Surf Forecasts:
Sandy Mouth surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 22 Sep, 1PM (local time) - 3.5ft (1.0m), 11s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 1PM (local time) - 5ft (1.6m), 12s period, W swell with 746 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 7AM (local time) - 2.5ft (0.7m), 10s period with W swell.
Best Forecast Surf Conditions for Sandy Mouth this week:
The surf forecast for Sandy Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 7AM. The primary swell is predicted to be 0.7m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Sandy Mouth in the next 16 days are 1.6m 12s and forecast to arrive on Friday (Sep 18) at 1PM. 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+) | 7AM (Mon 21st Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 1PM (Tue 22nd Sep) | 3.5ft (1.0m) 11s |
| Most Powerful | 1PM (Fri 18th Sep) | 5ft (1.6m) 12s |
Table - best surf conditions forecast for Sandy Mouth over the next 16 days.
The Lowdown
Right then, Rusty here with the scoop on Sandy Mouth. Gotta be honest, the first part of this run is a total bust. For a full week, from the 15th to the 21st of September, there's nothing doing. The swell is weak and the wind is junk. Leave the stick at home.
We finally see a pulse on the morning of Monday the 22nd. The wind goes light offshore out of the southeast and there's a 0.9m west swell with a 12-second period. The energy is moderate (324), but that clean, glassy look should finally put a couple of rideable waves on the bank.
The best bets in the forecast are Wednesday the 23rd and then again on Thursday the 26th of September. On the 23rd morning, look for a 1.2m west swell, a 13-second period, and that magic east offshore wind. The combined energy is a healthy moderate (501), and the conditions are set for some very good surf. On the 26th, we get a 1.3m west swell with a very long 14-second period and clean conditions under a moderate cross-offshore wind. Energy is solid moderate (650). That longer period will groom the lines nicely.
Now, way out on Monday the 28th of September, there's a beast in the forecast. We're looking at a 4.0m west swell with extreme combined energy (3023). The report flat-out says it's going to be too big for this spot. The morning has light offshore wind, but that afternoon it swings onshore. That morning session is for absolute experts only, and even then, you'd want to be very sure of yourself. The rest of us will be watching from the beach.
Sandy Mouth can get a crowd on the good days, so plan your paddle accordingly. Water is unusually warm for the season, at 18°, so you might not need a full 4/3 wetsuit.
To put it simply: the first week is a write-off. Your best windows for clean, manageable waves are the 22nd, 23rd, and the 26th of September. The 28th is pure danger for the pros.
Rusty, signing off.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Very mild (max 16°C on Tue afternoon, min 14°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Fri afternoon. Very mild (max 19°C on Mon morning, min 14°C on Sat night). Winds decreasing (fresh winds from the SW on Fri afternoon, calm by Sun night). | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 9 | W 10 | W 11 | W 10 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 12 | W 8 | W 8 | W 8 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 329 | 373 | 621 | 505 | 130 | 427 | 406 | 300 | 191 | 723 | 368 | 327 | 432 | 500 | 279 | 198 | 125 | 96 | 90 | 96 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | on | cross-on | on | on | glassy | cross-on | glassy |
High Tide | 9:11PM7.18m | 9:27AM6.92m | 9:45PM6.62m | 10:02AM6.39m | 10:22PM6.02m | 10:41AM5.82m | 11:07PM5.44m | 11:35AM5.30m | 00:14AM4.97m | 12:59PM4.96m | 1:57AM4.82m | 2:46PM5.07m | 3:29AM5.13m | |||||||
Low Tide | 3:13AM0.95m | 3:30PM1.13m | 3:45AM1.47m | 4:05PM1.68m | 4:22AM2.02m | 4:48PM2.24m | 5:10AM2.56m | 5:52PM2.74m | 6:32AM2.96m | 7:40PM2.97m | 8:28AM2.95m | 9:20PM2.71m | ||||||||
 |  |  |  |  |  | | | |  | | | | | | | | | |  | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | 7:32 | — | — | 7:30 | — | — | 7:29 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:20 | — |
mm | — | — | — | — | 1 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 16 | 15 | 17 | 17 | 17 | 15 | 16 | 16 | 16 | 19 | 18 | 18 |
Feels °C | 11 | 12 | 11 | 12 | 11 | 11 | 9 | 10 | 10 | 9 | 13 | 14 | 14 | 13 | 13 | 14 | 16 | 20 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | — | W 9 | W 10 | W 11 | W 10 | — | — | W 10 | WNW 10 | NNW 5 | WNW 12 | WNW 11 | — | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 |
| kJ | — | 373 | 621 | 505 | 130 | — | — | 192 | 150 | 2 | 48 | 25 | — | 500 | 279 | 198 | 125 | 96 | 90 | 96 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNW 5 | — | W 16 | W 16 | — | — | W 14 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 8 | — | 5 | 5 | — | — | 4 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | NNW 5 | NNW 6 | NNW 5 | W 6 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 12 | W 8 | W 8 | W 8 | — | — | — | — | — | — | — |
| kJ | 329 | 13 | 43 | 21 | 96 | 427 | 406 | 300 | 191 | 723 | 368 | 327 | 432 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 360 | 56 | 56 | 90 | 431 | 278 | 278 | 83 | 286 | 248 | 248 | 265 | 195 | 86 | 10 | 47 | 47 | 0 | 102 | 0 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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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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