Surf Forecasts:
Mablethorpe surf forecast from 19 Aug 2026:
- Best quality surf: Saturday 22 Aug, 4AM (local time) - 4ft (1.2m), 8s period, N swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 10AM (local time) - 5ft (1.5m), 8s period, N swell with 291 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 1AM (local time) - 3.5ft (1.0m), 8s period with NNE swell.
Best Forecast Surf Conditions for Mablethorpe this week:
The surf forecast for Mablethorpe over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 1AM. The primary swell is predicted to be 1.0m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mablethorpe in the next 16 days are 1.5m 8s and forecast to arrive on Friday (Aug 21) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Tuesday (Aug 25) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 22nd Aug) | 3.5ft (1.0m) 8s |
| Best Surf | 4AM (Sat 22nd Aug) | 4ft (1.2m) 8s |
| Most Powerful | 10AM (Fri 21st Aug) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Mablethorpe over the next 16 days.
The Lowdown
Alright, let me be straight with you. Over the next two and a half weeks, Mablethorpe is looking pretty flat and sad. There’s no proper surf on the cards here. The first time we see anything even close to surfable is Sunday the 23rd of August, and even then, it’s barely a ripple.
The first half of this forecast period is a write-off. From now until Saturday the 22nd, the swell stays tiny – under 2ft – with weak wave energy (most days under 58). The winds are mostly cross or onshore, making a mess of things. The best we get in that first week is a clean morning or two, but with next to no swell, there’s nothing to ride.
Sunday morning the 23rd is the first moment worth a look, but don’t get your hopes up. Mablethorpe (a beginner spot that’s inconsistent) sees a small 2ft swell from the NNE, with a period of 8 seconds. The wind turns light offshore from the west, so the surface will be clean. The combined energy is only 70, which is weak. It’s surfable, but only just – think longboard or a foamie, and even then, it’ll be a struggle to catch anything decent. The water temp is about average for the time of year, nothing unusual there.
After that, it goes back to square one. From Monday the 24th right through to the end of the forecast period on the 3rd of September, we’re looking at tiny, weak swells – mostly under 2ft – and combined energy barely scraping into double digits. A few mornings see clean, offshore winds (like Wednesday the 26th and Friday the 28th), but with practically no swell, you’d be better off doing something else. The only thing worth mentioning is a glassy afternoon on the 1st of September, but with a 1ft swell and period of just 5 seconds, it’s not going to produce anything worth paddling for.
Overall, this is a long, flat stretch. For a break that’s already inconsistent, a blank run like this isn’t surprising. If you’re desperate, Sunday morning the 23rd is your only real shot, and even then, keep the expectations low. With the combination of tiny swell and onshore winds for most of the period, this setup looks more interesting for kite surfing than paddle surfing on the windy days.
Stay patient, and check back – forecasts can change.
Rusty
Short Range ForecastModerate rain (total 15mm), heaviest on Thu afternoon. Warm (max 20°C on Wed morning, min 12°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Sun morning, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 8 | N 8 | N 7 | NNE 7 | NNE 8 | N 6 | N 8 | NNE 8 | NNE 8 | N 8 | N 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | SE 4 | NNE 7 | ESE 3 | ESE 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 11 | 10 | 9 | 18 | 58 | 72 | 291 | 240 | 147 | 140 | 134 | 109 | 70 | 68 | 35 | 18 | 15 | 4 | 5 | 6 | 24 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | off | on | cross | cross-on | on | cross-on | cross-on | cross-on | on |
High Tide | 10:54AM4.72m | 11:22PM4.23m | 11:42AM4.29m | 00:12AM3.91m | 12:45PM3.91m | 1:25AM3.68m | 2:13PM3.71m | 2:55AM3.67m | 3:40PM3.76m | 4:09AM3.89m | 4:45PM3.98m | 5:03AM4.24m | 5:34PM4.27m | ||||||||
Low Tide | 4:40AM1.24m | 5:08PM1.26m | 5:18AM1.55m | 5:48PM1.69m | 6:05AM1.86m | 6:42PM2.05m | 7:12AM2.13m | 8:06PM2.26m | 9:03AM2.18m | 9:56PM2.18m | 10:39AM1.91m | 11:02PM1.89m | 11:32AM1.51m | 11:45PM1.56m | |||||||
 |  |  | | | | | |  | | |  | |  | | | | |  | | | |
 | 5:43 | — | — | 5:46 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — |
 | — | 8:19 | — | — | 8:16 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — |
mm | — | 1 | 2 | 2 | 4 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 20 | 20 | 17 | 19 | 16 | 14 | 15 | 15 | 14 | 15 | 14 | 14 | 18 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 16 |
Feels °C | 18 | 19 | 16 | 18 | 12 | 10 | 10 | 9 | 10 | 11 | 9 | 11 | 17 | 13 | 13 | 13 | 12 | 12 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | N 7 | NNE 7 | — | — | — | — | — | — | — | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NNE 6 | ESE 4 | N 7 | N 7 |
| kJ | 11 | 10 | 9 | 18 | — | — | — | — | — | — | — | 109 | 70 | 68 | 35 | 18 | 15 | 4 | 2 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 8 | NNE 7 | N 7 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 8 | N 6 | N 8 | NNE 8 | NNE 8 | N 8 | N 8 | — | — | — | SE 3 | S 3 | SE 3 | SE 4 | — | ESE 3 | ESE 4 |
| kJ | — | — | — | — | 58 | 72 | 291 | 240 | 147 | 140 | 134 | — | — | — | 3 | 2 | 2 | 3 | — | 6 | 24 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 485 | 298 | 308 | 50 | 350 | 266 | 220 | 220 | 0 | 182 | 148 | 0 | 0 | 300 | 49 | 457 | 398 | 457 | 407 | 363 | 263 |
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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