Surf Forecasts:
Mablethorpe surf forecast from 11 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 7PM (local time) - 3.5ft (1.1m), 5s period, ESE swell with 59 kJ wave energy.
Best Forecast Surf Conditions for Mablethorpe this week:
The most powerful waves expected at Mablethorpe in the next 16 days are 1.1m 5s and forecast to arrive on Thursday (Aug 13) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Aug 13) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Thu 13th Aug) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Mablethorpe over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you. It’s looking pretty flat and grim out there for the next couple of weeks. We’ve got a long stretch of tiny, unorganized slop with not a single decent wave on the horizon. If you’re desperate for a paddle, you might find something, but honestly, it’s going to be a tough go.
The start of this period, through the 12th and 13th of August, is a write-off. We're talking ankle-biters under 2ft, mostly onshore and choppy. The energy is weak as hell too, with readings way down in the double digits. You’d be fighting more current than riding waves. Forget it.
There’s a bit of a tease on the morning of the 18th when the wind goes glassy and we see a sliver of 2ft, but it’s still poor surf conditions. The swell energy is only 33, so it’s just not there. It’s an empty ocean.
The only real pulse of swell in this whole 16-day window arrives on Sunday, the 23rd of August. The swell is still small, only 4ft to 4ft, but it’s coming from the north with a period of 6 to 7 seconds. The energy jumps to a moderate 147 on the afternoon. That’s the most we’ll see the entire time. The problem is it's accompanied by an east wind, which will make it onshore and messy at Mablethorpe. It could be a bit of a fun, sloppy closeout for the more experienced folks, but it won't be clean. The water temp is a considerable 3° above average, so that’s a bonus, but the waves just aren't worth getting too excited about. A 4ft wave of that short period is marginal, and with onshore wind, it’ll be a mess.
After that, the wind is forecast to howl from the north on the 24th, pushing 20 to 28 mph, which will just chop up anything left. The 25th and 26th settle down, but the swell disappears again. It's a blank run, plain and simple. This is one of those times where the ocean just has nothing to offer us.
Keep the board waxed and the wetsuit ready. It tends not to stay this bad for long, and a change is always just a storm away.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Thu afternoon, min 16°C on Tue night). Winds decreasing (fresh winds from the ESE on Tue afternoon, light winds from the SE by Wed night). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Warm (max 22°C on Fri afternoon, min 15°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | N 9 | N 9 | ESE 5 | ESE 5 | ESE 4 | N 7 | ESE 4 | SE 5 | N 10 | N 10 | N 9 | N 10 | N 9 | NNE 5 | N 9 | N 9 | NNE 8 | N 8 | NNE 5 | NNE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 57 | 39 | 22 | 32 | 26 | 4 | 25 | 22 | 2 | 17 | 7 | 7 | 7 | 9 | 6 | 6 | 13 | 5 | 9 | 33 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | cross-on | on | cross | cross-off | cross-on | cross | cross-on | cross-on | cross | cross | on | on | cross-on | cross-on | cross |
High Tide | 5:51PM5.03m | 6:06AM5.30m | 6:43PM5.28m | 6:52AM5.64m | 7:29PM5.43m | 7:35AM5.86m | 8:11PM5.46m | 8:16AM5.91m | 8:51PM5.37m | 8:55AM5.79m | 9:29PM5.17m | 9:34AM5.53m | 10:05PM4.90m | |||||||
Low Tide | 00:16AM0.93m | 12:43PM0.26m | 1:01AM0.71m | 1:28PM-0.08m | 1:42AM0.58m | 2:09PM-0.23m | 2:20AM0.55m | 2:48PM-0.19m | 2:56AM0.61m | 3:24PM0.03m | 3:31AM0.76m | 3:59PM0.38m | ||||||||
 |  | | | | |  |  | | |  |  | | | | |  |  | | | |
 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — |
 | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | 2 | — | — | — |
Temp °C | 19 | 17 | 24 | 27 | 25 | 28 | 33 | 29 | 24 | 22 | 19 | 16 | 17 | 16 | 18 | 18 | 17 | 16 | 16 | 14 |
Feels °C | 13 | 12 | 20 | 21 | 19 | 24 | 27 | 24 | 22 | 21 | 18 | 16 | 16 | 15 | 17 | 15 | 15 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | N 9 | N 9 | NNE 8 | NNE 8 | N 8 | ESE 4 | N 7 | N 7 | E 4 | N 10 | N 4 | N 10 | N 9 | NNE 5 | NNE 5 | NNE 5 | NNE 8 | N 8 | N 8 | NNE 8 |
| kJ | 57 | 39 | 22 | 13 | 4 | 6 | 1 | 1 | 2 | 8 | 1 | 7 | 7 | 9 | 5 | 5 | 13 | 1 | 1 | 33 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | N 7 | — | N 12 | SE 4 | N 12 | ENE 5 | — | — | E 3 | E 4 | E 4 | E 4 | N 8 | N 8 | — |
| kJ | — | — | — | — | — | 4 | — | 3 | 1 | 3 | 2 | — | — | 1 | 1 | 1 | 1 | 5 | 5 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 9 | N 10 | N 10 | N 9 | — | — | N 9 | N 9 | N 9 | N 8 | — | — | — |
| kJ | — | — | — | — | — | — | — | 1 | 2 | 17 | 7 | — | — | 6 | 6 | 6 | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 4 | SE 4 | ESE 5 | ESE 5 | ESE 4 | — | ESE 4 | SE 5 | NNW 3 | NNE 4 | — | NNE 3 | NE 4 | — | — | — | — | NNE 4 | NNE 5 | — |
| kJ | 11 | 19 | 22 | 32 | 26 | — | 25 | 22 | 2 | 7 | — | 2 | 3 | — | — | — | — | 5 | 9 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 300 | 298 | 312 | 153 | 113 | 338 | 500 | 73 | 353 | 673 | 531 | 574 | 574 | 498 | 492 | 563 | 544 | 500 | 508 | 87 |
Best forecast wave conditions in Lincolnshire | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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Information about the Mablethorpe Surf forecast
The above surf forecast table for Mablethorpe provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mablethorpe can be found by selecting the local surf guide option on the grey menu. Our Mablethorpe 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 (Mablethorpe) 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 Mablethorpe 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.
Mablethorpe is 20 km (12 miles) from Skegness. If you plan a holiday in Lincolnshire, look for hotels and other accommodation in Skegness. Skegness has rooms for a wide range of budgets as well as car hire and transport links.
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