Surf Forecasts:
Mablethorpe surf forecast from 13 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 7AM (local time) - 4.5ft (1.3m), 6s period, NNW swell with 117 kJ wave energy.
Best Forecast Surf Conditions for Mablethorpe this week:
The most powerful waves expected at Mablethorpe in the next 16 days are 1.3m 6s and forecast to arrive on Thursday (Aug 20) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Thursday (Aug 20) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Thu 20th Aug) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Mablethorpe over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cooking.
Honestly, it’s a pretty quiet stretch ahead. The first week or so is going to be a write-off for any proper waves. We’re looking at tiny, weak, short-period slop for days on end. The swell energy is barely registering for most of the first eight days, with values as low as 4 to 45 – that’s weak stuff. We’ve got a mix of onshore and cross-shore winds making even these ankle-biters look messy. There’s a gap of flat or near-flat conditions from now until around the 20th of August.
The first real glimmer of hope comes on the 20th of August. The swell energy jumps to a moderate 299, with waves pushing up to 5.2ft from the north. But here’s the rub – the period is only 8 seconds, so it’s a short, choppy windswell, and the wind is a cross-shore breeze from the NNE, churning up a cross-chop. It’s not clean, but it’s the first time the ocean shows a pulse. A consistent spot like Mablethorpe (United Kingdom) might offer some lumpy, shouldery walls for the keen, but this is more of a paddle practice session than a gem.
For a true standout, you’ve got to look way down the line. The 21st of August sees slightly smaller surf at 3.6ft from the NNE, but the energy drops (189) and the wind turns cross-onshore Friday afternoon, chopping it up again. Nothing to get excited about here either.
The one that catches my eye is the morning of the 24th of August. Now we’re talking light cross-offshore winds from the SSW, keeping things clean. The swell is only 2.3ft from the east, period is short at 5 seconds, and the energy is weak (44). It’s not a high-performance day, but with clean lines and gentle winds, a longboarder could have a little cruise at Mablethorpe. But honestly, for the whole 16 days, nothing here is a true standout. The wind is often messy, the swell is tiny, and the quality is poor. The setup looks more interesting for kite surfing than paddle surfing on most of those days with cross-shore wind and modest swell.
The water temperature? It’s about average for the time of year. No reason to grab a thicker suit than usual.
Short Range ForecastMostly dry. Warm (max 30°C on Thu afternoon, min 16°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon afternoon. Warm (max 25°C on Tue afternoon, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | N 7 | ESE 3 | E 5 | N 10 | N 10 | N 11 | N 10 | N 9 | N 9 | N 9 | N 9 | N 8 | SSE 3 | N 5 | N 9 | NNE 8 | NNE 8 | N 6 | NNE 8 | NNE 8 | NNE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 6 | 8 | 2 | 8 | 9 | 45 | 6 | 6 | 6 | 6 | 1 | 3 | 2 | 6 | 23 | 13 | 21 | 11 | 13 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross-off | on | cross | cross | cross-on | cross | cross | on | on | cross | cross-off | off | off | off | cross-off | off | cross | cross |
High Tide | 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 | 10:13AM5.15m | 10:42PM4.58m | 10:54AM4.72m | 11:22PM4.23m | |||||||
Low Tide | 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 | 4:05AM0.97m | 4:33PM0.81m | 4:40AM1.24m | 5:08PM1.26m | ||||||||
 |  |  | | |  | | | |  | | | |  | | | |  | | |  | |
 | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — |
 | — | 8:31 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 3 | — | — | — |
Temp °C | 28 | 30 | 29 | 25 | 24 | 21 | 17 | 18 | 16 | 17 | 18 | 16 | 20 | 16 | 17 | 21 | 25 | 22 | 20 | 17 | 15 |
Feels °C | 24 | 24 | 23 | 24 | 22 | 21 | 15 | 16 | 15 | 16 | 16 | 14 | 18 | 15 | 15 | 19 | 25 | 21 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | E 4 | N 7 | E 5 | E 4 | N 10 | E 4 | — | N 9 | N 4 | N 5 | N 9 | N 8 | N 5 | N 5 | N 9 | NNE 8 | N 5 | N 6 | NNE 8 | NNE 8 | NNE 8 |
| kJ | 3 | 1 | 7 | 1 | 8 | 1 | — | 6 | 2 | 2 | 6 | 1 | 2 | 2 | 6 | 23 | 9 | 21 | 11 | 13 | 11 |
Swell 2 Height (m) Direction Period (s) | N 7 | — | N 7 | N 10 | — | N 11 | — | — | N 9 | N 9 | N 4 | — | N 8 | N 8 | NNE 6 | — | NNE 8 | — | NE 6 | NE 5 | SSW 4 |
| kJ | 4 | — | 1 | 2 | — | 9 | — | — | 6 | 6 | 2 | — | 1 | 1 | 4 | — | 13 | — | 1 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | N 12 | N 8 | — | N 9 | — | — | E 4 | E 4 | E 4 | — | — | N 10 | — | — | — | — | — | SE 6 | — |
| kJ | — | — | 3 | 1 | — | 6 | — | — | 1 | 1 | 1 | — | — | 2 | — | — | — | — | — | 1 | — |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | SE 4 | — | E 4 | — | N 10 | NNE 3 | — | — | — | E 4 | SSE 3 | SW 3 | WSW 2 | NW 3 | — | SE 3 | SW 3 | WSW 3 | W 3 |
| kJ | — | 6 | 8 | — | 3 | — | 45 | 2 | — | — | — | 1 | 3 | 4 | 1 | 2 | — | 4 | 6 | 7 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 334 | 457 | 106 | 367 | 433 | 350 | 635 | 655 | 498 | 494 | 492 | 544 | 544 | 504 | 274 | 73 | 50 | 351 | 350 | 281 | 87 |
Best forecast wave conditions in Lincolnshire | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mablethorpe surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest