Surf Forecasts:
Aberystwyth harbour trap surf forecast from 17 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 7PM (local time) - 5ft (1.5m), 6s period, WSW swell with 167 kJ wave energy.
Best Forecast Surf Conditions for Aberystwyth harbour trap this week:
The most powerful waves expected at Aberystwyth harbour trap in the next 16 days are 1.5m 6s and forecast to arrive on Wednesday (Aug 19) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Saturday (Aug 22) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Wed 19th Aug) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Aberystwyth harbour trap over the next 16 days.
The Lowdown
Alright, I’m looking at what we’ve got for Aberystwyth harbour trap, and it’s a tough picture. Over this whole 16-day stretch, there is barely a single wave worth chasing. Nearly everything is flagged as “poor surf conditions,” so we’re talking a massive drought from now, the 17th, all the way through to the 30th of August before we even see something that’s just “surfable but very ordinary.”
For a reef break that works best with a SW swell, there is just no energy coming in. The early days show tiny little 0.3 ft to 0.7 ft waves with short periods and onshore winds – not even worth thinking about.
The best of a bad lot shows up on Sunday the 30th of August. A 4 ft swell from the WSW, with a period of 6 seconds (short period, sloppy), and combined energy at 128 – that’s moderate energy. The wind will be light and cross-off from the ENE, so it should be clean on the surface. Water temp is about average for this time of year, nothing unusual. But the description says “surfable waves but very ordinary conditions,” so keep your hopes low.
There’s another chance on Monday the 31st of August, with a 4 ft swell from the W and a light cross-off breeze from the S. Again, it’s “surfable but ordinary.” At 5 seconds period, it’s still junky.
It’s a total blank run, mate. For this part of the coast, long flat spells like this aren’t that rare. Leave the wetsuit hanging, maybe grab a coffee, and hope the next forecast brings something better.
- Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Wed afternoon. Very mild (max 18°C on Mon afternoon, min 14°C on Tue night). Winds increasing (light winds from the WNW on Mon morning, fresh winds from the WSW by Wed morning). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Very mild (max 17°C on Thu morning, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | W 5 | WSW 5 | SW 4 | W 6 | WSW 6 | W 4 | W 5 | WSW 6 | W 5 | WSW 6 | NW 5 | NNW 4 | NW 4 | NW 4 | NNW 5 | NNW 4 | NW 4 | W 15 | NW 4 | W 14 | W 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 5 | 19 | 47 | 20 | 19 | 64 | 104 | 97 | 29 | 41 | 7 | 4 | 5 | 23 | 8 | 6 | 4 | 7 | 4 | 4 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | cross-on | on | cross-on | cross-on | on | cross-on | cross | cross-off | glassy | on | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | cross |
High Tide | 11:34AM4.49m | 11:55PM4.67m | 12:16PM4.19m | 00:38AM4.28m | 1:01PM3.87m | 1:27AM3.86m | 1:55PM3.58m | 2:30AM3.50m | 3:11PM3.38m | 4:01AM3.29m | 4:46PM3.36m | 5:33AM3.33m | 6:01PM3.56m | ||||||||
Low Tide | 6:22PM0.93m | 6:49AM1.04m | 6:53PM1.21m | 7:20AM1.37m | 7:28PM1.51m | 7:56AM1.69m | 8:14PM1.80m | 8:47AM1.96m | 9:28PM2.02m | 10:11AM2.12m | 11:21PM2.03m | 11:58AM2.06m | 00:52AM1.82m | ||||||||
 |  |  | | |  | |  |  |  | | | |  | | | |  | | | | |
 | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — |
 | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:27 | — | — | 8:24 | — |
mm | — | — | 2 | — | — | — | — | 3 | 5 | 1 | 3 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 18 | 17 | 18 | 18 | 16 | 17 | 17 | 17 | 17 | 14 | 15 | 15 | 13 | 16 | 16 | 14 | 15 | 16 | 15 |
Feels °C | 17 | 17 | 17 | 14 | 15 | 14 | 10 | 12 | 13 | 15 | 15 | 11 | 12 | 11 | 11 | 13 | 12 | 11 | 11 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | W 5 | WSW 5 | — | — | NW 4 | — | — | — | — | WSW 6 | WSW 6 | WSW 6 | SW 6 | W 6 | W 8 | W 15 | W 15 | W 15 | W 14 | NW 4 | NW 4 |
| kJ | 13 | 5 | — | — | 6 | — | — | — | — | 29 | 8 | 4 | 1 | 1 | 1 | 5 | 4 | 4 | 4 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 15 | W 14 | W 14 | W 14 | W 13 | W 13 | — | W 10 | W 10 | W 9 | W 14 | W 3 |
| kJ | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 | 3 | 3 | — | 2 | 2 | 2 | 4 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 9 | W 9 | W 9 | W 16 | — | — | — | — | W 9 | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | 5 | — | — | — | — | 2 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | SW 4 | W 6 | WSW 6 | W 4 | W 5 | WSW 6 | W 5 | NW 5 | NW 5 | NNW 4 | NW 4 | NW 4 | NNW 5 | NNW 4 | NW 4 | NW 3 | NW 4 | W 3 | — |
| kJ | — | — | 19 | 47 | 20 | 19 | 64 | 104 | 97 | 25 | 41 | 7 | 4 | 5 | 23 | 8 | 6 | 4 | 7 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 220 | 324 | 383 | 512 | 50 | 419 | 286 | 344 | 344 | 185 | 98 | 251 | 89 | 89 | 282 | 290 | 179 | 148 | 164 | 278 | 278 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Aberystwyth harbour trap Surf forecast
The above surf forecast table for Aberystwyth harbour trap provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aberystwyth harbour trap can be found by selecting the local surf guide option on the grey menu. Our Aberystwyth harbour trap 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 (Aberystwyth harbour trap) 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 Aberystwyth harbour trap 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.
Are you planning a holiday in Mid Wales? If you are looking for accommodation near Aberystwyth harbour trap, camping, hotels and holiday cottages in Mid Wales, consider staying in Aberystwyth which is 5 km (3 miles) away. Other places in and around Mid Wales where you can find information about places to rent, and car hire include Trawscoed which is 15 km (9 miles) away, Aberporth, Porthmadog and Builth Wells.
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