Surf Forecasts:
Whitsand Bay and Tregantle surf forecast from 20 Aug 2026:
- Most powerful swell: Wednesday 26 Aug, 4PM (local time) - 5ft (1.6m), 8s period, SSW swell with 351 kJ wave energy.
Best Forecast Surf Conditions for Whitsand Bay and Tregantle this week:
The most powerful waves expected at Whitsand Bay and Tregantle in the next 16 days are 1.6m 8s and forecast to arrive on Wednesday (Aug 26) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (Aug 24) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Wed 26th Aug) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Whitsand Bay and Tregantle over the next 16 days.
The Lowdown
Alright, Rusty here again for the imperial crew. Let’s be real—this forecast is a long haul before anything decent turns up. The first week and a half is lean.
Starting Thursday August 20th at Whitsand Bay and Tregantle. Water temp is about 66°, a touch warmer than average. We’ve got a 4ft swell from the WSW with a 9-second period, but a 15 mph cross-on westerly wind is chopping it up. Combined energy is weak (184). Not a day for paddling out.
Friday and Saturday the 21st and 22nd drop to near flat—0.7ft to 0.7ft, barely any energy. Sunday the 23rd and Monday the 24th are clean but flat as a pancake. Tuesday the 25th sees a tiny 2ft swell from the SW with a 8-second period and only 57 energy. Not worth suiting up.
Wednesday the 26th bumps up to 4ft from the SSW with a 7-second period and moderate energy (156), but cross-on southerly winds at 12 mph make it a choppy mess. This pattern holds through the end of August. By Saturday the 29th, we’ve got a solid 10ft SW swell with very strong energy (1429), but it’s under fresh cross-onshore winds and lumpy. Only for the brave.
The whole stretch from Thursday August 27th to Wednesday September 2nd stays rough—onshore winds, lumpy seas, and rain or thunderstorms mixing in. Swell runs 5ft to 7ft but the wind never lets it settle.
Finally, Friday September 4th is the day. Morning brings 6ft from the SW, 8-second period, clean with a light cross-off breeze at 9 mph from the NNE. Good energy (370). Then the afternoon turns glassy—3 mph from the SW, 5ft swell, 338 energy, and clean as a whistle. This is the standout. Whitsand Bay and Tregantle will actually have proper waves and no wind messing them up. Remember, this spot can be inconsistent, so grab it while it’s there.
Crowds are often around, but with conditions like that, you won’t mind sharing a few.
Keep your eyes on the charts, and I’ll see you out there.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Very mild (max 19°C on Thu morning, min 13°C on Thu night). Winds decreasing (fresh winds from the WNW on Thu morning, calm by Sat afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 20°C on Mon morning, min 16°C on Sun night). Winds increasing (light winds from the ESE on Sun morning, strong winds from the E by Mon morning). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | WSW 9 | WSW 9 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 10 | SSW 15 | SSW 15 | SSW 14 | SW 13 | SW 10 | SSW 13 | SSW 13 | SSW 13 | SW 8 | SW 8 | SW 8 | SSW 7 | SSW 8 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 176 | 181 | 80 | 31 | 24 | 14 | 9 | 21 | 21 | 19 | 28 | 19 | 17 | 17 | 17 | 11 | 16 | 34 | 272 | 351 | 187 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross | off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | on |
High Tide | 11:35AM4.56m | 11:58PM4.41m | 12:31PM4.30m | 1:05AM4.12m | 1:49PM4.13m | 2:33AM4.01m | 3:13PM4.16m | 3:53AM4.11m | 4:23PM4.37m | 4:55AM4.34m | 5:15PM4.64m | 5:41AM4.61m | 5:58PM4.92m | ||||||||
Low Tide | 5:49PM2.15m | 6:18AM2.29m | 6:56PM2.46m | 7:34AM2.55m | 8:25PM2.59m | 9:01AM2.59m | 9:47PM2.47m | 10:14AM2.41m | 10:48PM2.19m | 11:06AM2.11m | 11:33PM1.85m | 11:48AM1.77m | 00:11AM1.52m | ||||||||
 | |  |  | | | |  |  | | | | | | | | |  |  |  |  | |
 | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — |
 | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — |
mm | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 5 | 3 |
Temp °C | 19 | 19 | 15 | 18 | 18 | 14 | 18 | 17 | 17 | 19 | 19 | 17 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 17 |
Feels °C | 14 | 13 | 12 | 15 | 14 | 10 | 14 | 14 | 14 | 16 | 16 | 15 | 12 | 12 | 11 | 15 | 17 | 18 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SSW 14 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 10 | WSW 10 | ESE 4 | SSW 14 | SW 13 | SE 5 | WSW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SSW 7 | SSW 8 | SW 8 |
| kJ | 8 | 20 | 80 | 31 | 24 | 14 | 9 | 9 | 1 | 19 | 28 | 3 | 8 | 3 | 3 | 11 | 16 | 34 | 272 | 351 | 187 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 14 | SW 13 | SW 13 | WNW 3 | SW 15 | SSW 15 | SSW 15 | W 9 | W 8 | SW 10 | SSW 13 | SSW 13 | SSW 13 | SW 11 | SE 3 | SW 13 | S 12 | W 8 | SE 5 |
| kJ | — | — | 7 | 7 | 7 | 1 | 9 | 21 | 21 | 2 | 1 | 14 | 17 | 17 | 17 | 5 | 3 | 7 | 3 | 1 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 16 | S 16 | SW 14 | SW 12 | SW 12 | W 9 | — | W 9 | SSW 14 | W 9 | W 9 | W 9 | SW 13 | E 5 | W 10 | SW 13 | SE 4 | SE 5 |
| kJ | — | — | — | 5 | 5 | 7 | 6 | 6 | 6 | — | 6 | 19 | 7 | 2 | 1 | 7 | 1 | 2 | 6 | 3 | 8 |
Wind waves Height (m) Direction Period (s) | WSW 9 | WSW 9 | NW 3 | — | NW 3 | N 3 | ENE 2 | ESE 3 | — | E 3 | SE 5 | — | ESE 6 | ESE 6 | ESE 4 | E 3 | S 3 | SSW 4 | — | — | — |
| kJ | 176 | 181 | 2 | — | 2 | 1 | 1 | 4 | — | 1 | 6 | — | 84 | 135 | 49 | 8 | 1 | 10 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 524 | 188 | 6 | 12 | 12 | 60 | 47 | 54 | 63 | 69 | 71 | 70 | 442 | 180 | 249 | 71 | 69 | 54 | 141 | 90 | 60 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Whitsand Bay and Tregantle Surf forecast
The above surf forecast table for Whitsand Bay and Tregantle provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Whitsand Bay and Tregantle can be found by selecting the local surf guide option on the grey menu. Our Whitsand Bay and Tregantle 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 (Whitsand Bay and Tregantle) 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 Whitsand Bay and Tregantle 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.
Are you planning a holiday in South Cornwall? If you are looking for accommodation near Whitsand Bay and Tregantle, camping, hotels and holiday cottages in South Cornwall, consider staying in Plymouth which is 7 km (4 miles) away. Other places in and around South Cornwall where you can find information about places to rent, and car hire include Fowey which is 27 km (17 miles) away, Brent, Par and Bodmin.
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