Surf Forecasts:
Gwithian surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 1AM (local time) - 2ft (0.6m), 11s period, W swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 4ft (1.2m), 11s period, W swell with 319 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 1AM (local time) - 2ft (0.6m), 11s 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 Wednesday (Aug 12) at 1AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.3m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Gwithian in the next 16 days are 1.2m 11s and forecast to arrive on Thursday (Aug 13) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Wednesday (Aug 12) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 12th Aug) | 2ft (0.6m) 11s |
| Best Surf | 1AM (Wed 12th Aug) | 2ft (0.6m) 11s |
| Most Powerful | 10AM (Thu 13th Aug) | 4ft (1.2m) 11s |
Table - best surf conditions forecast for Gwithian over the next 16 days.
The Lowdown
Alright folks, Rusty here, giving you the lowdown on Gwithian in good old feet and miles per hour.
We start off real slow. The first few days have tiny, underwhelming surf. Wednesday the 12th sees a bit of life with waves around 3ft to 3ft from the west, and Wednesday afternoon goes glassy calm with the wind dropping to zero – that’s a real nice, clean window. Water temp is about 65°, a touch warmer than usual for this time of year. The wave energy is moderate (126-139), so nothing to get too pumped about.
Thursday the 13th the swell bumps up to around 4ft, but the wind is onshore and messy, making it choppy. Energy is moderate to strong (320), but the quality is poor. Friday through Sunday stays small and wind-affected, with energy dropping real low – as low as 10-43 on Monday and Tuesday the 17th and 18th. That’s a weak, quiet stretch.
Then things change. Wednesday the 19th brings a solid WNW swell, hitting 8ft in the morning and 8ft in the afternoon. The combined energy is strong to very strong (677-1094). But the wind is onshore, so while it’s powerful, it’s gonna be messy. Not a clean day.
Thursday the 20th is the big one for the experienced crew. We’re looking at 10ft WNW swell with very strong energy (1279-1022). The wind is light cross-onshore, so it might just be surfable for experts. This is well over 8ft, so it’s for the brave only. The swell period is short at 8 seconds, so it’s windswell, but at that size Gwithian can throw down some heavy walls.
Friday the 21st morning offers a nice break from the big stuff. You’ve got 4ft WNW swell with a cross-offshore NE breeze at 9 mph. The energy is moderate (335) and conditions are forecast to be clean. A good option for a wider range of surfers.
Now, the real standout. Sunday the 23rd of August morning is looking fantastic: 8ft WNW swell with a gentle offshore SE wind at 9 mph. The combined energy is strong (785) and the forecast calls for “expect very good surf conditions.” That offshore wind is gonna make it clean, punchy, and all-time. This is the session you want to be there for.
From the 24th onward, it’s downhill. Strong onshore winds and blown-out, lumpy conditions take over, with waves around 5ft but no quality.
So here’s the takeaway: first week, small and average. Mid-period has heavy, expert-only surf on the 20th. But the best all-rounder, with size and clean wind, is Sunday the 23rd morning. That’s your day.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 18°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 20°C on Fri morning, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 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) | WNW 8 | W 13 | W 11 | W 10 | W 9 | W 10 | W 11 | W 10 | W 10 | W 9 | W 9 | WNW 6 | W 7 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | WNW 9 | W 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 19 | 12 | 85 | 125 | 139 | 184 | 319 | 284 | 183 | 159 | 251 | 85 | 131 | 93 | 72 | 39 | 15 | 15 | 8 | 16 | 243 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | glassy | cross | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | on | cross-on | cross-on | on |
High Tide | 5:01PM5.89m | 5:28AM5.87m | 5:50PM6.32m | 6:15AM6.18m | 6:35PM6.60m | 6:58AM6.34m | 7:17PM6.70m | 7:38AM6.36m | 7:56PM6.61m | 8:16AM6.22m | 8:35PM6.34m | 8:54AM5.95m | 9:13PM5.94m | ||||||||
Low Tide | 11:01AM0.84m | 11:32PM0.50m | 11:51AM0.44m | 00:20AM0.14m | 12:36PM0.15m | 1:03AM-0.06m | 1:17PM0.02m | 1:43AM-0.08m | 1:56PM0.05m | 2:21AM0.08m | 2:34PM0.24m | 2:57AM0.37m | 3:10PM0.56m | 3:32AM0.76m | |||||||
 | |  | | | | |  | | | | | | |  | | |  |  | | | |
 | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 23 | 23 | 20 | 25 | 25 | 21 | 21 | 21 | 19 | 20 | 18 | 18 | 18 | 17 | 16 | 18 | 18 | 18 | 19 | 20 | 19 |
Feels °C | 21 | 20 | 18 | 22 | 25 | 20 | 19 | 20 | 19 | 21 | 15 | 16 | 15 | 14 | 13 | 16 | 16 | 16 | 17 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 10 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 7 | W 8 | W 8 | W 7 | WNW 5 | W 7 | W 7 | WNW 9 | W 7 |
| kJ | 19 | 11 | 85 | 125 | 139 | 184 | 319 | 284 | 183 | 159 | 251 | 65 | 131 | 93 | 72 | 39 | 10 | 15 | 8 | 16 | 243 |
Swell 2 Height (m) Direction Period (s) | SW 6 | W 9 | WNW 7 | ESE 5 | ESE 5 | E 5 | E 5 | E 5 | E 5 | S 13 | S 13 | S 13 | NW 5 | — | S 12 | S 12 | W 7 | N 4 | W 10 | W 7 | SW 16 |
| kJ | 6 | 7 | 10 | 2 | 5 | 12 | 8 | 9 | 2 | 3 | 3 | 3 | 13 | — | 3 | 3 | 15 | 1 | 2 | 4 | 10 |
Swell 3 Height (m) Direction Period (s) | N 4 | W 13 | SW 6 | SW 6 | — | — | — | — | S 11 | S 13 | — | — | — | — | S 20 | S 19 | SW 18 | SW 18 | — | SW 18 | S 19 |
| kJ | 1 | 12 | 1 | 1 | — | — | — | — | 2 | 3 | — | — | — | — | 7 | 7 | 13 | 12 | — | 12 | 7 |
Wind waves Height (m) Direction Period (s) | — | SE 3 | SE 3 | E 5 | — | — | NW 2 | — | — | W 4 | — | WNW 6 | N 5 | N 5 | N 4 | NNE 4 | N 4 | — | — | WSW 4 | — |
| kJ | — | 3 | 2 | 24 | — | — | 1 | — | — | 12 | — | 85 | 10 | 28 | 14 | 4 | 3 | — | — | 9 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 382 | 193 | 0 | 0 | 0 | 13 | 14 | 214 | 5 | 5 | 14 | 14 | 14 | 14 | 184 | 13 | 254 | 397 | 419 | 500 | 293 |
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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