21°C on Tue morning, min 15°C on Wed night). Mainly near gales. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 8 | SW 16 | W 10 | W 9 | SW 15 | SW 14 | WSW 12 | SW 14 | SW 14 | SW 13 | SW 9 | WNW 10 | W 10 | SSW 8 | SSW 7 | SW 7 | SSW 6 | WNW 6 | W 7 | WNW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 112 | 39 | 45 | 25 | 54 | 51 | 55 | 38 | 31 | 27 | 17 | 34 | 48 | 43 | 207 | 139 | 212 | 265 | 245 | 175 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | off | cross-off | cross | cross-off | cross-on | on | cross-on | glassy |
High Tide | 00:34AM4.14m | 1:19PM4.14m | 2:09AM4.07m | 2:51PM4.25m | 3:28AM4.30m | 3:56PM4.59m | 4:22AM4.66m | 4:42PM5.02m | 5:03AM5.05m | 5:20PM5.44m | 5:38AM5.43m | 5:53PM5.82m | ||||||||
Low Tide | 6:18PM2.19m | 6:57AM2.32m | 7:53PM2.32m | 8:35AM2.30m | 9:23PM2.13m | 9:50AM2.01m | 10:22PM1.77m | 10:40AM1.61m | 11:05PM1.36m | 11:19AM1.21m | 11:42PM0.97m | 11:53AM0.84m | 00:15AM0.63m | |||||||
 |  | |  |  | | | |  | | | | | | |  |  |  | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — |
 | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 4 | — | — |
Temp °C | 16 | 16 | 18 | 17 | 17 | 19 | 20 | 17 | 18 | 19 | 19 | 21 | 20 | 18 | 20 | 20 | 17 | 16 | 17 | 16 |
Feels °C | 11 | 14 | 15 | 14 | 14 | 16 | 17 | 15 | 12 | 12 | 12 | 16 | 18 | 18 | 15 | 11 | 13 | 14 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 5 | N 6 | W 9 | W 9 | N 4 | WSW 12 | SE 6 | SW 14 | SW 13 | SW 9 | SW 9 | SW 8 | SSW 8 | W 8 | SW 7 | W 7 | SSW 6 | N 6 | WNW 7 |
| kJ | 112 | 16 | 39 | 25 | 14 | 9 | 55 | 13 | 31 | 27 | 12 | 19 | 35 | 43 | 35 | 139 | 88 | 41 | 46 | 175 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | W 9 | W 10 | WNW 6 | SW 15 | SW 14 | N 4 | WSW 10 | N 4 | W 9 | SSW 13 | WNW 10 | W 10 | W 9 | SW 12 | W 8 | — | SW 12 | SSW 7 | N 6 |
| kJ | 17 | 26 | 45 | 7 | 54 | 51 | 6 | 38 | 3 | 6 | 17 | 34 | 48 | 40 | 6 | 33 | — | 6 | 62 | 11 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 16 | SSW 15 | SSW 15 | NW 6 | W 9 | SE 6 | SW 14 | SW 9 | SW 9 | WNW 11 | NNE 5 | NNE 5 | NNE 5 | SW 12 | WSW 8 | — | — | SW 12 | SW 12 |
| kJ | 25 | 39 | 21 | 21 | 1 | 14 | 11 | 32 | 13 | 3 | 12 | 5 | 5 | 3 | 6 | 7 | — | — | 6 | 5 |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | — | N 5 | N 5 | ESE 5 | ESE 5 | NNE 4 | ESE 7 | ESE 8 | E 4 | ESE 4 | SE 4 | S 3 | SSW 7 | — | SSW 6 | WNW 6 | W 7 | SSW 7 |
| kJ | 34 | 17 | — | 19 | 15 | 25 | 55 | 5 | 82 | 102 | 21 | 18 | 12 | 2 | 207 | — | 212 | 265 | 245 | 51 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 235 | 13 | 0 | 24 | 13 | 1 | 16 | 12 | 233 | 224 | 189 | 246 | 0 | 1 | 4 | 189 | 5 | 25 | 28 | 0 |
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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