Surf Forecasts:
Mablethorpe surf forecast from 11 Sep 2026:
- Most powerful swell: Friday 18 Sep, 7PM (local time) - 1.5ft (0.5m), 7s period, N swell with 27 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 7s and forecast to arrive on Friday (Sep 18) at 7PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Wednesday (Sep 16) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Fri 18th Sep) | 1.5ft (0.5m) 7s |
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 cookin'.
Honestly, mate, for the next week and a half, it's gonna be a bit of a tough grind. We're looking at a long stretch of tiny, weak surf that's barely gonna push a leaf across a puddle. Hang tight, because there's a glimmer of something better way down the track.
First off, the only spot we're talking about is Mablethorpe. It's an inconsistent, beginner-friendly beach, but for the first few days, the swell is flat-out missing. We're talking heights of 0.3ft to 1ft, with next to no energy in the water. The water is a balmy 64°F, which is a massive 5°F warmer than usual for this time of year – that's very unusual.
The wind is mostly offshore or cross-off, which would make ideal conditions... if there was any surf to ride. It'll be clean and pretty, but don't expect a wave. From Friday the 11th right through to the middle of the week starting the 22nd, the combined energy is so low it's almost a non-event. We get a tiny uptick on Wednesday the 16th with 2ft of swell, but it's still poor surf.
Then, hold onto your board. By Monday the 21st, we see a pulse of swell pop up, but the wind swings hard onshore from the East, ruining it. That builds into the end of the week. Thursday the 24th afternoon is the standout if we're being honest. We've got a 5ft swell from the NE, with wind still onshore, but the energy jumps to a moderate level. It's not perfect, but it's the most size we've seen. Friday the 25th hangs in there with 4ft and 4ft from the NE.
The absolute best bet, the one to circle on your calendar, is Saturday the 26th. The wind finally swings offshore – strong offshore at 28 mph in the morning and 22 mph in the afternoon – from the WNW. Swell drops a little to a clean 3ft from the ENE. It'll be very clean, but that strong wind will make it a battle to get out and heavy on the paddle. For the experienced crew, that's the window. Beginners, best sit that one out.
So, to sum it up: a whole lot of nothing for a long stretch, leading to a promising but windy finale on the 26th.
Stay frothy.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat afternoon. Warm (max 22°C on Sat afternoon, min 14°C on Fri night). Winds increasing (light winds from the WSW on Fri night, fresh winds from the WSW by Sat morning). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Tue morning. Warm (max 24°C on Mon afternoon, min 11°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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 | N 7 | N 7 | N 7 | N 6 | WSW 2 | — | N 4 | NE 4 | N 14 | N 13 | N 12 | N 12 | N 11 | N 11 | N 5 | N 5 | N 6 | N 6 | N 6 | NNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 4 | 4 | 1 | 1 | 0 | 0 | 2 | 5 | 4 | 14 | 12 | 11 | 10 | 9 | 15 | 13 | 18 | 6 | 3 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | off | off | cross-off | cross-on | cross | cross-off | off | cross-off | off | off | off | cross-off | off | cross-off | off | off | off |
High Tide | 7:10PM5.47m | 7:15AM5.87m | 7:46PM5.54m | 7:52AM5.89m | 8:19PM5.48m | 8:27AM5.76m | 8:51PM5.31m | 9:02AM5.50m | 9:22PM5.04m | 9:36AM5.13m | 9:53PM4.71m | 10:12AM4.71m | 10:25PM4.34m | ||||||||
Low Tide | 1:10PM-0.11m | 1:22AM0.54m | 1:46PM-0.19m | 1:56AM0.44m | 2:19PM-0.09m | 2:28AM0.44m | 2:50PM0.15m | 2:58AM0.55m | 3:20PM0.50m | 3:29AM0.75m | 3:51PM0.90m | 4:01AM1.04m | 4:23PM1.33m | ||||||||
 |  |  | |  |  | | | |  | |  |  | | | | |  | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — | — | 7:17 | — | — | 7:15 | — | — | 7:13 | — | — | 7:10 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | 6 | — | — | — | — | 1 | — | — | — |
Temp °C | 19 | 17 | 18 | 19 | 22 | 18 | 17 | 17 | 17 | 23 | 24 | 22 | 16 | 19 | 14 | 16 | 17 | 14 | 17 | 17 | 13 |
Feels °C | 17 | 15 | 16 | 14 | 19 | 16 | 16 | 16 | 16 | 21 | 22 | 21 | 13 | 15 | 10 | 12 | 15 | 10 | 11 | 11 | 8 |
Swell 1 Height (m) Direction Period (s) | N 7 | N 7 | N 7 | — | — | — | — | N 4 | NE 4 | NNE 4 | NNE 4 | N 12 | N 12 | N 11 | N 11 | N 10 | N 5 | N 6 | N 6 | N 6 | NNW 5 |
| kJ | 4 | 4 | 4 | — | — | — | — | 2 | 4 | 2 | 2 | 12 | 11 | 10 | 9 | 8 | 13 | 18 | 6 | 3 | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | — | N 7 | N 6 | — | — | — | N 16 | — | N 13 | NE 5 | — | — | — | — | N 10 | N 10 | N 9 | N 9 | N 9 |
| kJ | — | — | — | 1 | 1 | — | — | — | 5 | — | 14 | 1 | — | — | — | — | 8 | 2 | 2 | 2 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 4 | — | — | — | — | — | — | — | N 8 | N 14 | N 6 | N 5 | — | — | — | — | — | — | — | N 9 | — |
| kJ | 1 | — | — | — | — | — | — | — | 1 | 4 | 1 | 1 | — | — | — | — | — | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | WNW 2 | — | SSE 2 | SW 2 | SW 3 | WSW 2 | — | — | SE 3 | — | SW 3 | SSW 2 | SW 2 | — | NW 3 | N 5 | — | WSW 3 | WSW 3 | W 3 | WNW 3 |
| kJ | 1 | — | 1 | 1 | 3 | 1 | — | — | 2 | — | 2 | 1 | 1 | — | 2 | 15 | — | 2 | 5 | 4 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 314 | 325 | 318 | 476 | 447 | 342 | 350 | 384 | 279 | 425 | 422 | 436 | 338 | 1680 | 338 | 350 | 582 | 772 | 653 | 653 | 317 |
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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