Surf Forecasts:
Sandy Mouth surf forecast from 15 Aug 2026:
- Best quality surf: Friday 21 Aug, 1AM (local time) - 3ft (0.9m), 9s period, W swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 7AM (local time) - 5ft (1.6m), 7s period, W swell with 262 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 1AM (local time) - 3ft (0.9m), 9s 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 Friday (Aug 21) at 1AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.2m and 4s. 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 7s and forecast to arrive on Thursday (Aug 20) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Saturday (Aug 22) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 21st Aug) | 3ft (0.9m) 9s |
| Best Surf | 1AM (Fri 21st Aug) | 3ft (0.9m) 9s |
| Most Powerful | 7AM (Thu 20th Aug) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Sandy Mouth over the next 16 days.
The Lowdown
Alright, grab your board, let’s talk about Sandy Mouth. It’s a bit of a quiet stretch ahead, so we gotta be patient. The water’s sitting at 67°, which is a solid 5° warmer than usual for this time of year – that’s a real treat, so you might not even need the thickest wetsuit.
The next couple of weeks are looking pretty flat and messy. We’ve got some swell, but the winds are all over the place, mostly onshore or cross-shore, and that’s just chopping everything up. We’re looking at a lot of poor surf conditions, with the wave energy staying weak, like that 87 on Saturday afternoon.
There’s a real gap here. After this initial poor spell, things just stay quiet for a while. It’s not until the 21st, that Friday morning, that we finally get a sniff of something. The wind swings around to a light cross-offshore from the NNE, and the new W swell at 3ft with a 9-second period cleans things up. The wave energy jumps a bit to 102, and it’s the first time conditions are called “clean.” It’s ordinary, but it’s the best we’ve seen in a week.
After that, it’s mostly a blank run again. The swell drops right off, and we get those small, weak 0.3ft to 1ft pulses with long periods from the southwest, but the wind is howling from the northeast, making it just not worth the paddle. There are days with offshore winds, like the 22nd and the 29th, where it’s clean, but the swell is just too small to get excited about. It’s a real test of patience.
The one thing that keeps me a little hopeful is that Sandy Mouth is a consistent spot. It tends not to stay flat for long. This run might be a test, but forecasts can change. We just have to wait for something to line up. Keep the board waxed, but maybe don't rush out there for a while.
Alright, that’s the picture. I’ll be keeping an eye on it.
- Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 14°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Very mild (max 19°C on Fri morning, min 14°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 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 8 | W 7 | W 7 | W 7 | WNW 5 | WNW 8 | W 7 | WNW 6 | W 6 | W 6 | W 6 | W 6 | W 7 | W 7 | WNW 7 | W 9 | W 9 | W 8 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 57 | 40 | 17 | 16 | 9 | 27 | 87 | 66 | 143 | 91 | 95 | 104 | 104 | 233 | 225 | 96 | 127 | 94 | 68 | 36 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | on | cross-on | on | on | on | cross-on | on | on | on | on | on | cross-on | glassy | cross-off | cross | cross-off |
High Tide | 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 | 11:27AM5.79m | 11:54PM5.50m | 12:24PM5.31m | 1:03AM5.07m | |||||||
Low Tide | 2:44AM0.14m | 2:57PM0.32m | 3:20AM0.48m | 3:34PM0.69m | 3:55AM0.94m | 4:10PM1.17m | 4:31AM1.47m | 4:49PM1.71m | 5:11AM2.01m | 5:36PM2.24m | 6:04AM2.51m | 6:42PM2.68m | ||||||||
 |  |  | | | | | | | | | | |  | | |  | | |  | |
 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — |
 | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | 1 |
Temp °C | 19 | 15 | 18 | 18 | 18 | 20 | 19 | 19 | 19 | 18 | 17 | 18 | 17 | 16 | 18 | 18 | 16 | 19 | 19 | 17 |
Feels °C | 15 | 12 | 16 | 15 | 18 | 20 | 18 | 17 | 18 | 15 | 15 | 14 | 12 | 12 | 15 | 15 | 15 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 7 | W 7 | W 7 | WNW 5 | WNW 8 | — | W 17 | W 17 | W 17 | W 16 | W 16 | SW 16 | W 15 | W 9 | W 9 | W 9 | W 8 | W 9 |
| kJ | 57 | 40 | 17 | 16 | 9 | 27 | 87 | — | 6 | 6 | 6 | 5 | 5 | 10 | 4 | 56 | 127 | 94 | 68 | 36 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 18 | WNW 9 | W 18 | — | — | — | — | — | — | — | — | SW 14 | NNW 4 | W 16 | W 13 | W 11 |
| kJ | — | — | — | — | 6 | 16 | 6 | — | — | — | — | — | — | — | — | 8 | 2 | 5 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 7 | — | — | — | — | — | — | — | — | — | — | SW 14 | W 13 | W 16 | W 16 |
| kJ | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | 8 | 3 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | NNW 4 | NNW 3 | WNW 4 | — | — | W 7 | WNW 6 | W 6 | W 6 | W 6 | W 6 | W 7 | W 7 | WNW 7 | — | — | NNW 5 | NNW 4 |
| kJ | 30 | 24 | 7 | 2 | 4 | — | — | 66 | 143 | 91 | 95 | 104 | 104 | 233 | 225 | 96 | — | — | 36 | 15 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 235 | 235 | 245 | 375 | 235 | 296 | 248 | 334 | 296 | 317 | 88 | 68 | 248 | 319 | 81 | 240 | 0 | 0 | 101 | 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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