Surf Forecasts:
Gwithian surf forecast from 8 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 10PM (local time) - 2.5ft (0.8m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Friday 11 Sep, 1AM (local time) - 8ft (2.4m), 9s period, WSW swell with 917 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 10PM (local time) - 2.5ft (0.8m), 8s period with WSW 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 Wednesday (Sep 09) at 10PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.6m and 9s. 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 2.4m 9s and forecast to arrive on Friday (Sep 11) at 1AM. 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 16s period and expected on Friday (Sep 11) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 9th Sep) | 2.5ft (0.8m) 8s |
| Best Surf | 10PM (Wed 9th Sep) | 2.5ft (0.8m) 8s |
| Most Powerful | 1AM (Fri 11th Sep) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Gwithian over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let me tell you straight up, this isn't the most inspiring 16-day stretch for Gwithian. We’ve got a long, frustrating run of poor conditions for paddle surfing. The first week is a write-off, and even the better days later on are just 'okay' rather than anything to get properly amped about.
The problem is a relentless run of cross-onshore and onshore wind from the north and northwest, which is just wrecking the wave faces. We’re looking at a massive gap of no decent surf recommendations for over a week, from now until the morning of the 18th of September. That's ten long days of chop and lumpy junk, so maybe break out the kitesurf gear because a lot of those bigger, messier days with 6ft to 7ft of lumpy swell are going to be more fun for the kite crew. The water temp feels average for this time of year, nothing weird going on there.
Now, let’s look at the one tiny window where things clean up. On the morning of the 18th of September, we finally get a break. The wind is due east at 3 mph, glassy. Absolutely glassy. That’s a massive positive. We’ve got a solid 5ft swell rolling in from a westerly direction. The combined swell energy is moderate (527) and the period is a long 11 seconds, which means proper groundswell lines. Because the period is so long, the beach can get a bit straight, but with those clean conditions and 4ft to 5ft sets, it’s the standout of the whole run. That Friday morning is your best chance, but with crowds listed as ‘often’, expect plenty of company. That afternoon stays clean with offshore wind too.
The morning of the 19th of September offers another go with clean offshore wind from the ESE at 12 mph, but the swell has dropped significantly to 3ft. The combined energy is down to 219, and the period drops to 10 seconds. It's surfable, but ordinary. By the 21st, a massive 6ft swell arrives with a very long 16-second period, but the wind is howling onshore at 31 mph, making it completely unsurfable – that's a huge combined energy (1487) completely blown out.
So, keep the faith for that Friday the 18th. It’s a short window of quality, but it’s the only one we’ve got.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon night. Very mild (max 17°C on Thu morning, min 14°C on Mon night). Winds decreasing (fresh winds from the NW on Tue afternoon, light winds from the W by Wed afternoon). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Very mild (max 19°C on Sun afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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 | WNW 9 | W 9 | WNW 9 | WNW 9 | WNW 8 | SW 7 | WSW 6 | WSW 9 | W 9 | W 8 | W 8 | W 10 | W 10 | W 7 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 627 | 613 | 595 | 254 | 140 | 73 | 56 | 136 | 917 | 493 | 258 | 185 | 230 | 294 | 315 | 461 | 390 | 234 | 159 | 123 | 116 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | cross-off | cross | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 3:58PM5.42m | 4:29AM5.45m | 4:50PM5.93m | 5:16AM5.88m | 5:34PM6.33m | 5:57AM6.21m | 6:14PM6.58m | 6:34AM6.39m | 6:51PM6.64m | 7:10AM6.42m | 7:27PM6.53m | 7:45AM6.29m | 8:02PM6.26m | ||||||||
Low Tide | 9:58AM1.29m | 10:32PM0.90m | 10:52AM0.81m | 11:20PM0.44m | 11:36AM0.40m | 00:02AM0.12m | 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 | |||||||
 |  |  |  | |  | |  |  | | | | | |  | | | | | | | |
 | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — | — | 7:37 | — |
mm | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 15 | 15 | 15 | 17 | 17 | 17 | 16 | 15 | 14 | 16 | 16 | 17 | 18 | 19 | 19 | 20 | 20 | 18 |
Feels °C | 9 | 9 | 10 | 11 | 13 | 14 | 12 | 12 | 14 | 13 | 11 | 11 | 12 | 12 | 14 | 18 | 19 | 19 | 19 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | W 9 | — | W 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | W 11 | WSW 9 | W 9 | W 8 | W 8 | W 10 | W 10 | S 14 | SW 13 | W 9 | W 9 | W 9 | W 9 | W 8 |
| kJ | 627 | — | 595 | 254 | 140 | 73 | 37 | 9 | 917 | 493 | 258 | 185 | 230 | 294 | 4 | 7 | 390 | 234 | 159 | 123 | 116 |
Swell 2 Height (m) Direction Period (s) | SW 11 | — | — | WSW 8 | WSW 8 | WSW 8 | N 5 | — | — | — | S 16 | N 5 | NW 14 | — | — | SW 13 | SW 13 | S 13 | SW 12 | SW 12 | WNW 12 |
| kJ | 5 | — | — | 105 | 55 | 39 | 2 | — | — | — | 5 | 10 | 48 | — | — | 7 | 7 | 3 | 6 | 6 | 15 |
Swell 3 Height (m) Direction Period (s) | — | — | — | N 6 | N 5 | N 6 | W 12 | — | — | — | — | W 18 | N 4 | SW 15 | — | — | — | — | — | — | S 12 |
| kJ | — | — | — | 39 | 21 | 11 | 11 | — | — | — | — | 6 | 1 | 8 | — | — | — | — | — | — | 3 |
Wind waves Height (m) Direction Period (s) | WNW 9 | WNW 9 | — | — | — | — | SW 7 | WSW 6 | — | — | N 5 | — | — | SW 3 | W 7 | W 9 | — | — | — | — | — |
| kJ | 516 | 613 | — | — | — | — | 56 | 136 | — | — | 17 | — | — | 2 | 315 | 461 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 168 | 214 | 115 | 14 | 14 | 0 | 5 | 210 | 163 | 14 | 14 | 13 | 5 | 5 | 5 | 5 | 4 | 5 | 5 | 5 | 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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