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Surf Forecasts:
Aberystwyth harbour trap surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 am Wednesday 20 May 2026 BSTForecast update in hr min s Forecast update imminent
Aberystwyth harbour trap surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aberystwyth harbour trap sea temperature is
12.4° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Aberystwyth harbour trap today?
The current surf forecast for Aberystwyth harbour trap at 10AM is: 1.7m 6s primary swell from a West-southwest direction (forecast issued at 06:00am May 20). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 5.5ft (1.7m) | 6s |
| Afternoon (20 May) | 4.5ft (1.4m) | 6s |
| Evening (20 May) | 1.5ft (0.5m) | 9s |
Table - waves today at Aberystwyth harbour trap. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Wed morning. Very mild (max 19°C on Thu afternoon, min 11°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, calm by Fri night). | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 9 | WSW 10 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 9 | WSW 9 | SW 9 | WSW 5 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | |
484 | 425 | 163 | 156 | 126 | 71 | 48 | 32 | 20 | 15 | 42 | 47 | 40 | 26 | 52 | 49 | 51 | 59 | 61 | 71 | 97 | 63 | 59 | 39 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | off | off | off | cross | cross | on | glassy | glassy | off | |
High Tide | 11:03AM4.71m | 11:25PM4.84m | 11:56AM4.34m | 00:21AM4.54m | 12:59PM3.98m | |||||||||||||||||||
Low Tide | 5:55AM0.68m | 6:12PM0.99m | 6:46AM0.86m | 7:01PM1.23m | 7:41AM1.08m | 7:57PM1.48m | ||||||||||||||||||
 |  |  |  |  | |  |  |  |  | | | | | | | | | | | | | | | |
 | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | 5:09 |
 | — | — | — | — | — | 9:12 | — | — | — | — | — | — | — | 9:13 | — | — | — | — | — | — | — | 9:15 | — | 9:15 |
1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 12 | 12 | 13 | 14 | 14 | 12 | 11 | 13 | 14 | 15 | 16 | 18 | 19 | 16 | 16 | 14 | 15 | 18 | 19 | 17 | 16 | 15 | 15 |
5 | 6 | 5 | 6 | 8 | 11 | 10 | 8 | 9 | 11 | 12 | 12 | 15 | 18 | 14 | 13 | 11 | 13 | 16 | 17 | 17 | 17 | 16 | 15 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 9 | WSW 5 | WSW 5 | WSW 5 | WSW 7 | WSW 7 | — | WSW 8 | WSW 9 | WSW 9 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
 kJ | — | — | — | — | — | — | 48 | 19 | 12 | 15 | 42 | 47 | — | 26 | 52 | 49 | 51 | 59 | 61 | 71 | 97 | 63 | 59 | 39 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 9 | SW 9 | W 11 | — | — | — | SW 4 | — | — | — | — | — | — | — | SW 4 | WSW 4 | WSW 4 |
| kJ | — | — | — | — | — | — | — | 32 | 20 | 10 | — | — | — | 4 | — | — | — | — | — | — | — | 3 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 12 | WSW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 13 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 9 | WSW 10 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 5 | S 3 | S 3 | S 3 | S 3 | S 3 | WSW 8 | — | — | — | SSE 2 | — | — | — | — | — | — | — |
| kJ | 484 | 425 | 163 | 156 | 126 | 71 | 34 | 1 | 2 | 3 | 1 | 1 | 40 | — | — | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 336 | 333 | 236 | 398 | 222 | 222 | 0 | 20 | 20 | 109 | 109 | 95 | 97 | 96 | 95 | 30 | 95 | 14 | 95 | 43 | 101 | 14 | 14 | 43 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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