Surf Forecasts:
Sandy Mouth surf forecast from 13 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 4PM (local time) - 4.5ft (1.3m), 8s period, WNW swell with 239 kJ wave energy.
Best Forecast Surf Conditions for Sandy Mouth this week:
The most powerful waves expected at Sandy Mouth in the next 16 days are 1.3m 8s and forecast to arrive on Thursday (Aug 20) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 20th Aug) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Sandy Mouth over the next 16 days.
The Lowdown
Right then, let’s have a look at the 16-day picture for Sandy Mouth. It’s a bleak stretch ahead, I gotta be straight with you. We’re looking at a long gap with pretty much nothing worth paddling out for, and it doesn’t really change until late in the window.
The water temperature right now is sitting at 66°, which is a notable 4° warmer than usual for this time of year – feels like a muggy, unseasonable bath for mid-August.
The first proper look we get is on the morning of Thursday the 21st of August. It’s not a standout by any stretch, but there’s a small, clean 2ft west swell rolling in (moderate combined wave energy of 61). It’s got a light offshore breeze from the northeast, so the surface will be clean. That’s about the only positive, though – the swells are tiny and the conditions are described as very ordinary. Crowds are unpredictable here so you might have it to yourself, but don’t get too excited.
The only other moments that might raise an eyebrow come right at the end of the run. On the afternoon of Sunday the 23rd of August, we get a slightly better 5ft west swell (339 combined energy – moderate to strong) with a clean cross-off wind from the southeast. The period is only 9 seconds so it’s a bit short and choppy, but it’s the biggest pulse in ages. Then on Monday the 24th of August, the morning starts glassy calm with a small 2ft west swell – combine that with zero wind and you’ll get a clean, tidy little wave. The afternoon gets a bit of a bump up to 4ft from the north-northwest, still glassy, but with a risk of thunderstorms hanging around.
For the majority of this 16-day outlook, it’s a case of poor surf conditions, cross-onshore winds, and small, weak swells. The runs from now right through to the 21st are essentially a write-off. If you’re desperate for a paddle, the 24th is your best bet. Once that’s done, the forecast turns back to mediocre small swells with strong offshore winds that will just blow the tops off anything rideable. Not a classic period for Sandy Mouth.
Stay patient.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Thu afternoon, min 14°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Mon morning, min 15°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 10 | W 10 | W 9 | W 9 | WNW 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | WNW 8 | W 6 | W 7 | W 7 | WNW 7 | W 6 | WNW 6 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 196 | 149 | 104 | 99 | 112 | 61 | 72 | 40 | 17 | 16 | 9 | 8 | 24 | 72 | 212 | 152 | 191 | 97 | 66 | 64 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross | cross | cross-on | cross | cross | cross-on | on | on | cross-on | on | on | on | on | on | on | on |
High Tide | 7:11PM8.06m | 7:34AM7.80m | 7:52PM8.19m | 8:13AM7.81m | 8:32PM8.07m | 8:52AM7.63m | 9:10PM7.75m | 9:29AM7.30m | 9:47PM7.27m | 10:06AM6.84m | 10:25PM6.68m | 10:44AM6.32m | 11:05PM6.07m | |||||||
Low Tide | 1:28AM0.02m | 1:42PM0.08m | 2:07AM-0.02m | 2:20PM0.11m | 2:44AM0.14m | 2:57PM0.32m | 3:20AM0.48m | 3:34PM0.69m | 3:55AM0.94m | 4:10PM1.17m | 4:31AM1.47m | 4:49PM1.71m | ||||||||
 |  |  |  | | | |  | | | | | | | | | | | | | |
 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 19 | 21 | 20 | 18 | 19 | 18 | 15 | 17 | 18 | 16 | 20 | 18 | 18 | 20 | 20 | 19 | 19 | 18 | 17 |
Feels °C | 20 | 20 | 21 | 20 | 18 | 15 | 13 | 11 | 15 | 16 | 15 | 19 | 17 | 16 | 18 | 18 | 18 | 17 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | W 9 | WNW 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | WNW 8 | — | W 17 | W 17 | W 17 | W 16 | W 8 | W 8 |
| kJ | 196 | 149 | 104 | 99 | 112 | 61 | 72 | 40 | 17 | 16 | 9 | 8 | 24 | — | 6 | 6 | 6 | 5 | 32 | 64 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 5 | W 10 | W 18 | — | — | — | — | — | W 16 | W 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | 2 | 7 | 6 | — | — | — | — | — | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 18 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | N 4 | NNW 4 | NNW 4 | N 4 | NNW 3 | NNW 3 | — | W 3 | W 6 | W 7 | W 7 | WNW 7 | W 6 | WNW 6 | WNW 6 |
| kJ | — | — | — | — | — | 24 | 17 | 27 | 8 | 2 | 2 | — | 5 | 72 | 212 | 152 | 191 | 97 | 66 | 50 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 291 | 47 | 47 | 316 | 103 | 537 | 316 | 103 | 102 | 317 | 473 | 296 | 235 | 103 | 220 | 216 | 80 | 81 | 278 | 278 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sandy Mouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Sandy Mouth Surf forecast
The above surf forecast table for Sandy Mouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sandy Mouth can be found by selecting the local surf guide option on the grey menu. Our Sandy Mouth 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 (Sandy Mouth) 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 Sandy Mouth 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.
Sandy Mouth is 2 km (1 miles) from Bude. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Bude. Bude has rooms for a wide range of budgets as well as car hire and transport links.
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