Surf Forecasts:
Mablethorpe surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 1AM (local time) - 3ft (0.9m), 8s period, NNE swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 10AM (local time) - 4.5ft (1.3m), 8s period, N swell with 196 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 1AM (local time) - 3ft (0.9m), 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 Sunday (Aug 23) at 1AM. The primary swell is predicted to be 0.9m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Mablethorpe in the next 16 days are 1.3m 8s and forecast to arrive on Saturday (Aug 22) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Thursday (Aug 27) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 23rd Aug) | 3ft (0.9m) 8s |
| Best Surf | 1AM (Sun 23rd Aug) | 3ft (0.9m) 8s |
| Most Powerful | 10AM (Sat 22nd Aug) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Mablethorpe over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what Mablethorpe has in store for us over the next couple of weeks. I’ll be honest, it’s a slow start, but there’s a light at the end of the tunnel.
The water’s sitting at a warm 68°F, which is a good 8°F warmer than normal for this time of year. That’s a bonus right now.
The next week and a half is mostly gutless. We’ve got a lot of cross-shore rubbish to sift through. The only real chance in this stretch is the morning of Sunday the 23rd. The swell will be a weak 3ft from the NNE with an 8-second period, and the energy is a low 99. It’s surfable, but just barely. A light cross-off from the SSW will keep it clean. After that, it just flatlines for over a week. From the 24th right through to the 3rd of September, there’s basically nothing worth paddling out for. It’s a proper blank spell, and it’s just part of the game here sometimes.
Now, for the good news. We’ve got a real pulse of swell showing up for the morning of Thursday, the 4th of September. This is the standout of the whole forecast. We’re looking at a solid 6ft of north swell with a 9-second period, and the combined energy jumps all the way up to a strong 476. The wind is light from the SSW, making it a clean cross-off. This is a proper day for it. It’s a while away, so treat it as promising rather than a guarantee, but it’s the one to circle on the calendar. The afternoon will get a bit messy with a cross-on breeze, so hit it early. The next morning, Saturday the 5th, also has some punch. A 6ft north swell with an 8-second period and a cross-off wind, packing a combined energy of 637. It’s a bit more raw, but still a good time to be out. That kind of size is pushing it for the beginners, but anyone with a bit of experience will be in for a treat.
Hold tight, it’s gonna be a wait, but it might just be worth it.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Very mild (max 17°C on Sun morning, min 13°C on Sat night). Winds decreasing (fresh winds from the N on Fri afternoon, calm by Sat night). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu morning. Warm (max 21°C on Wed afternoon, min 15°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 8 | N 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | E 5 | ENE 6 | ENE 6 | E 5 | ENE 6 | NE 6 | NE 6 | NE 6 | ENE 5 | NE 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 181 | 149 | 196 | 163 | 119 | 90 | 75 | 47 | 29 | 15 | 36 | 80 | 69 | 28 | 30 | 29 | 16 | 8 | 3 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | glassy | cross-off | on | on | cross-on | on | on | on | on | cross | cross-off | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 1:25AM3.68m | 2:13PM3.71m | 2:55AM3.67m | 3:40PM3.76m | 4:09AM3.89m | 4:45PM3.98m | 5:03AM4.24m | 5:34PM4.27m | 5:44AM4.63m | 6:13PM4.57m | 6:19AM5.00m | 6:47PM4.84m | ||||||||
Low Tide | 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 | 12:11PM1.09m | 00:20AM1.25m | 12:46PM0.69m | 00:54AM0.97m | |||||||
 |  |  | |  |  | | | | | |  | |  | | |  |  |  | | |
 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — |
 | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 8 | — |
Temp °C | 15 | 15 | 15 | 15 | 14 | 17 | 17 | 16 | 16 | 17 | 16 | 17 | 17 | 17 | 19 | 21 | 21 | 19 | 18 | 16 |
Feels °C | 9 | 10 | 11 | 11 | 12 | 15 | 14 | 14 | 13 | 14 | 12 | 13 | 14 | 16 | 17 | 21 | 19 | 19 | 16 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NNE 6 | — | — | E 5 | ENE 6 | NE 6 | NE 6 | NE 6 | ENE 5 | NE 6 |
| kJ | — | — | — | — | 119 | 90 | 75 | 47 | 29 | 15 | 14 | — | — | 28 | 30 | 29 | 16 | 8 | 3 | 6 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 5 | NNE 5 | — | SE 4 | — | NE 7 | N 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 16 | 10 | — | 7 | — | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 5 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Wind waves Height (m) Direction Period (s) | N 7 | N 8 | N 8 | NNE 8 | — | — | — | — | — | ENE 3 | E 5 | ENE 6 | ENE 6 | — | — | ESE 3 | SSE 4 | SE 3 | SSW 3 | W 3 |
| kJ | 181 | 149 | 196 | 163 | — | — | — | — | — | 2 | 36 | 80 | 69 | — | — | 4 | 3 | 5 | 12 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 220 | 220 | 182 | 220 | 0 | 0 | 297 | 87 | 457 | 461 | 287 | 457 | 457 | 102 | 6 | 220 | 116 | 157 | 365 | 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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