Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 0.5ft (0.1m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 0.5ft (0.1m), 11s period with S swell.
- Evening surf: Evening surf (18 Jul, local time) - 0.5ft (0.1m), 11s period with S swell.
The current surf forecast for Trearddur Bay (Holy Island) at 1PM is: 0.1m 11s primary swell from a South direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 06:00am July 18). An open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 0.5ft (0.1m) | 11s |
| Afternoon (18 Jul) | 0.5ft (0.1m) | 11s |
| Evening (18 Jul) | 0.5ft (0.1m) | 11s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 13°C on Sat morning). Wind will be generally light. | |||||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
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) | SW 13 | S 11 | SW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | SW 11 | S 11 | S 11 | S 11 | S 10 | NNW 4 | S 10 | N 4 | N 5 | N 5 | N 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 6 | 2 | 5 | 2 | 2 | 2 | 2 | 2 | 5 | 2 | 2 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:37AM5.79m | 2:08PM5.28m | 2:22AM5.60m | 2:52PM5.06m | 3:07AM5.33m | 3:38PM4.82m | |||||||||||||||||
Low Tide | 7:55AM0.51m | 8:05PM1.00m | 8:41AM0.77m | 8:50PM1.23m | 9:27AM1.09m | 9:37PM1.52m | |||||||||||||||||
 |  | | | | | | |  | | | | |  | | | |  | | | | | | |
 | 5:11 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — |
 | — | — | — | — | — | 9:35 | — | — | — | — | — | — | — | 9:34 | — | — | — | — | — | — | — | 9:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 13 | 15 | 16 | 16 | 16 | 15 | 14 | 14 | 15 | 16 | 16 | 16 | 15 | 13 | 13 | 13 | 13 | 15 | 16 | 16 |
Feels °C | 12 | 10 | 9 | 8 | 11 | 13 | 14 | 14 | 13 | 12 | 11 | 11 | 13 | 13 | 11 | 12 | 11 | 10 | 10 | 9 | 11 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | S 5 | S 5 | S 11 | SW 11 | S 11 | S 11 | S 11 | S 10 | — | S 10 | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 5 | 2 | 2 | 2 | 2 | — | 2 | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | SW 13 | S 11 | SW 11 | S 11 | S 11 | S 11 | S 11 | S 5 | S 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 2 | 5 | 2 | 2 | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 13 | — | — | — | — | — | S 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | N 4 | NNW 4 | NNW 5 | NNW 6 | N 6 | NNW 5 | N 5 | N 5 | N 4 | N 4 | NNW 4 | NNW 4 | NNW 4 | NNW 3 | N 4 | N 5 | N 5 | N 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 |
| kJ | 4 | 8 | 15 | 44 | 80 | 64 | 37 | 23 | 21 | 15 | 9 | 6 | 5 | 4 | 3 | 7 | 15 | 34 | 47 | 45 | 33 | 31 | 35 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 332 | 284 | 284 | 284 | 284 | 284 | 284 | 270 | 298 | 298 | 284 | 284 | 328 | 284 | 273 | 273 | 273 | 273 | 284 | 284 | 284 | 382 | 273 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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