Surf Forecasts:
Sandy Mouth surf forecast from 10 Sep 2026:
- Best quality surf: Monday 14 Sep, 10PM (local time) - 2.5ft (0.7m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 10PM (local time) - 6ft (1.9m), 9s period, W swell with 625 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 10PM (local time) - 2.5ft (0.7m), 8s 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 14) at 10PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sandy Mouth in the next 16 days are 1.9m 9s and forecast to arrive on Thursday (Sep 10) at 10PM. 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+) | 10PM (Mon 14th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 10PM (Mon 14th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 10PM (Thu 10th Sep) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for Sandy Mouth over the next 16 days.
The Lowdown
Alright, Rusty here, let's talk about what we’ve got on the cards for Sandy Mouth. Straight up, it’s a rough start. We’re looking at a solid 16-day window and for the first two weeks, honestly, it’s a write-off. The swell is just not working with the wind. It’s mostly cross or onshore, choppy, lumpy – not the kind of conditions that get a surfer out of bed. You’re looking at a gap of nearly two weeks from the start of the period with nothing worth paddling out for. The water is sitting at about 65°F, which is a fair bit warmer than usual for this time of year – that’s a 5°F anomaly, so the ocean has that late-summer feel to it even as we move through September.
Now, the end of the forecast window is where the interest finally picks up. The standout moment is looking like Thursday the 24th into Friday the 25th. Thursday afternoon is a beast, but it’s a serious one. Swell is jacking up to 10 ft from the west, and with that kind of size and the combined swell energy cranking up to 1315, this is heavy, powerful water. That’s expert-only territory – way too big for anyone but the most experienced. The wind is light and cross-onshore, keeping the surface relatively clean for that size, but you need to know what you’re doing.
If that Thursday is too much, Friday the 25th morning brings a more manageable pulse. Swell drops to 7 ft from the west, and the wind swings to a light cross-offshore from the ESE. That’s going to clean it right up, giving you some proper, lined-up waves. Energy is still solid at 986, but it’s not the freight train of the day before. The swell period is a short 8 seconds, so it's gonna be a bit more sectiony and won't have that long, drawn-out wall. Still, after two weeks of nothing, this is easily the best window we’ve got. It’s a consistent spot here at Sandy Mouth, so it should hold a few peaks.
Remember, Sandy Mouth can get crowded sometimes, especially when the quality pops like that. For the rest of the forecast, it’s a waiting game.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Sat night. Very mild (max 19°C on Sat afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the SW on Thu afternoon, light winds from the W by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Tue morning. Warm (max 21°C on Mon morning, min 14°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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 5 | W 8 | W 10 | W 10 | W 9 | W 8 | W 8 | W 7 | W 8 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | WNW 7 | W 8 | W 10 | W 10 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 287 | 533 | 301 | 188 | 107 | 169 | 223 | 307 | 320 | 228 | 140 | 101 | 99 | 66 | 119 | 198 | 349 | 414 | 353 | 218 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | on | cross-on | cross | cross | cross-on | cross-on |
High Tide | 6:10PM7.73m | 6:32AM7.62m | 6:50PM8.04m | 7:10AM7.84m | 7:27PM8.12m | 7:46AM7.86m | 8:03PM7.98m | 8:20AM7.70m | 8:37PM7.65m | 8:53AM7.37m | 9:11PM7.18m | 9:27AM6.92m | 9:45PM6.62m | ||||||||
Low Tide | 12:03PM0.57m | 00:28AM0.24m | 12:42PM0.22m | 1:04AM0.02m | 1:18PM0.06m | 1:38AM0.00m | 1:52PM0.09m | 2:11AM0.18m | 2:24PM0.30m | 2:42AM0.51m | 2:57PM0.66m | 3:13AM0.95m | 3:30PM1.13m | 3:45AM1.47m | |||||||
 |  |  |  | |  |  | | | | | | | | |  | | | | |  | |
 | 6:43 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — | — | 7:32 | — | — | 7:30 | — |
mm | — | 1 | 1 | — | — | — | — | — | 9 | — | — | — | — | — | — | 2 | — | 3 | — | — | — |
Temp °C | 18 | 17 | 17 | 18 | 17 | 15 | 18 | 19 | 18 | 18 | 17 | 17 | 21 | 20 | 18 | 17 | 17 | 16 | 15 | 16 | 15 |
Feels °C | 14 | 12 | 15 | 17 | 16 | 14 | 13 | 14 | 15 | 17 | 16 | 17 | 21 | 20 | 18 | 16 | 13 | 13 | 10 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | W 5 | W 11 | W 10 | W 10 | W 9 | W 8 | W 15 | — | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | WNW 11 | W 9 | W 8 | W 10 | W 10 | W 10 |
| kJ | 13 | 2 | 533 | 301 | 188 | 107 | 4 | — | 104 | 320 | 228 | 140 | 101 | 99 | 66 | 37 | 110 | 349 | 414 | 353 | 218 |
Swell 2 Height (m) Direction Period (s) | WSW 8 | — | — | — | — | — | — | — | — | — | W 13 | NW 4 | — | W 12 | W 12 | — | — | — | — | — | — |
| kJ | 11 | — | — | — | — | — | — | — | — | — | 3 | 1 | — | 3 | 11 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | WNW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 3 | W 8 | — | — | — | — | W 8 | W 7 | W 8 | — | — | — | — | — | — | W 8 | WNW 7 | — | NNW 6 | NNW 5 | NNW 5 |
| kJ | 2 | 287 | — | — | — | — | 169 | 223 | 307 | — | — | — | — | — | — | 119 | 198 | — | 53 | 48 | 26 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 240 | 245 | 22 | 47 | 47 | 35 | 61 | 248 | 57 | 47 | 47 | 24 | 14 | 61 | 35 | 90 | 1388 | 68 | 100 | 57 | 24 |
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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