Surf Forecasts:
Whitsand Bay and Tregantle surf forecast from 18 Aug 2026:
- Best quality surf: Friday 21 Aug, 1AM (local time) - 2.5ft (0.7m), 9s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 4PM (local time) - 3.5ft (1.1m), 9s period, WSW swell with 193 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 1AM (local time) - 2.5ft (0.7m), 9s period with WSW swell.
Best Forecast Surf Conditions for Whitsand Bay and Tregantle this week:
The surf forecast for Whitsand Bay and Tregantle over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 1AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Whitsand Bay and Tregantle in the next 16 days are 1.1m 9s and forecast to arrive on Thursday (Aug 20) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Aug 25) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 21st Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 1AM (Fri 21st Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 4PM (Thu 20th Aug) | 3.5ft (1.1m) 9s |
Table - best surf conditions forecast for Whitsand Bay and Tregantle over the next 16 days.
The Lowdown
Right then, let’s have a look at what we’ve got for Whitsand Bay and Tregantle over the next couple of weeks. To be straight with you, the opening stretch is a bit of a write-off. We’re looking at a run of poor to non-existent conditions that goes on for over a week. The water temperature is sitting at 66°, which is a touch warmer than we’d normally see for this time of year, so that’s one small comfort if you’re just having a paddle. But for any proper surfing, you’ll be waiting a while.
The first real glimmer of something worthwhile doesn't show up until Thursday morning, the 27th of August. After all that flat and messy stuff, we finally get a bit of life. Whitsand Bay and Tregantle (Whitsand Bay and Tregantle) will see a clean 4ft swell pushing in from the SW, with a period of 8 seconds and a moderate wave energy (236) behind it. The wind turns offshore from the NE, light at 6 mph, which should give you some clean, lined-up waves. This is the standout of the entire forecast window. It’s not huge, but after so long with nothing, this is the only time worth paddling out. The break is inconsistent, so don’t expect a wave every minute, but when they come, they’ll be worth it. Crowds are often a factor here, so get in early.
After that Thursday morning window, the quality drops right off again. There’s a brief glimpse on Friday afternoon, the 28th of August, with some offshore wind and a 3ft SW swell, but it’s nothing special. Then we’re back to small, messy, or onshore conditions right through to the end of the forecast period on the 2nd of September. There’s one more pulse of size – Tuesday morning the 25th of August sees an 8ft SSW swell, but with strong cross-shore winds and a massive wave energy (897), it’s a messy, lumpy mess for experts only, and even then it’s not recommended. That sort of power and wind would make it far more interesting for a kite surfer than anyone on a paddle board. The rest of the run is flat or ordinary.
So, to sum it up: one morning, the 27th of August, is your window. Everything else is a long, frustrating wait.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 22°C on Tue morning, min 13°C on Thu night). Winds decreasing (fresh winds from the WNW on Wed afternoon, light winds from the NE by Thu night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri afternoon. Very mild (max 18°C on Sat morning, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 5 | WSW 4 | WSW 6 | WSW 7 | WSW 4 | WSW 7 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 10 | WSW 10 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 32 | 15 | 32 | 21 | 18 | 64 | 151 | 193 | 78 | 43 | 27 | 7 | 9 | 9 | 21 | 19 | 19 | 19 | 7 | 7 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-off | off | cross | cross-off | cross-off | cross-on | off | cross-off | on | cross-off | cross-on | on | glassy |
High Tide | 10:17AM5.10m | 10:32PM5.10m | 10:54AM4.84m | 11:11PM4.76m | 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 | ||||||||
Low Tide | 4:18PM1.35m | 4:42AM1.51m | 5:00PM1.75m | 5:25AM1.92m | 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 | ||||||||
 |  |  | | |  |  | | |  |  |  |  | |  | | | | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — |
mm | — | — | 2 | — | — | — | — | — | — | 2 | 5 | 1 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 18 | 20 | 20 | 16 | 18 | 19 | 15 | 17 | 17 | 14 | 18 | 18 | 17 | 18 | 18 | 16 | 18 | 18 | 16 |
Feels °C | 19 | 18 | 15 | 16 | 14 | 12 | 13 | 14 | 12 | 17 | 15 | 10 | 14 | 16 | 12 | 14 | 16 | 12 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 17 | SW 17 | WSW 7 | SW 16 | SSW 15 | SW 14 | SSW 14 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 10 | ESE 6 | ESE 6 | E 7 | ESE 6 | SSW 14 | SW 14 | SW 13 | WSW 3 |
| kJ | 11 | 11 | 11 | 21 | 10 | 23 | 8 | 20 | 78 | 43 | 27 | 7 | 9 | 14 | 3 | 3 | 3 | 19 | 7 | 7 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 10 | — | SW 15 | — | — | SW 14 | SW 13 | SW 13 | SW 14 | SW 15 | WSW 10 | SSW 15 | SSW 14 | SSW 14 | W 8 | W 9 | W 9 | SW 13 |
| kJ | — | — | — | 7 | — | 9 | — | — | 7 | 7 | 7 | 7 | 9 | 9 | 21 | 19 | 19 | 1 | 1 | 2 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 16 | — | — | — | — | — | S 16 | S 16 | S 16 | SW 12 | SW 15 | W 9 | W 9 | W 9 | SE 4 | E 4 | — | W 8 |
| kJ | — | — | — | 10 | — | — | — | — | — | 5 | 5 | 5 | 6 | 8 | 6 | 6 | 6 | 1 | 1 | — | 1 |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 4 | WSW 6 | — | WSW 4 | WSW 7 | WSW 9 | WSW 9 | NNW 3 | — | — | N 3 | ENE 3 | NE 3 | NNE 2 | — | — | NNW 2 | — | WSW 2 | — |
| kJ | 32 | 15 | 32 | — | 18 | 64 | 151 | 193 | 1 | — | — | 1 | 3 | 1 | 1 | — | — | 1 | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 276 | 188 | 134 | 153 | 188 | 217 | 150 | 148 | 0 | 12 | 189 | 139 | 47 | 63 | 232 | 54 | 106 | 63 | 494 | 532 | 477 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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