Surf Forecasts:
Mablethorpe surf forecast from 15 Aug 2026:
- Most powerful swell: Friday 21 Aug, 4PM (local time) - 2.5ft (0.7m), 6s period, N swell with 38 kJ wave energy.
Best Forecast Surf Conditions for Mablethorpe this week:
The most powerful waves expected at Mablethorpe in the next 16 days are 0.7m 6s and forecast to arrive on Friday (Aug 21) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Friday (Aug 21) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Fri 21st Aug) | 2.5ft (0.7m) 6s |
Table - best surf conditions forecast for Mablethorpe over the next 16 days.
The Lowdown
Alright, I’m gonna be straight with you. This is not a good outlook for Mablethorpe.
We’re looking at a 16-day window here, and there’s basically nothing in it for a surfer. The swell never gets going. For almost the entire run, wave heights are stuck between 0.3ft and 2ft, and combined swell energy barely touches 50, which is weak energy (50).
The pattern is grim. From August 15th through to the end of the month, it’s all tiny, weak swell. The only period that even gets close to rideable is around the 21st and 22nd of August. On Friday the 21st, we see a morning bump to 2ft from the north, with a period of 6 seconds – short period windswell. Combined energy reads 29. Winds are cross-offshore from the north, so it’ll be clean. But 2ft and short period on an inconsistent beach break? It’s a knee-high scramble at best.
Saturday the 22nd holds similar energy (33 to 50), with 2ft to 2ft, but winds swing to cross-shore and cross-onshore, adding chop to an already tiny wave. Not worth the drive.
The rest of the window? Dead. From the 23rd onward, we drop back to 0.3ft to 2ft, with energy readings mostly in the single digits. A few mornings on the 19th and 20th have fresh offshore winds, but on 0.7ft swell, that’s just a clean lake.
Mablethorpe itself is an inconsistent, beginner-friendly beach break. It’s rarely breaking with any quality, and this forecast is a textbook example of a flat spell. The guidance says the optimal swell direction is north, and when the tiny pulses do arrive, they’re from the north – but there’s just no size or energy behind them.
If you’re looking for a silver lining, on Wednesday the 19th, we see the biggest swell of the run: 1ft from the north-northeast with a period of 8 seconds, energy reading 22. Winds are offshore from the west at 12-16 mph, so it’ll be clean. That’s about as good as it gets – and it’s not good.
Water temperature is average for the time of year, no anomaly flagged, so at least it’s not freezing when you’re sitting there on a foamie, catching nothing.
Honestly, this is a kite-surfing wind window. If the wind is howling from the west or northwest at 16 mph or more, that might be interesting for the kite crew. For a paddle surfer? Leave the board in the van.
Hang in there, the forecasts can change. But right now, it’s a 16-day flat spell in a row.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Fri night, min 15°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Warm (max 23°C on Tue afternoon, min 13°C on Wed night). Winds increasing (light winds from the SSE on Mon night, fresh winds from the WSW by Thu morning). | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 10 | N 9 | N 9 | N 9 | N 9 | N 8 | N 8 | N 5 | N 8 | N 8 | N 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | N 8 | N 7 | N 7 | N 6 | N 6 | NNE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 2 | 4 | 5 | 5 | 19 | 21 | 22 | 13 | 4 | 4 | 4 | 29 | 38 | 13 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | glassy | glassy | cross | cross-off | on | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross | cross |
High Tide | 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 | 11:42AM4.29m | 00:12AM3.91m | 12:45PM3.91m | 1:25AM3.68m | |||||||
Low Tide | 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 | 5:18AM1.55m | 5:48PM1.69m | 6:05AM1.86m | 6:42PM2.05m | ||||||||
 |  |  |  | |  | | |  | | |  | | | | |  | | | | | |
 | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:46 | — | — | 5:48 | — | — |
 | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:14 | — |
mm | — | — | — | — | — | — | — | — | 3 | — | — | 2 | — | — | — | — | 2 | 1 | — | — | — |
Temp °C | 18 | 17 | 16 | 18 | 19 | 18 | 17 | 18 | 16 | 22 | 23 | 17 | 20 | 20 | 16 | 18 | 18 | 15 | 15 | 15 | 14 |
Feels °C | 15 | 14 | 16 | 18 | 18 | 17 | 16 | 16 | 15 | 20 | 19 | 14 | 16 | 16 | 12 | 11 | 12 | 13 | 10 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | N 10 | N 9 | N 5 | NNE 5 | N 5 | NNE 4 | N 8 | N 5 | N 8 | N 8 | N 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | N 8 | N 7 | N 7 | — | — | NNE 6 |
| kJ | 7 | 6 | 2 | 2 | 2 | 2 | 5 | 2 | 4 | 5 | 5 | 19 | 21 | 22 | 13 | 4 | 4 | 4 | — | — | 10 |
Swell 2 Height (m) Direction Period (s) | — | — | N 9 | N 9 | N 9 | N 8 | — | N 8 | — | N 6 | NNE 6 | — | — | — | — | — | NW 4 | — | — | — | NNE 8 |
| kJ | — | — | 6 | 6 | 6 | 5 | — | 1 | — | 1 | 3 | — | — | — | — | — | 1 | — | — | — | 13 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | NNE 4 | — | — | — | — | — | — | — | WSW 2 | WNW 3 | — | W 2 | W 3 | WSW 2 | W 3 | W 3 | WNW 2 | N 6 | N 6 | — |
| kJ | 4 | 4 | — | — | — | — | — | — | — | 1 | 3 | — | 1 | 2 | 1 | 4 | 5 | 1 | 29 | 38 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 635 | 437 | 433 | 485 | 544 | 457 | 457 | 459 | 459 | 631 | 682 | 153 | 222 | 508 | 498 | 446 | 582 | 337 | 266 | 433 | 365 |
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