Surf Forecasts:
Gwithian surf forecast from 14 Sep 2026:
- Best quality surf: Monday 21 Sep, 4AM (local time) - 4.5ft (1.3m), 13s period, WNW swell with glassy winds.
- Most powerful swell: Friday 18 Sep, 4AM (local time) - 7.5ft (2.3m), 13s period, WNW swell with 1,671 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 4AM (local time) - 4.5ft (1.3m), 13s 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 Monday (Sep 21) at 4AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.1m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Gwithian in the next 16 days are 2.3m 13s and forecast to arrive on Friday (Sep 18) 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 0.1m 12s period and expected on Tuesday (Sep 15) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 21st Sep) | 4.5ft (1.3m) 13s |
| Best Surf | 4AM (Mon 21st Sep) | 4.5ft (1.3m) 13s |
| Most Powerful | 4AM (Fri 18th Sep) | 7.5ft (2.3m) 13s |
Table - best surf conditions forecast for Gwithian over the next 16 days.
The Lowdown
Alright, let’s talk Gwithian in feet and degrees. The water is running at 63.3°F right now, a touch warmer than usual for mid-September.
The first week is a stinker. Monday the 14th and Tuesday the 15th have us looking at poor conditions. Swell is there, around 3.9 to 5.9 feet from the west, but the wind is howling cross-onshore or onshore at 18 to 19 mph, turning everything to rough, choppy junk. Wave energy is moderate to strong, hitting between 236 and 418, but it doesn’t matter with that wind.
Wednesday the 16th through Saturday the 19th gets a bit bigger. Wednesday morning peaks near 6.6 feet from the west with an 11-second period, but it’s still onshore and lumpy. Energy cranks up to 1017 and later 1436 on Friday morning with a long 13-second pulse, but it’s all cross-onshore and messy. These are more kite-surfing days than surf days.
Sunday the 20th is still cross-on with dropping swell, around 4.3 to 5.9 feet.
Then, the real window. Monday the 21st and Tuesday the 22nd. Swell drops to about 3.3 to 4.3 feet from the west and west-northwest, with 12 to 13-second intervals. The wind goes glassy—dead calm Monday morning and afternoon, and light offshore or glassy Tuesday. That’s clean, fun waves. Energy is moderate at 301 to 425, but the quality is good. Expect company if you go.
Wednesday the 23rd drops to small 3.3 feet with short period and side wind. Thursday the 24th into Friday the 25th sees a long-period 14 to 18-second swell come through, but it’s only 3.3 to 4.3 feet, with heavy offshore wind at 19 to 22 mph. Clean faces but blown out again, and with that kind of period, a beach break like this gets tricky.
After that, it’s small and weak through to the end of the outlook, under 2 feet with poor or ordinary conditions.
The one standout? Monday 21st and Tuesday 22nd. That’s your call.
Short Range ForecastSome drizzle, heaviest during Wed night. Very mild (max 19°C on Mon morning, min 14°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri afternoon. Very mild (max 18°C on Sat night, min 15°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 | W 9 | WSW 6 | W 8 | W 8 | WNW 9 | W 11 | WNW 11 | W 10 | W 8 | WNW 8 | WNW 10 | WNW 13 | W 12 | W 7 | W 11 | W 10 | W 10 | W 10 | W 10 | WNW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 230 | 181 | 64 | 418 | 393 | 708 | 951 | 698 | 520 | 504 | 645 | 1042 | 1430 | 1100 | 267 | 651 | 627 | 504 | 426 | 320 | 733 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | on | on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 12:31PM4.06m | 1:32AM3.93m | ||||||||
Low Tide | 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 | 6:09AM2.41m | 7:15PM2.41m | ||||||||
 |  |  | | | |  | |  | | | | |  | | | | | | |  | |
 | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — |
 | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:31 | — | — | 7:29 | — | — | 7:27 | — | — | 7:24 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 16 | 16 | 16 | 14 | 15 | 16 | 16 | 16 | 15 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 17 |
Feels °C | 17 | 17 | 17 | 11 | 10 | 12 | 8 | 11 | 11 | 10 | 10 | 9 | 11 | 11 | 13 | 14 | 15 | 17 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | S 11 | S 11 | S 11 | W 11 | WNW 11 | N 6 | — | S 13 | — | WNW 13 | S 17 | WNW 12 | SW 16 | W 10 | W 10 | W 10 | W 10 | WNW 14 |
| kJ | 230 | 181 | 46 | 2 | 2 | 2 | 951 | 698 | 15 | — | 3 | — | 1430 | 6 | 161 | 10 | 627 | 504 | 426 | 320 | 733 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | WNW 12 | S 11 | — | S 11 | S 11 | N 6 | S 13 | — | — | — | SW 12 | S 12 | SW 16 | S 12 | SW 15 | SW 14 | WNW 16 | WNW 15 | SW 13 |
| kJ | 6 | 6 | 27 | 2 | — | 2 | 2 | 41 | 4 | — | — | — | 6 | 3 | 10 | 3 | 9 | 8 | 26 | 193 | 7 |
Swell 3 Height (m) Direction Period (s) | — | W 14 | SW 12 | — | — | — | — | — | — | — | — | — | S 18 | S 18 | S 12 | S 12 | — | — | SW 14 | SW 14 | — |
| kJ | — | 4 | 6 | — | — | — | — | — | — | — | — | — | 6 | 6 | 3 | 3 | — | — | 8 | 8 | — |
Wind waves Height (m) Direction Period (s) | — | — | WSW 6 | W 8 | W 8 | WNW 9 | N 6 | — | W 10 | W 8 | WNW 8 | WNW 10 | — | W 12 | W 7 | W 11 | — | — | — | — | — |
| kJ | — | — | 64 | 418 | 393 | 708 | 66 | — | 520 | 504 | 645 | 1042 | — | 1100 | 267 | 651 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 5 | 5 | 214 | 214 | 115 | 69 | 214 | 211 | 172 | 553 | 115 | 277 | 223 | 211 | 223 | 45 | 5 | 5 | 5 | 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.
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