Surf Forecasts:
Bossiney Haven surf forecast from 20 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 1PM (local time) - 6ft (1.8m), 9s period, WNW swell with 528 kJ wave energy.
Best Forecast Surf Conditions for Bossiney Haven this week:
The most powerful waves expected at Bossiney Haven in the next 16 days are 1.8m 9s and forecast to arrive on Thursday (Aug 20) at 1PM. 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 Wednesday (Aug 26) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Thu 20th Aug) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Bossiney Haven over the next 16 days.
The Lowdown
Alright, let’s call it straight. Bossiney Haven is a sheltered spot, and this forecast is a long, slow tease. There’s a massive dry spell from now until the tail end of the month – over a week of flat or junk conditions.
Water temps are about 66°F, which is 4°F warmer than average for late August – a nice bonus for the wait.
The first real chance to get wet is Thursday the 27th of August in the afternoon. You’ll get a clean, light WSW breeze with a 3ft W swell at 10 seconds. Combined energy is a modest 126 (weak to moderate). It’s surfable, but nothing to write home about.
The standout, no contest, is the morning of Saturday the 29th of August. We’ve got a clean moderate offshore from the SSW, with a 7ft W swell, though it’s only a short 7-second period. Combined energy jumps to 427 (moderate). It’s a bit dumpy and short-interval, but it’s clean and the best wave of the run. Later that day and into Sunday the 30th, the swell pumps up to 10ft with a 10-second period, and energy hits a massive 1522 (strong to very strong). But the wind turns cross-off and fresh, making it more of a challenge. The 10ft on Sunday morning is cleaner with a moderate cross-off breeze and still huge energy (1416), but that size is strictly for experts.
For beginners that 7ft swell on the 29th morning is already pushing it. Anything over 8ft is expert-only, and those 10ft sets are no joke. This break does pick up swell fairly consistently when the angle is right, and W is its sweet spot, which these later pulses deliver.
So, hold your horses. A dead first week, then one solid clean session on the 29th, followed by some serious heavy water for the experienced at the end of August.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri morning. Very mild (max 18°C on Sat morning, min 14°C on Thu night). Winds decreasing (fresh winds from the WNW on Thu morning, light winds from the E by Sat night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Tue night. Warm (max 23°C on Tue afternoon, min 16°C on Sun night). Winds increasing (light winds from the NE on Sun night, fresh winds from the SE by Tue 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) | W 7 | WNW 9 | W 9 | W 8 | W 8 | W 8 | W 10 | W 9 | W 9 | W 9 | W 9 | WSW 9 | W 9 | W 9 | W 9 | WNW 10 | WNW 10 | WNW 9 | W 8 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 277 | 484 | 202 | 84 | 66 | 21 | 45 | 26 | 14 | 13 | 6 | 8 | 6 | 6 | 6 | 10 | 18 | 26 | 36 | 63 | 55 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | on | cross | on | cross-on | cross-on | on | cross | cross-off | cross-off | cross | cross-off | off | cross-off | off | cross-off | cross-off |
High Tide | 11:17AM5.45m | 11:44PM5.19m | 12:14PM5.01m | 00:54AM4.79m | 1:38PM4.77m | 2:29AM4.70m | 3:11PM4.89m | 3:50AM4.95m | 4:19PM5.28m | 4:45AM5.37m | 5:05PM5.76m | 5:26AM5.83m | 5:43PM6.25m | ||||||||
Low Tide | 5:29PM2.12m | 5:56AM2.39m | 6:35PM2.54m | 7:15AM2.70m | 8:11PM2.70m | 8:55AM2.68m | 9:41PM2.49m | 10:09AM2.34m | 10:41PM2.07m | 10:59AM1.88m | 11:24PM1.60m | 11:38AM1.41m | 00:00AM1.14m | ||||||||
 |  |  | | | |  | | | | | |  | |  | | |  | | |  | |
 | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — |
mm | 2 | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 5 | — | — | 1 |
Temp °C | 17 | 17 | 15 | 15 | 15 | 15 | 18 | 17 | 17 | 19 | 19 | 18 | 22 | 22 | 20 | 22 | 23 | 18 | 20 | 20 | 17 |
Feels °C | 12 | 12 | 11 | 11 | 10 | 13 | 15 | 14 | 14 | 16 | 15 | 16 | 14 | 15 | 13 | 17 | 21 | 18 | 15 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | W 9 | SW 14 | W 9 | W 8 | W 8 | WNW 5 | NNW 5 | W 9 | NNW 4 | W 9 | W 9 | NNW 4 | W 9 | W 9 | NNE 5 | WNW 10 | WNW 10 | WNW 9 | WSW 6 | W 8 | W 8 |
| kJ | 164 | 8 | 202 | 84 | 66 | 17 | 15 | 26 | 7 | 13 | 6 | 3 | 6 | 6 | 2 | 10 | 18 | 26 | 26 | 63 | 55 |
Swell 2 Height (m) Direction Period (s) | W 14 | — | W 14 | W 13 | W 13 | W 8 | W 10 | SW 15 | W 9 | NNW 3 | W 14 | WSW 9 | N 4 | W 14 | W 9 | NNE 5 | SW 8 | SW 8 | W 8 | WSW 6 | WNW 11 |
| kJ | 4 | — | 4 | 3 | 3 | 21 | 45 | 8 | 14 | 1 | 4 | 8 | 1 | 4 | 6 | 2 | 2 | 2 | 36 | 4 | 23 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 16 | W 16 | NNW 5 | SW 15 | — | SW 15 | SW 14 | — | W 14 | W 14 | W 9 | W 13 | W 8 | — | W 13 | W 13 | W 12 | WSW 7 |
| kJ | — | — | — | 5 | 5 | 8 | 9 | — | 8 | 8 | — | 4 | 4 | 2 | 3 | 5 | — | 3 | 3 | 3 | 5 |
Wind waves Height (m) Direction Period (s) | W 7 | WNW 9 | NNW 5 | NNW 5 | NNW 5 | — | — | N 5 | — | — | NNW 3 | — | E 3 | ENE 3 | ESE 2 | — | WSW 2 | SW 3 | — | — | — |
| kJ | 277 | 484 | 24 | 38 | 28 | — | — | 13 | — | — | 1 | — | 5 | 3 | 1 | — | 1 | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 111 | 572 | 41 | 61 | 61 | 25 | 9 | 30 | 26 | 78 | 78 | 25 | 404 | 399 | 396 | 226 | 47 | 17 | 201 | 10 | 10 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Bossiney Haven Surf forecast
The above surf forecast table for Bossiney Haven provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bossiney Haven can be found by selecting the local surf guide option on the grey menu. Our Bossiney Haven 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 (Bossiney Haven) 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 Bossiney Haven 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 North Cornwall? If you are looking for accommodation near Bossiney Haven, camping, hotels and holiday cottages in North Cornwall, consider staying in Padstow which is 19 km (12 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Bodmin which is 21 km (13 miles) away, Bude, Par and Saint Austell.
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