Surf Forecasts:
How big are the waves at Crab Island today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 3.5ft (1.1m), 7s period with W swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3ft (0.9m), 7s period with WSW swell.
- Evening surf: Evening surf (20 Sep, local time) - 2.5ft (0.7m), 7s period with WSW swell.
The current surf forecast for Crab Island at 2PM is: 0.9m 7s primary swell from a West-southwest direction and 0.1m 14s secondary swell from a West direction (forecast issued at 06:00am September 20). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 3.5ft (1.1m) | 7s |
| Afternoon (20 Sep) | 3ft (0.9m) | 7s |
| Evening (20 Sep) | 2.5ft (0.7m) | 7s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 14°C on Sun morning). Wind will be generally light. | |||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||
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 7 | W 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 9 | W 12 | W 12 | W 11 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 161 | 110 | 110 | 77 | 65 | 67 | 54 | 52 | 38 | 37 | 27 | 24 | 24 | 15 | 16 | 16 | 17 | 18 | 18 | 40 | 67 | 98 | 125 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | glassy | glassy | glassy | glassy | cross-on | cross | cross | cross-off | cross-off | cross-off | off | glassy | cross-on | cross | cross-off | glassy |
High Tide | 1:30PM6.60m | 2:17AM6.46m | 3:12PM6.83m | 3:50AM6.89m | 4:24PM7.46m | ||||||||||||||||||
Low Tide | 6:38AM4.13m | 7:56PM4.09m | 8:47AM4.13m | 9:31PM3.73m | 10:08AM3.56m | ||||||||||||||||||
 |  | |  |  | | | |  | | | | | | | | | | | | | | | |
 | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — |
 | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:17 | — | — | — | — | — | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 16 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 19 | 20 | 19 | 19 |
Feels °C | 12 | 12 | 11 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 15 | 17 | 18 | 17 | 17 | 17 | 18 | 18 | 19 | 20 | 18 | 20 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | W 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 9 | W 12 | W 12 | W 11 |
| kJ | 33 | 110 | 110 | 77 | 65 | 67 | 54 | 52 | 38 | 37 | 27 | 24 | 24 | 15 | 16 | 16 | 17 | 18 | 18 | 40 | 67 | 98 | 125 |
Swell 2 Height (m) Direction Period (s) | SW 14 | W 10 | SW 14 | W 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 20 | W 19 | WSW 18 |
| kJ | 8 | 46 | 8 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 7 | 60 |
Swell 3 Height (m) Direction Period (s) | — | SW 14 | SW 14 | W 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 7 | 8 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 161 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 49 | 0 | 0 | 0 | 20 | 20 | 25 | 15 | 15 | 15 | 51 | 115 | 178 | 86 | 127 | 127 | 73 | 86 | 59 | 72 | 20 | 0 | 0 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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