
Surf Forecasts:
Aberystwyth harbour trap surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 20 Sep, 7AM (local time) - 2.5ft (0.8m), 7s period, WSW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 10PM (local time) - 6ft (1.9m), 7s period, WSW swell with 390 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 7AM (local time) - 2.5ft (0.8m), 7s period with WSW swell.
Best Forecast Surf Conditions for Aberystwyth harbour trap this week:
The surf forecast for Aberystwyth harbour trap over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 7AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 14s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Aberystwyth harbour trap in the next 16 days are 1.9m 7s and forecast to arrive on Friday (Sep 18) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 5s period and expected on Wednesday (Sep 16) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 20th Sep) | 2.5ft (0.8m) 7s |
| Best Surf | 7AM (Sun 20th Sep) | 2.5ft (0.8m) 7s |
| Most Powerful | 10PM (Fri 18th Sep) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Aberystwyth harbour trap over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's cookin' for Aberystwyth harbour trap over the next couple of weeks. Honestly, I gotta be straight with ya – it's a tough stretch ahead. There's nothing in the entire 16-day window that gets a thumbs up for a proper surf. The water temp is sittin' at 64° which is much warmer than what we'd normally see for this time of year, so that's a weird one.
We kick off Sunday the 13th with tiny, weak swell – 2ft from the WSW with a short period of 7 seconds and a combined energy of only 26 (weak). The wind's cross-on and we've got light rain, so it's just poor conditions all round. That sets the tone.
Monday the 14th stays small and messy, cross-onshore winds again, period droppin' to 4 seconds. Nothing doin'. Tuesday the 15th brings a bit more size – 3ft from the W – but the period's still short and the wind's onshore at 19 mph. The energy bumps to 76 (still weak), but it's rainin' and the quality is shot.
Wednesday the 16th and Thursday the 17th see onshore winds and swell around 4ft to 4ft with 6-second periods. Energy climbs to 109 on Wednesday morning (moderate), but it's still onshore and sloppy. Friday the 18th hits a peak of 6ft from WSW with 6 seconds, and energy jumps to 242 (moderate). But the wind is a strong cross-shore at 25 mph, makin' it a lumpy, cross-choppy mess – more of a kite-surf setup than paddle surf.
The weekend of the 19th and 20th stays poor – fresh cross-onshore winds and lumpy conditions, though Sunday morning the 20th does go clean for a moment with cross-offshore wind, but the swell's only 2ft. That's a tease, not a session.
From Monday the 21st through to the end of the period, it's mostly tiny or flat. The 22nd has a spike to 4ft from NNW with 6 seconds and 126 energy (moderate), but it's cross-on and choppy again. A few mornings around the 24th and 25th go glassy or offshore – like Thursday the 24th morning with glassy conditions and a light ENE breeze, or Friday the 25th with offshore ESE wind – but the swell's basically zero to 2ft with periods of 4 seconds or less. Clean but flat.
So, bottom line: there's no standout session here. Not one day scores higher than a zero out of ten. The harbour trap needs a proper SW groundswell with light offshore winds to fire, and we just ain't gettin' it this fortnight. The only positive is that when it's this consistently poor, it usually doesn't stay that way forever – forecasts can change. But for now, keep your board in the van and maybe take a walk along the prom.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon night. Warm (max 20°C on Mon afternoon, min 12°C on Tue night). Winds increasing (light winds from the S on Sun afternoon, fresh winds from the NW by Tue night). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Wed night. Very mild (max 17°C on Fri afternoon, min 12°C on Thu night). Winds increasing (light winds from the WSW on Wed afternoon, strong winds from the SW by Fri afternoon). | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 7 | WSW 7 | SW 7 | WSW 5 | WSW 4 | SW 6 | W 6 | W 5 | NW 5 | NW 6 | WNW 5 | WSW 5 | W 6 | W 5 | W 6 | W 6 | WSW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
Wave Graph | |||||||||||||||||||||
26 | 18 | 21 | 17 | 16 | 66 | 76 | 50 | 71 | 97 | 36 | 40 | 92 | 86 | 125 | 108 | 242 | 214 | 93 | 273 | 236 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross | on | on | cross-on | on | on | cross-on | on | cross-on | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:07PM5.29m | 10:25AM4.89m | 10:43PM5.03m | 11:00AM4.67m | 11:18PM4.67m | 11:35AM4.38m | 11:55PM4.26m | 12:12PM4.05m | 00:35AM3.83m | 12:56PM3.72m | 1:29AM3.44m | 2:02PM3.43m | 3:06AM3.17m | ||||||||
Low Tide | 4:49PM0.62m | 5:13AM0.62m | 5:19PM0.77m | 5:40AM0.87m | 5:47PM0.99m | 6:07AM1.16m | 6:17PM1.25m | 6:34AM1.46m | 6:51PM1.55m | 7:07AM1.77m | 7:37PM1.85m | 7:57AM2.06m | 8:51PM2.08m | ||||||||
6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | |
— | 7:37 | — | — | 7:35 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:24 | — | — | 7:22 | — | |
mm | 1 | — | — | — | — | 5 | 1 | 2 | 1 | 2 | — | 5 | 1 | — | 2 | — | 1 | 1 | — | — | — |
Temp °C | 17 | 17 | 18 | 18 | 20 | 19 | 15 | 15 | 15 | 13 | 14 | 15 | 15 | 15 | 14 | 15 | 17 | 16 | 15 | 16 | 15 |
Feels °C | 18 | 17 | 18 | 18 | 17 | 17 | 10 | 10 | 11 | 8 | 10 | 11 | 11 | 11 | 9 | 8 | 11 | 10 | 8 | 9 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | W 9 | W 8 | — | — | — | — | WSW 6 | WSW 6 | WSW 8 | NNW 5 | — | — | — | — | — | — | NW 5 | — | — |
26 | 18 | 2 | 1 | — | — | — | — | 14 | 4 | 7 | 2 | — | — | — | — | — | — | 12 | — | — | |
Swell 2 Height (m) Direction Period (s) | — | W 9 | — | — | — | — | — | — | WSW 8 | WSW 9 | — | — | — | — | — | — | — | — | — | — | — |
— | 2 | — | — | — | — | — | — | 6 | 8 | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | SW 7 | WSW 5 | WSW 4 | SW 6 | W 6 | W 5 | NW 5 | NW 6 | WNW 5 | WSW 5 | W 6 | W 5 | W 6 | W 6 | WSW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
— | — | 21 | 17 | 16 | 66 | 76 | 50 | 71 | 97 | 36 | 40 | 92 | 86 | 125 | 108 | 242 | 214 | 93 | 273 | 236 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 208 | 222 | 222 | 222 | 222 | 222 | 459 | 531 | 251 | 251 | 50 | 313 | 333 | 317 | 98 | 466 | 740 | 740 | 799 | 278 | 236 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











