Surf Forecasts:
Aberystwyth harbour trap surf forecast from 14 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 7AM (local time) - 4.5ft (1.4m), 5s period, W swell with 110 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 1.4m 5s and forecast to arrive on Wednesday (Aug 19) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Sunday (Aug 16) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Wed 19th Aug) | 4.5ft (1.4m) 5s |
Table - best surf conditions forecast for Aberystwyth harbour trap over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on the menu for Aberystwyth harbour trap over the next couple of weeks. I’ll be straight with you, mate – it’s a tough stretch. We’re looking at a proper dry spell to kick things off, and it’s not until the very end of this forecast window that we might finally get something to paddle into.
For the first twelve days, from Friday the 14th of August right through to the evening of Tuesday the 25th, it’s essentially flat or blown out. The water temp is sitting at 68°, which is a whopping 7° warmer than normal for this time of year – that’s seriously unusual, like bathing in a bath, but there’s no surf to enjoy it in. We see a few tiny pulses, like a 0.3ft glassy wave on the morning of Sunday the 16th, but that’s with a period of 7 seconds and combined energy of just 1 (weak) – it’s barely a ripple. The wind is all over the shop, mostly cross-on or onshore, and even when it’s clean, there’s simply no size. This is a blank run that’s fairly normal for this area when the setups aren’t lining up. The only real highlight is that from Wednesday the 26th onwards, the wind starts to shift, with clean cross-off conditions showing up on the 27th, but still, the swell is tiny.
Then, things change. On the morning of Friday the 28th of August, we’ve got a proper pulse. A 10ft west-south-west swell, with a period of 10 seconds, slams in. The combined wave energy is 1593 (strong), so there’s a lot of power behind it. The wind is a clean cross-off from the east-north-east, which is perfect for this spot – offshore or cross-off is what you want for that reef setup, and it’ll keep the faces clean. However, this is a big swell – over 8ft – so it’s strictly for the experts only. Beginners need to stay well away. The quality is still labelled as marginal, so don’t expect perfection, but it’s the only real swell in the entire outlook. Crowds are sometimes a factor here, so on a Friday with a solid swell, expect company.
The next morning, Saturday the 29th, it’s still decent. An 8ft westerly swell with an 8-second period, combined energy of 825 (moderate to strong). The wind is light and cross from the north, so it’ll be a bit bumpy but still rideable. Again, that’s expert territory at 8ft. The afternoon sees the wind swinging to a fresh north-westerly cross-on, which will chop it up and trash the quality, so make the most of the morning.
So, the standout window is the morning of Friday the 28th of August. That’s the one to circle on the calendar. It’s a long-range call so treat it with a bit of caution, but the signs are there. The morning of the 29th is a solid backup, but you need to be on it early before the wind gets messy. For now, it’s time to wax the board for that Friday session.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri morning, min 13°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Mon night. Very mild (max 18°C on Mon afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Tue night, calm by Wed night). | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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) | WSW 4 | WSW 4 | WSW 8 | WSW 7 | NW 4 | NW 4 | W 7 | W 7 | W 7 | WSW 4 | WSW 5 | WSW 6 | W 4 | W 4 | W 4 | WNW 6 | WNW 5 | NW 4 | NW 4 | NW 4 | W 14 |
Wave Graph | |||||||||||||||||||||
6 | 4 | 6 | 5 | 27 | 3 | 1 | 1 | 1 | 1 | 4 | 84 | 32 | 23 | 40 | 106 | 50 | 9 | 16 | 17 | 4 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross | cross-on | cross-on | cross-off | glassy | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | on | cross-off |
High Tide | 9:54PM5.37m | 10:15AM4.90m | 10:34PM5.26m | 10:55AM4.74m | 11:14PM5.02m | 11:34AM4.49m | 11:55PM4.67m | 12:16PM4.19m | 00:38AM4.28m | 1:01PM3.87m | 1:27AM3.86m | 1:55PM3.58m | 2:30AM3.50m | ||||||||
Low Tide | 4:42PM0.51m | 5:10AM0.31m | 5:18PM0.55m | 5:45AM0.47m | 5:51PM0.70m | 6:18AM0.72m | 6:22PM0.93m | 6:49AM1.04m | 6:53PM1.21m | 7:20AM1.37m | 7:28PM1.51m | 7:56AM1.69m | 8:14PM1.80m | ||||||||
5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — | |
— | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 4 | 1 | — | — | — | — | — |
Temp °C | 20 | 19 | 17 | 17 | 16 | 15 | 17 | 17 | 16 | 17 | 18 | 18 | 17 | 18 | 17 | 15 | 17 | 15 | 16 | 16 | 13 |
Feels °C | 21 | 18 | 16 | 13 | 11 | 14 | 16 | 16 | 15 | 17 | 16 | 15 | 13 | 13 | 14 | 10 | 13 | 13 | 13 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 4 | WSW 4 | WSW 8 | WSW 7 | WSW 7 | SW 7 | — | — | — | WSW 4 | — | — | — | — | — | — | — | WSW 6 | WSW 5 | — | W 14 |
6 | 4 | 6 | 5 | 5 | 2 | — | — | — | 1 | — | — | — | — | — | — | — | 6 | 3 | — | 4 | |
Swell 2 Height (m) Direction Period (s) | W 9 | SW 8 | — | — | — | — | W 7 | W 7 | — | W 7 | — | — | — | — | — | — | — | W 16 | W 15 | W 14 | — |
2 | 3 | — | — | — | — | 1 | 1 | — | 1 | — | — | — | — | — | — | — | 5 | 4 | 4 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 7 | — | — | — | — | — | — | — | — | — | — | — | W 9 |
— | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | NNW 4 | NNW 3 | NW 4 | NW 4 | — | — | — | — | WSW 5 | WSW 6 | W 4 | W 4 | W 4 | WNW 6 | WNW 5 | NW 4 | NW 4 | NW 4 | NW 3 |
— | — | 4 | 5 | 27 | 3 | — | — | — | — | 4 | 84 | 32 | 23 | 40 | 106 | 50 | 9 | 16 | 17 | 3 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 100 | 222 | 278 | 398 | 512 | 109 | 344 | 367 | 220 | 358 | 388 | 412 | 111 | 397 | 324 | 278 | 101 | 100 | 98 | 220 | 96 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.











