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Surf Forecasts:
Aberystwyth harbour trap surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 am Thursday 21 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
12.5° C
(Which is 1.4°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 2PM is: 0.8m 8s primary swell from a West-southwest direction (forecast issued at 06:00am May 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 3ft (0.9m) | 7s |
| Afternoon (21 May) | 2.5ft (0.7m) | 8s |
| Evening (21 May) | 1.5ft (0.5m) | 8s |
Table - waves today at Aberystwyth harbour trap. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Fri morning, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | SW 7 | SW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | |
68 | 75 | 77 | 72 | 54 | 56 | 43 | 46 | 50 | 61 | 65 | 97 | 99 | 64 | 60 | 39 | 38 | 56 | 38 | 38 | 31 | 29 | 17 | 16 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross | cross | cross | cross-off | cross-off | off | off | off | cross | cross | cross-on | glassy | cross | cross-off | cross | glassy | cross-on | on | on | glassy | glassy | glassy | |
High Tide | 11:56AM4.34m | 00:21AM4.54m | 12:59PM3.98m | 1:27AM4.25m | 2:14PM3.73m | |||||||||||||||||||
Low Tide | 6:46AM0.86m | 7:01PM1.23m | 7:41AM1.08m | 7:57PM1.48m | 8:45AM1.28m | 9:02PM1.66m | ||||||||||||||||||
 |  |  | | | |  | | | | |  | | | |  | | |  | | | | | | |
 | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | 5:07 |
 | — | — | — | — | — | 9:13 | — | — | — | — | — | — | — | 9:15 | — | — | — | — | — | — | — | 9:15 | — | 9:17 |
1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 13 | 15 | 17 | 17 | 18 | 16 | 15 | 14 | 15 | 18 | 19 | 19 | 17 | 15 | 14 | 13 | 13 | 15 | 16 | 16 | 15 | 14 | 14 |
8 | 10 | 12 | 15 | 15 | 18 | 15 | 12 | 12 | 14 | 16 | 17 | 18 | 18 | 15 | 13 | 12 | 13 | 14 | 15 | 15 | 15 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | WSW 9 | W 11 | — | — | — | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 |
 kJ | 68 | 10 | — | — | — | 56 | 43 | 46 | 50 | 61 | 65 | 97 | 99 | 64 | 60 | 39 | 38 | 56 | 38 | 38 | 31 | 29 | 17 | 16 |
Swell 2 Height (m) Direction Period (s) | WSW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 4 | WSW 4 | WSW 4 | — | — | — | — | — | — | — |
| kJ | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | 3 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 3 | SW 7 | SW 7 | WSW 8 | WSW 8 | — | — | — | — | — | — | — | — | SW 4 | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 75 | 77 | 72 | 54 | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 164 | 164 | 138 | 95 | 97 | 14 | 97 | 43 | 95 | 14 | 95 | 50 | 101 | 0 | 43 | 43 | 43 | 43 | 89 | 50 | 50 | 98 | 89 | 89 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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