Surf Forecasts:
Lynmouth surf forecast from 18 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 4AM (local time) - 4.5ft (1.4m), 7s period, W swell with 199 kJ wave energy.
Best Forecast Surf Conditions for Lynmouth this week:
The most powerful waves expected at Lynmouth in the next 16 days are 1.4m 7s and forecast to arrive on Thursday (Aug 20) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Aug 26) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Thu 20th Aug) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Lynmouth over the next 16 days.
The Lowdown
Alright, Rusty here again, this time in feet and knots. Let's break this down.
Honestly, this is a pretty grim outlook for Lynmouth. The whole 16-day window is a tough slog, with barely a whisper of anything worth paddling out for. There's a long, dry gap right from today, the 18th of August, with almost nothing on offer for the first two weeks. The closest we get to a pulse is around the very end of the month and into September, but even that is more of a faint heartbeat than a real swell. The water temperature is sitting at 68°F, which is a whopping 6°F warmer than normal for this time of year – that's very unusual, you'd be sweating in your wettie.
For the first ten days or so, it's all tiny, weak surf. The combined swell energy barely cracks double digits for most of it, a measly 12 to 78 (weak energy). The wind is almost always a mess, either howling cross-shore at 19 knots or chopping things up. You’ll see some groundswell with 9-second periods around the 21st, but with heights of only 0.7ft, it’s like a lake with a ripple. The 25th of August morning shows a moment of glass, but the swell is still only 0.7ft – not enough to push a flea off a surfboard.
The only flicker of hope comes on the 1st of September, Tuesday morning. We finally see a bit of clean energy. Swell is 4ft from the west, with a gentle offshore wind from the south at 8 knots. The guidance says this spot loves a WNW swell and is a tricky point/river set-up for advanced surfers only. Combine that with the 4ft west swell and that clean offshore breeze, and you might find a few workable, if ordinary, waves. The combined energy is 156 (moderate). It’s the best on offer, but it’s not a stand-out.
The 2nd of September, Wednesday morning, is also a contender with that glassy condition and 4ft west swell, but the wind swings to a light northwesterly onshore in the afternoon, killing the vibe.
Honestly, this is a blank run for Lynmouth. There’s no real standout. For the vast majority of the 16 days, you're better off finding something else to do. It's a normal, frustrating dry spell for this sheltered spot.
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 14°C on Thu night). Winds decreasing (fresh winds from the W on Wed afternoon, light winds from the ENE by Fri morning). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Fri afternoon. Very mild (max 19°C on Sun afternoon, min 13°C on Sun morning). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 6 | W 6 | W 6 | W 4 | W 7 | W 7 | W 7 | W 9 | W 9 | W 7 | W 8 | NW 4 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 9 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 78 | 65 | 48 | 35 | 149 | 146 | 124 | 130 | 38 | 14 | 12 | 5 | 13 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | cross | cross | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | on | cross | cross-on | cross-off |
High Tide | 10:55PM7.95m | 11:14AM7.52m | 11:35PM7.22m | 11:57AM6.87m | 00:23AM6.54m | 12:52PM6.29m | 1:31AM6.01m | 2:16PM5.96m | 3:08AM5.88m | 3:52PM6.10m | 4:30AM6.21m | 4:59PM6.61m | ||||||||
Low Tide | 4:35PM1.37m | 4:56AM1.70m | 5:14PM1.98m | 5:36AM2.34m | 6:01PM2.60m | 6:28AM2.93m | 7:05PM3.13m | 7:45AM3.34m | 8:39PM3.36m | 9:24AM3.34m | 10:12PM3.14m | 10:42AM2.95m | 11:15PM2.64m | |||||||
 |  |  | | |  | |  | |  |  | | |  | | | | | | | |
 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — |
mm | — | 1 | — | — | 1 | 1 | — | — | — | 2 | 4 | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 17 | 17 | 17 | 17 | 16 | 17 | 17 | 15 | 15 | 15 | 15 | 18 | 16 | 14 | 19 | 16 | 16 | 17 | 16 |
Feels °C | 15 | 13 | 14 | 11 | 13 | 11 | 12 | 14 | 13 | 11 | 12 | 13 | 15 | 12 | 12 | 16 | 13 | 14 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | W 6 | W 16 | W 7 | W 9 | W 9 | W 9 | W 9 | W 7 | WNW 4 | NW 4 | W 9 | NW 4 | NW 4 | W 9 | WNW 4 | W 8 | W 9 | W 9 |
| kJ | — | — | 48 | 5 | 149 | 60 | 60 | 130 | 38 | 14 | 7 | 5 | 13 | 5 | 3 | 6 | 3 | 6 | 6 | 6 |
Swell 2 Height (m) Direction Period (s) | — | — | W 16 | — | W 9 | — | — | — | NW 4 | W 8 | W 8 | W 8 | W 10 | W 9 | W 9 | W 14 | W 8 | — | — | W 4 |
| kJ | — | — | 5 | — | 6 | — | — | — | 1 | 12 | 12 | 5 | 2 | 6 | 6 | 4 | 6 | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 16 | — | — | — | — | — | W 6 | W 10 | — | W 5 | W 15 | — | — | — | — | — |
| kJ | — | — | — | — | 5 | — | — | — | — | — | 2 | 2 | — | 2 | 4 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | — | W 4 | — | W 7 | W 7 | — | — | — | — | — | NW 4 | — | — | NW 4 | — | — | — | — |
| kJ | 78 | 65 | — | 35 | — | 146 | 124 | — | — | — | — | — | 3 | — | — | 2 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 282 | 50 | 104 | 282 | 200 | 79 | 79 | 27 | 29 | 104 | 337 | 309 | 248 | 66 | 104 | 438 | 259 | 380 | 437 | 168 |
Best forecast wave conditions in North Devon | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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Information about the Lynmouth Surf forecast
The above surf forecast table for Lynmouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lynmouth can be found by selecting the local surf guide option on the grey menu. Our Lynmouth 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 (Lynmouth) 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 Lynmouth 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 Devon? If you are looking for accommodation near Lynmouth, camping, hotels and holiday cottages in North Devon, consider staying in Barnstaple which is 25 km (16 miles) away. Other places in and around North Devon where you can find information about places to rent, and car hire include Nash Point which is 26 km (16 miles) away, Porthcawl, Watchet and Appledore.
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