
Surf Forecasts:
Mablethorpe surf forecast from 15 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 7AM (local time) - 2ft (0.6m), 8s period, N swell with 52 kJ wave energy.
Best Forecast Surf Conditions for Mablethorpe this week:
The most powerful waves expected at Mablethorpe in the next 16 days are 0.6m 8s and forecast to arrive on Thursday (Sep 17) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Sep 17) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Thu 17th Sep) | 2ft (0.6m) 8s |
Table - best surf conditions forecast for Mablethorpe over the next 16 days.
The Lowdown
Alright, it's Rusty here. Let’s be straight with you: we’ve got a 16-day window and, well... it’s a real quiet one. The whole period is looking flat as a pancake, with nothing but tiny, weak signals. There's a big gap of no real surf to speak of from now, stretching all the way through. The first real suggestion of any energy doesn’t pop up until the very tail end of the period, and even then, it’s not exactly going to get the heart racing.
The only break on the radar is Mablethorpe, and it’s a beginner spot that’s "inconsistent" at the best of times. Honestly, for the first two weeks, you’re looking at swell heights barely scraping 0.7 ft to 1 ft, with periods all over the shop – mostly short-period slop. The water temp is sitting at 64 °F, which is a whopping 5 °F warmer than normal. That’s seriously unusual for this time of year, almost like the ocean forgot the season.
Let’s run through it. Tuesday the 15th is a write-off with 0.7 ft of northerly swell and a 12-second period, but it’s weak. The combined energy is just 11 (weak energy). Wednesday the 16th afternoon goes glassy, but the swell is a measly 1 ft with a pathetic 5-second period. Thursday the 17th shows a slight bump: 2 ft from the north with an 8-second period and a combined energy of 52 (still weak). The wind is offshore from the W at 22 mph, so it’ll be clean, but the wave quality is still rated as poor. The rest of that week and the next are just variations on the same theme – tiny, weak, and poor.
Now, the best we’ve got on offer – and I say this with a heavy heart – is a glimmer at the very end. On Wednesday the 30th of September, we finally see some combined energy creep into three-digit territory. The morning session shows 2 ft from the north, a 10-second period, and a combined energy of 132 (moderate wave energy). The wind is a whisper from the NNE at just 3 mph, making it light cross-onshore with small wind ripples. The afternoon keeps the 2 ft from the north, 10-second period, and a combined energy of 108 (moderate wave energy), with a light onshore breeze from the East at 6 mph.
Is it a standout? Only by default. For a beginner at Mablethorpe, that 2 ft might be something to play on, but it’s still tiny and the quality is marked as poor. Don’t expect barrels. This is a spot for a longboard or a foamie on a day when you just need to get wet. But honestly, for the next two weeks, leave the board in the car and go for a walk. It’s that kind of outlook.
Stay patient, Rusty out.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 20°C on Tue morning, min 11°C on Thu night). Winds increasing (calm on Wed afternoon, fresh winds from the W by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sat morning, min 12°C on Sat night). Winds decreasing (fresh winds from the W on Sat afternoon, light winds from the WNW by Sun night). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 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 12 | N 11 | N 11 | N 10 | N 5 | N 8 | N 8 | NNE 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 6 | N 6 | N 8 | N 8 | N 7 |
Wave Graph | |||||||||||||||||||||
11 | 9 | 9 | 2 | 9 | 45 | 52 | 22 | 11 | 11 | 11 | 6 | 5 | 1 | 1 | 1 | 3 | 2 | 1 | 1 | 1 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | glassy | cross-off | cross-off | off | off | off | cross-off | cross-off | off | off | off | cross-off | cross-off | off | off | on | cross-off |
High Tide | 9:22PM5.04m | 9:36AM5.13m | 9:53PM4.71m | 10:12AM4.71m | 10:25PM4.34m | 10:51AM4.25m | 11:05PM3.97m | 11:45AM3.81m | 00:12AM3.64m | 1:28PM3.52m | 2:10AM3.56m | 3:17PM3.58m | 3:39AM3.81m | ||||||||
Low Tide | 3:20PM0.50m | 3:29AM0.75m | 3:51PM0.90m | 4:01AM1.04m | 4:23PM1.33m | 4:36AM1.39m | 4:59PM1.74m | 5:19AM1.77m | 5:48PM2.12m | 6:24AM2.11m | 7:06PM2.39m | 8:19AM2.23m | 9:13PM2.36m | ||||||||
6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | |
— | 7:15 | — | — | 7:13 | — | — | 7:10 | — | — | 7:07 | — | — | 7:06 | — | — | 7:02 | — | — | 7:00 | — | |
mm | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 15 | 17 | 17 | 15 | 18 | 17 | 14 | 16 | 19 | 17 | 21 | 20 | 16 | 17 | 19 | 15 | 20 | 20 | 20 |
Feels °C | 15 | 14 | 11 | 15 | 16 | 11 | 11 | 9 | 9 | 10 | 14 | 14 | 15 | 12 | 13 | 13 | 15 | 12 | 19 | 18 | 20 |
Swell 1 Height (m) Direction Period (s) | S 4 | N 11 | N 11 | N 10 | N 5 | N 8 | N 8 | NNE 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 6 | N 6 | — | — | N 7 |
1 | 9 | 9 | 2 | 9 | 45 | 52 | 22 | 11 | 11 | 11 | 6 | 5 | 1 | 1 | 1 | 3 | 2 | — | — | 1 | |
Swell 2 Height (m) Direction Period (s) | N 12 | SE 4 | SW 4 | — | N 9 | — | — | — | N 5 | N 8 | — | — | — | — | — | — | — | N 9 | N 8 | N 8 | — |
11 | 1 | 1 | — | 6 | — | — | — | 1 | 11 | — | — | — | — | — | — | — | 1 | 1 | 1 | — | |
Swell 3 Height (m) Direction Period (s) | SSE 4 | SE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 3 | WNW 3 | WNW 3 | NNW 5 | — | WSW 2 | WSW 3 | W 3 | W 3 | WSW 3 | SW 3 | SSW 3 | SW 3 | WSW 3 | — | NW 3 | — | — | — | — | SSE 3 |
4 | 3 | 4 | 17 | — | 1 | 4 | 4 | 5 | 4 | 2 | 6 | 3 | 3 | — | 1 | — | — | — | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 653 | 674 | 350 | 318 | 73 | 6 | 218 | 653 | 359 | 498 | 498 | 498 | 325 | 582 | 384 | 325 | 325 | 338 | 361 | 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)
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.










