Surf Forecasts:
Aberystwyth harbour trap surf forecast from 20 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 4PM (local time) - 3.5ft (1.1m), 5s period, NW swell with 57 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 1.1m 5s and forecast to arrive on Thursday (Aug 20) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 20th Aug) | 3.5ft (1.1m) 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 cards for Aberystwyth harbour trap. Straight up, I’ll be honest with you, it’s a grim picture for the next couple of weeks. We’ve got a long stretch of nothing worthwhile, so don’t go getting your hopes up.
The first proper chance of anything even rideable is a long way off, on the morning of the 30th of August. The swell is a tiny 4ft from the WSW, but the period is a short, weak 6 seconds. The combined energy is still only weak (88). It’s a “surfable” wave, but it’s very ordinary. The wind is a cross-off from the SSE, so it’ll be clean, which is a small mercy. But honestly, it’s not going to get the heart pumping.
The next day, the 31st of August, the swell bumps up to 7ft from the WSW, with a combined energy climbing to moderate (360). The period is still short at 7 seconds though. The wind is a cross-off from the S in the morning, keeping it clean. That’s a fair bit of size, getting into the territory where it’s only for the experienced crew. The afternoon gets a bit messy with a cross-shore wind.
Then on the 1st of September, we get a morning of glassy conditions with a 3ft swell from the west, but the period is just 5 seconds and the energy is weak (58). It’s a clean, small wave, but with no punch.
The rest of the forecast is a write-off. There’s a gap of about 10 days from the start of the forecast with zero recommendations. We’ve got a few days of onshore winds, cross-shore chop, and tiny swells that would barely push a floaty. The 25th of August has a strong offshore wind, but the swell is a pathetic 0.3ft, so you’d just be fighting the wind for nothing.
So, if you’re desperate, the morning of the 31st of August is the best of a bad bunch. It’s got size, it’s clean, and the energy is there. But it’s a short period swell, which can be a bit fat and unruly, and it’s a reef break, so it might get a bit heavy. The 1st of September is glassy but tiny. Don’t hold your breath for anything else.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Thu morning. Very mild (max 17°C on Thu afternoon, min 11°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue afternoon. Warm (max 25°C on Mon afternoon, min 12°C on Sat night). Winds increasing (calm on Sun morning, strong winds from the E by Mon night). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 6 | NW 5 | NNW 5 | NW 5 | NW 4 | NNW 4 | NW 4 | NW 4 | W 15 | W 14 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 9 | SW 4 | SW 5 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 17 | 57 | 19 | 25 | 16 | 10 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 16 | 51 | 50 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | glassy | cross-on | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 1:55PM3.58m | 2:30AM3.50m | 3:11PM3.38m | 4:01AM3.29m | 4:46PM3.36m | 5:33AM3.33m | 6:01PM3.56m | 6:35AM3.54m | 6:53PM3.86m | 7:18AM3.82m | 7:32PM4.18m | 7:52AM4.10m | 8:04PM4.49m | ||||||||
Low Tide | 7:56AM1.69m | 8:14PM1.80m | 8:47AM1.96m | 9:28PM2.02m | 10:11AM2.12m | 11:21PM2.03m | 11:58AM2.06m | 00:52AM1.82m | 1:10PM1.83m | 1:46AM1.53m | 1:58PM1.55m | 2:27AM1.25m | 2:37PM1.27m | 3:04AM1.00m | |||||||
 | |  | | |  |  | |  | | | | | | |  |  | |  | |  | |
 | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:16 | — | — |
 | — | 8:31 | — | — | 8:30 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — |
mm | 4 | 3 | — | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | 9 |
Temp °C | 16 | 17 | 14 | 15 | 15 | 14 | 15 | 15 | 14 | 17 | 17 | 16 | 23 | 25 | 20 | 22 | 19 | 17 | 22 | 23 | 19 |
Feels °C | 12 | 13 | 11 | 12 | 12 | 13 | 12 | 12 | 13 | 15 | 15 | 14 | 19 | 21 | 14 | 16 | 16 | 16 | 19 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | WSW 6 | WSW 6 | NW 5 | SW 6 | W 6 | W 15 | W 15 | NNW 4 | — | W 14 | — | SW 9 | W 9 | W 9 | W 13 | W 13 | W 9 | SW 8 | — | WSW 7 |
| kJ | 17 | 16 | 4 | 25 | 2 | 1 | 5 | 4 | 2 | — | 4 | — | 3 | 2 | 1 | 3 | 3 | 2 | 3 | — | 50 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 14 | W 9 | WSW 7 | W 8 | W 13 | W 6 | W 10 | W 15 | W 14 | — | SW 10 | W 14 | W 14 | W 13 | W 8 | W 8 | — | — | — | — |
| kJ | 4 | 4 | 2 | 5 | 1 | 3 | 1 | 2 | 4 | 4 | — | 4 | 4 | 4 | 3 | 1 | 1 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 14 | W 14 | W 13 | — | — | — | W 9 | W 9 | — | W 14 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | 4 | 3 | — | — | — | 2 | 2 | — | 4 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 5 | NNW 5 | — | NW 4 | NNW 4 | NW 4 | NW 4 | — | — | — | — | ESE 3 | E 2 | ESE 3 | E 3 | ENE 3 | ESE 3 | SW 4 | SW 5 | — |
| kJ | 17 | 57 | 19 | — | 16 | 10 | 5 | 3 | — | — | — | — | 1 | 1 | 8 | 5 | 8 | 1 | 16 | 51 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 334 | 419 | 97 | 100 | 324 | 96 | 89 | 217 | 96 | 112 | 277 | 99 | 344 | 99 | 358 | 349 | 251 | 225 | 309 | 267 | 89 |
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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