Surf Forecasts:
Mablethorpe surf forecast from 28 Aug 2026:
- Most powerful swell: Friday 28 Aug, 1PM (local time) - 1.5ft (0.5m), 6s period, NE swell with 18 kJ wave energy.
Best Forecast Surf Conditions for Mablethorpe this week:
The most powerful waves expected at Mablethorpe in the next 16 days are 0.5m 6s and forecast to arrive on Friday (Aug 28) at 1PM. Winds are predicted to be cross-offshore 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 (Sep 03) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Fri 28th Aug) | 1.5ft (0.5m) 6s |
Table - best surf conditions forecast for Mablethorpe over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's on offer for Mablethorpe.
To be honest, the first week and a half is a real grind. We're staring at a long stretch of flat, gutless surf with barely any energy. The water is sitting at 67°F, which is a very unusual 7°F warmer than normal for this time of year – the sea feels like it's forgotten the season.
From Friday, August 28th right through to the start of September, it's all tiny, messy, and not worth a paddle. The swell is barely a ripple, with combined energy struggling to get past 25 (weak energy). You'll see a lot of offshore winds, but when the swell is that small, it doesn't matter how clean it is.
Things perk up a little around Monday, September 7th. The afternoon shows a little lift with a 3ft wave from the north, but it's still pretty ordinary.
The real standout window is shaping up for Tuesday, September 8th. The morning brings a solid 5ft north swell, with a moderate offshore wind from the WNW. The combined energy jumps to 302 (moderate wave energy), and it's looking like a genuine good session. This is the pick of the forecast for Mablethorpe, but with a 7-second period, it's a short-period windswell, so it'll be a bit lumpy and not the cleanest groundswell.
The following day, Wednesday, September 9th, builds on that. The afternoon sees the swell hold at 7ft from the north, the period stretching to 10 seconds, and the combined energy cranking up to 724 (strong wave energy). Winds are light offshore, and the forecast is for very good surf conditions. That's a big one. At 7ft, it's getting a bit punchy for beginners, but for the experienced crew, that's the day to mark.
Thursday, September 10th is still solid, with a 5ft north swell in the morning and glassy conditions. That's clean, but the period is a touch shorter at 9 seconds.
The window closes quickly after that. The swell drops off fast, and by Friday, September 11th, it's blown out by strong winds and rain. The rest of the run is flat and forgettable.
So, to wrap it up: the first week is a write-off. The best bets are Tuesday, September 8th and Wednesday, September 9th. If you're an experienced surfer, make Wednesday your target for the biggest, most powerful waves of the outlook. For everyone else, the Tuesday morning session is cleaner and more manageable.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 22°C on Fri afternoon, min 14°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | ENE 6 | NE 6 | NE 7 | NE 7 | NNE 7 | N 7 | N 7 | N 6 | N 6 | N 7 | N 7 | N 7 | N 7 | N 6 | N 8 | N 7 | N 7 | N 12 | N 11 | N 11 | N 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 25 | 16 | 13 | 13 | 5 | 9 | 8 | 3 | 3 | 4 | 4 | 8 | 14 | 7 | 10 | 4 | 4 | 3 | 2 | 2 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 7:19PM5.07m | 7:22AM5.55m | 7:50PM5.24m | 7:53AM5.70m | 8:21PM5.33m | 8:26AM5.73m | 8:53PM5.31m | 9:01AM5.65m | 9:28PM5.18m | 9:39AM5.44m | 10:06PM4.95m | 10:22AM5.12m | 10:51PM4.62m | ||||||||
Low Tide | 1:19PM0.36m | 1:26AM0.75m | 1:51PM0.13m | 1:58AM0.60m | 2:23PM0.02m | 2:31AM0.54m | 2:56PM0.05m | 3:05AM0.57m | 3:30PM0.22m | 3:40AM0.69m | 4:07PM0.51m | 4:19AM0.91m | 4:49PM0.90m | ||||||||
 |  |  |  | |  | | | | | | | | | | | |  | | |  | |
 | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — |
 | — | 7:58 | — | — | 7:55 | — | — | 7:53 | — | — | 7:51 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — |
mm | — | 1 | — | — | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 21 | 22 | 17 | 20 | 17 | 16 | 19 | 21 | 17 | 19 | 21 | 16 | 19 | 20 | 19 | 18 | 20 | 18 | 19 | 25 | 21 |
Feels °C | 17 | 17 | 14 | 16 | 16 | 15 | 17 | 17 | 13 | 15 | 16 | 12 | 15 | 16 | 16 | 16 | 16 | 14 | 13 | 19 | 15 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | NE 6 | NE 7 | NE 7 | NNE 7 | N 7 | N 7 | N 6 | N 6 | N 7 | N 7 | N 7 | N 7 | N 6 | N 8 | N 7 | N 7 | N 8 | N 11 | N 11 | N 10 |
| kJ | 25 | 16 | 13 | 13 | 5 | 9 | 8 | 3 | 3 | 4 | 4 | 8 | 14 | 7 | 10 | 4 | 4 | 1 | 2 | 2 | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | ENE 6 | — | N 6 | ESE 6 | SE 4 | N 4 | — | SE 4 | S 4 | N 6 | — | — | N 8 | — | — | N 12 | N 7 | N 7 | NNW 6 |
| kJ | — | — | 4 | — | 3 | 3 | 1 | 2 | — | 1 | 1 | 7 | — | — | 1 | — | — | 3 | 1 | 1 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | N 6 | — | NE 6 | N 6 | — | — | N 7 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 1 | — | 2 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 2 | WSW 3 | SW 3 | S 3 | — | — | SSE 2 | S 3 | WSW 3 | W 3 | W 3 | W 3 | — | — | SW 3 | SW 3 | SW 3 | WSW 3 | W 3 | WSW 3 |
| kJ | — | 2 | 2 | 1 | 2 | — | — | 1 | 1 | 1 | 4 | 5 | 1 | — | — | 2 | 2 | 10 | 3 | 5 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 113 | 149 | 116 | 157 | 157 | 325 | 396 | 396 | 321 | 638 | 325 | 278 | 153 | 653 | 498 | 485 | 583 | 582 | 445 | 656 | 325 |
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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