Surf Forecasts:
How big are the waves at Threes today (13 Aug):
- Afternoon surf: Afternoon surf (13 Aug, local time) - 6.5ft (2.0m), 10s period with WNW swell.
- Evening surf: Evening surf (13 Aug, local time) - 6ft (1.8m), 10s period with WNW swell.
The current surf forecast for Threes at 8PM is: 1.9m 10s primary swell from a West-northwest direction (forecast issued at 03:00pm August 13). An open ocean swell of 0.6m 11s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | - | - |
| Afternoon (13 Aug) | 6.5ft (2.0m) | 10s |
| Evening (13 Aug) | 6ft (1.8m) | 10s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 44mm), heaviest during Sat night. Warm (max 29°C on Thu afternoon, min 25°C on Sat night). Winds increasing (light winds from the W on Sat night, fresh winds from the WSW by Sun morning). | ||||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | ||||||||||||||||||
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) | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | WNW 9 | WNW 9 | W 10 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 853 | 734 | 684 | 591 | 540 | 451 | 440 | 430 | 430 | 495 | 550 | 479 | 495 | 473 | 517 | 452 | 505 | 599 | 683 | 565 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:07PM0.76m | 7:53AM0.74m | 9:37PM0.75m | 8:49AM0.72m | ||||||||||||||||
Low Tide | 2:04PM-0.15m | 2:32AM0.37m | 2:46PM-0.09m | 3:16AM0.30m | 3:25PM0.00m | |||||||||||||||
 | |  |  | | | |  | | | | |  | | | |  | |  |  | |
 | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | 6:44 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 6 | 16 |
Temp °C | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 26 |
Feels °C | 31 | 30 | 29 | 31 | 30 | 30 | 30 | 29 | 30 | 30 | 31 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | W 9 | W 9 | SE 11 | SE 10 | W 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | W 9 |
| kJ | 853 | 734 | 684 | 591 | 540 | 451 | 440 | 430 | 55 | 54 | 550 | 54 | 53 | 52 | 51 | 51 | 36 | 36 | 26 | 565 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | N 12 | N 12 | SE 10 | N 11 | N 11 | N 10 | N 10 | NE 11 | NE 11 | NE 11 | NE 10 | SE 10 |
| kJ | 65 | 67 | 90 | 92 | 92 | 72 | 72 | 71 | 11 | 25 | 54 | 21 | 20 | 19 | 17 | 18 | 18 | 18 | 15 | 25 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 11 | ENE 11 | E 11 | E 10 | E 10 | E 10 | NNE 11 | N 11 | E 10 | ENE 10 | NE 12 | NE 12 | N 10 | N 10 | N 10 | N 9 | NE 10 |
| kJ | 6 | 6 | 6 | 9 | 11 | 9 | 8 | 7 | 7 | 12 | 22 | 8 | 9 | 22 | 21 | 8 | 8 | 7 | 2 | 16 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 9 | W 9 | — | W 10 | W 9 | W 9 | W 9 | W 9 | WNW 9 | WNW 9 | W 10 | — |
| kJ | — | — | — | — | — | — | — | — | 430 | 495 | — | 479 | 495 | 473 | 517 | 452 | 505 | 599 | 683 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 15 | 15 | 15 | 15 | 1833 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 255 | 15 | 15 | 15 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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