Surf Forecasts:
How big are the waves at Crab Island today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 0.5ft (0.2m), 8s period with W swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 0.5ft (0.1m), 8s period with W swell.
- Evening surf: Evening surf (18 Jul, local time) - 1ft (0.3m), 4s period with WNW swell.
The current surf forecast for Crab Island at 1AM is: 0.1m 13s primary swell from a Southwest direction and 0.2m 8s secondary swell from a West direction, 0.1m 6s secondary swell from a Southwest direction (forecast issued at 06:00pm July 17). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 0.5ft (0.2m) | 8s |
| Afternoon (18 Jul) | 0.5ft (0.1m) | 8s |
| Evening (18 Jul) | 1ft (0.3m) | 4s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 25°C on Fri afternoon, min 14°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | |||||||||||||||||
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) | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 4 | NW 4 | E 3 | E 3 | W 7 | W 7 | W 7 | W 19 | W 19 |
Wave Graph  | |||||||||||||||||||
 kJ | 7 | 7 | 7 | 7 | 5 | 5 | 5 | 1 | 1 | 1 | 3 | 2 | 5 | 3 | 1 | 1 | 1 | 7 | 7 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | cross-off | on | cross-on | cross-off | off | cross-off | cross-off | cross | cross | cross-on | on | cross | off | cross-off |
High Tide | 9:40PM9.63m | 10:05AM9.21m | 10:22PM9.35m | 10:45AM8.86m | |||||||||||||||
Low Tide | 3:24PM1.08m | 3:55AM1.08m | 4:05PM1.29m | 4:34AM1.38m | 4:43PM1.62m | ||||||||||||||
 |  |  | | | | | | | | |  | |  | | | | | | |
 | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | 9:24 | — | — | — | — | — | — | — | 9:23 | — | — | — | — | — | — | — | 9:22 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 23 | 19 | 18 | 17 | 16 | 17 | 19 | 23 | 20 | 21 | 18 | 15 | 14 | 16 | 19 | 19 | 21 | 18 |
Feels °C | 22 | 19 | 15 | 14 | 15 | 15 | 16 | 17 | 20 | 16 | 18 | 13 | 10 | 11 | 14 | 16 | 14 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | WNW 3 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 4 | NW 4 | W 8 | W 8 | W 7 | — | W 7 | W 7 | W 7 |
| kJ | 5 | 5 | 5 | 5 | 1 | 5 | 5 | 1 | 1 | 1 | 3 | 2 | 1 | 1 | 1 | — | 1 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | W 8 | — | — | — | S 5 | — | W 8 | W 8 | NW 4 | W 8 | NW 4 | W 7 | — | W 19 | W 10 |
| kJ | 1 | 1 | 1 | 1 | 5 | — | — | — | 1 | — | 1 | 1 | 1 | 1 | 1 | 1 | — | 7 | 2 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 6 | SW 6 | SW 6 | SW 5 | — | — | — | — | — | — | — | NW 4 | — | W 10 | W 19 |
| kJ | 7 | 7 | 7 | 7 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | 1 | — | 2 | 7 |
Wind waves Height (m) Direction Period (s) | — | NW 3 | NW 3 | NW 3 | — | — | — | — | NW 2 | NW 4 | N 4 | ENE 3 | E 3 | E 3 | ESE 2 | — | — | NW 2 | NW 3 |
| kJ | — | 3 | 4 | 2 | — | — | — | — | 1 | 8 | 5 | 3 | 5 | 3 | 1 | — | — | 1 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 773 | 402 | 395 | 402 | 402 | 420 | 420 | 420 | 420 | 420 | 72 | 86 | 135 | 376 | 202 | 190 | 190 | 374 | |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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