Surf Forecasts:
How big are the waves at Crab Island today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 2.5ft (0.8m), 6s period with WSW swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 3.5ft (1.1m), 5s period with W swell.
- Evening surf: Evening surf (19 Aug, local time) - 4.5ft (1.4m), 6s period with WSW swell.
The current surf forecast for Crab Island at 4AM is: 1.0m 6s primary swell from a West direction and 0.1m 17s secondary swell from a Southwest direction, 0.1m 17s secondary swell from a Southwest direction (forecast issued at 12:00am August 19). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 2.5ft (0.8m) | 6s |
| Afternoon (19 Aug) | 3.5ft (1.1m) | 5s |
| Evening (19 Aug) | 4.5ft (1.4m) | 6s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Very mild (max 18°C on Tue night, min 12°C on Thu night). Winds decreasing (fresh winds from the W on Wed afternoon, calm by Fri morning). | ||||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 6 | WSW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 9 | W 9 | WSW 9 | WSW 9 | W 9 | WSW 8 | W 8 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 82 | 78 | 64 | 46 | 42 | 75 | 91 | 135 | 225 | 266 | 234 | 234 | 238 | 233 | 263 | 194 | 106 | 80 | 74 | 54 | 48 | 13 | 22 | 22 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | glassy | cross | cross-off | cross-off | off |
High Tide | 10:55PM8.48m | 11:12AM8.06m | 11:28PM7.89m | 11:51AM7.51m | 00:13AM7.29m | 12:49PM7.00m | ||||||||||||||||||
Low Tide | 4:54AM2.27m | 5:08PM2.48m | 5:28AM2.83m | 5:52PM3.08m | 6:17AM3.42m | 7:01PM3.61m | ||||||||||||||||||
 |  |  | |  | | |  | | | | | | | |  | | |  | | |  | | | |
 | — | 6:05 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:29 | — | — | — | — | — | — | — | 8:27 | — |
mm | 1 | — | — | — | 1 | — | — | 1 | 1 | 1 | 1 | 1 | — | 1 | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 16 | 16 | 15 | 16 | 17 | 17 | 17 | 16 | 16 | 15 | 14 | 15 | 17 | 18 | 18 | 15 | 13 | 12 | 12 | 15 | 16 | 16 | 17 | 14 |
Feels °C | 14 | 15 | 14 | 15 | 13 | 11 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 10 | 9 | 10 | 14 | 13 | 12 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 17 | WSW 6 | WSW 6 | SW 16 | W 16 | SW 16 | SW 16 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | SW 14 | SW 14 | W 9 | W 9 | WSW 9 | WSW 9 | W 9 | WSW 8 | W 8 | WSW 8 | WSW 8 | WSW 8 |
| kJ | 12 | 12 | 64 | 46 | 10 | 5 | 10 | 10 | 225 | 266 | 234 | 234 | 8 | 8 | 263 | 194 | 106 | 80 | 74 | 54 | 48 | 13 | 22 | 22 |
Swell 2 Height (m) Direction Period (s) | W 17 | SW 17 | SW 17 | SW 16 | W 16 | — | W 16 | W 9 | SW 16 | SW 15 | SW 15 | SW 15 | W 15 | — | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | — | SW 13 | WSW 6 | SW 13 | SW 13 |
| kJ | 6 | 12 | 11 | 11 | 5 | — | 5 | 7 | 10 | 9 | 9 | 8 | 4 | — | 8 | 8 | 8 | 8 | 7 | — | 7 | 7 | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 16 | — | — | — | SW 16 | — | — | — | W 15 | — | — | — | — | SW 14 | SW 14 | W 14 | SW 13 | SW 16 | SW 13 | SW 16 | SW 16 |
| kJ | — | — | — | 5 | — | — | — | 10 | — | — | — | 4 | — | — | — | — | 8 | 8 | 4 | 7 | 10 | 7 | 10 | 10 |
Wind waves Height (m) Direction Period (s) | WSW 6 | W 6 | — | — | WSW 6 | WSW 5 | WSW 6 | WSW 6 | — | — | — | W 7 | WSW 8 | W 8 | — | — | NNW 4 | NNW 4 | — | — | NW 4 | NW 2 | WNW 3 | NW 4 |
| kJ | 82 | 78 | — | — | 42 | 75 | 91 | 135 | — | — | — | 150 | 238 | 233 | — | — | 3 | 1 | — | — | 2 | 1 | 4 | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 20 | 0 | 0 | 262 | 361 | 438 | 440 | 283 | 50 | 144 | 0 | 49 | 233 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 19 | 21 | 139 | 190 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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