Surf Forecasts:
Bossiney Haven surf forecast from 17 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 1AM (local time) - 6ft (1.9m), 8s period, W swell with 408 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 1.9m 8s and forecast to arrive on Thursday (Aug 20) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Thu 20th Aug) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Bossiney Haven over the next 16 days.
The Lowdown
Alright, let’s get this out there. It’s Rusty here, and I’ve been staring at the charts for Bossiney Haven. Straight up, the next week and a half is looking grim. We’ve got a whole lot of nothing, and then a whole lot of wind, but not much in the way of decent surf. The water’s sitting at 66° right now, which is a good four degrees warmer than normal for this time of year. That’s something, at least.
To be honest, from Monday the 17th through the end of August, it’s a write-off. There’s surf on the cards, but it’s all junky. Wave heights bump around from 0.9 ft up to 7 ft, but the wind is just constantly ruining it. Cross-shore, cross-on, onshore, fresh breezes, lumpy chop—you name it, we get it. There’s some energy in the water, but it’s all over the place, with readings between 28 and 637 in the combined energy department, but it means nothing when it’s blown out. Even the smaller clean days are so tiny you’d need a puddle to surf in.
Then we get into the end of the first week of September. The 1st of September is the only time we see a real pulse of energy. We’ve got a proper groundswell filling in, with a 8 ft swell from the W with a long 11-second period. The combined energy jumps right up to 1230, which is strong. The morning looks best with a moderate offshore SSW wind and clean conditions. This is the standout, no doubt. It’s a big, powerful swell, so we’re talking expert territory for sure. This spot is sheltered and fairly consistent, but it needs the right conditions. It’s a long way out, so treat it as promising, but a bit of a gamble.
The afternoon of that same day, the 1st, the swell is up even more to 8 ft but the period drops back to 8 seconds and the wind swings more cross-off. It’s still big, but it’s going to be a messier, more powerful beast. There will be some waves, but only for the brave. In the end, if you can only pick one window, it’s the morning of Tuesday, September 1st. It won’t be perfect, but it’s the only thing that even comes close to a decent surf. Before that, don't even bother.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Tue night. Very mild (max 19°C on Mon afternoon, min 16°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sat morning. Very mild (max 19°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 8 | W 6 | WNW 6 | W 6 | W 6 | W 6 | W 7 | W 8 | W 7 | WNW 7 | W 9 | W 8 | W 8 | W 9 | W 10 | W 9 | NNW 4 | W 9 | W 9 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 100 | 60 | 143 | 97 | 166 | 115 | 202 | 408 | 238 | 145 | 164 | 65 | 21 | 24 | 29 | 23 | 20 | 14 | 8 | 8 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | on | on | cross-off | cross-on | cross-on | cross-on | on | on |
High Tide | 9:36PM6.82m | 9:55AM6.42m | 10:14PM6.28m | 10:33AM5.94m | 10:55PM5.72m | 11:17AM5.45m | 11:44PM5.19m | 12:14PM5.01m | 00:54AM4.79m | 1:38PM4.77m | 2:29AM4.70m | 3:11PM4.89m | 3:50AM4.95m | |||||||
Low Tide | 3:48AM0.88m | 4:03PM1.10m | 4:24AM1.39m | 4:42PM1.62m | 5:04AM1.91m | 5:29PM2.12m | 5:56AM2.39m | 6:35PM2.54m | 7:15AM2.70m | 8:11PM2.70m | 8:55AM2.68m | 9:41PM2.49m | ||||||||
 |  |  |  |  |  | | | | |  |  | | | | | | | | | |
 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — |
 | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — |
mm | — | — | — | — | 3 | 2 | 1 | 4 | 1 | — | — | 1 | 1 | 1 | 2 | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 15 | 16 | 17 | 16 | 18 | 19 | 16 | 17 | 17 | 16 |
Feels °C | 17 | 17 | 16 | 16 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 15 | 14 | 14 | 14 | 15 | 11 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | W 18 | W 16 | W 17 | W 17 | W 17 | WNW 9 | W 16 | W 16 | W 9 | W 9 | W 9 | W 8 | W 6 | NNW 5 | W 10 | W 9 | W 9 | NNW 4 | W 9 | NNW 4 |
| kJ | 6 | 5 | 6 | 6 | 6 | 28 | 5 | 5 | 83 | 133 | 164 | 65 | 12 | 14 | 29 | 23 | 14 | 6 | 6 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 16 | — | — | W 15 | SW 14 | W 14 | NNW 4 | W 8 | W 9 | NNW 4 | SW 15 | SW 15 | W 9 | SW 14 | W 8 |
| kJ | — | — | — | — | — | 5 | — | — | 4 | 8 | 4 | 5 | 21 | 24 | 2 | 9 | 8 | 14 | 8 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 16 | W 16 | SW 15 | — | — | SW 14 | — | SW 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 5 | 9 | — | — | 8 | — | 8 |
Wind waves Height (m) Direction Period (s) | W 8 | W 6 | WNW 6 | W 6 | W 6 | W 6 | W 7 | W 8 | W 7 | WNW 7 | NNW 5 | — | NNW 5 | — | ENE 3 | N 3 | NNW 4 | — | NNW 4 | — |
| kJ | 100 | 60 | 143 | 97 | 166 | 115 | 202 | 408 | 238 | 145 | 13 | — | 14 | — | 1 | 8 | 20 | — | 5 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 258 | 316 | 240 | 233 | 111 | 233 | 233 | 240 | 111 | 104 | 50 | 9 | 78 | 26 | 25 | 30 | 291 | 25 | 78 | 239 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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