Surf Forecasts:
How big are the waves at Threes today (18 Oct):
- Morning surf: Morning surf (18 Oct, local time) - 6ft (1.8m), 9s period with N swell.
- Evening surf: Evening surf (18 Oct, local time) - 0.5ft (0.2m), 8s period with N swell.
The current surf forecast for Threes at 6AM is: 1.8m 9s primary swell from a Northeast direction and 1.8m 9s secondary swell from a North direction (forecast issued at 09:00pm October 17). An open ocean swell of 6.0m 12s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | 6ft (1.8m) | 9s |
| Afternoon (18 Oct) | - | - |
| Evening (18 Oct) | 0.5ft (0.2m) | 8s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 145mm), heaviest during Sun morning. Warm (max 28°C on Sat night, min 25°C on Sun night). Winds decreasing (extremely windy from the N on Sat night, moderate winds from the SE by Tue afternoon). | ||||||||||||||||||
Sat 17 | Sunday 18 | Monday 19 | ||||||||||||||||
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) | N 7 | N 7 | N 8 | ENE 14 | NE 9 | NNW 12 | S 11 | S 11 | S 10 | N 8 | N 8 | N 11 | NNE 11 | SW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 380 | 810 | 1849 | 0 | 586 | 13 | 0 | 0 | 0 | 5 | 1 | 9 | 11 | 1049 | 855 | 692 | 622 | 533 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | 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 | 10:25PM0.59m | 2:36PM0.63m | 11:25PM0.56m | 3:32PM0.65m | ||||||||||||||
Low Tide | 6:20PM0.52m | 6:27AM0.07m | 7:49PM0.52m | 7:29AM0.09m | 9:11PM0.48m | |||||||||||||
 | | | |  | | | | |  |  | | | | | | | | |
 | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
mm | 2 | 2 | 1 | 24 | 7 | 50 | 18 | 3 | 3 | 7 | 2 | 2 | 3 | 3 | 2 | 3 | 3 | 2 |
Temp °C | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 25 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 25 | 24 | 20 | 11 | 20 | 12 | 16 | 17 | 19 | 20 | 20 | 19 | 23 | 23 | 24 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 13 | ENE 14 | ENE 13 | NE 9 | ENE 9 | NE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
| kJ | 3331 | 6566 | 15284 | 11393 | 586 | 339 | 112 | 122 | 113 | 113 | 110 | 110 | 96 | 1049 | 855 | 692 | 622 | 533 |
Swell 2 Height (m) Direction Period (s) | SE 9 | — | — | — | N 9 | NNW 12 | — | — | — | N 8 | N 8 | N 11 | NNE 11 | ENE 9 | ENE 9 | ENE 9 | W 11 | W 11 |
| kJ | 14 | — | — | — | 476 | 13 | — | — | — | 5 | 1 | 9 | 11 | 73 | 73 | 71 | 155 | 146 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | WNW 8 | — | — | — | — | — | — | N 11 | NNE 11 | NNE 10 | W 11 | W 11 | NE 9 | ENE 9 |
| kJ | — | — | — | — | 88 | — | — | — | — | — | — | 9 | 11 | 10 | 38 | 38 | 81 | 101 |
Wind waves Height (m) Direction Period (s) | N 7 | N 7 | N 8 | ENE 14 | ESE 12 | SSE 11 | S 11 | S 11 | S 10 | SSW 10 | SSW 10 | SSW 10 | S 9 | SSE 8 | S 8 | S 9 | S 8 | S 8 |
| kJ | 380 | 810 | 1849 | 27663 | 8971 | 10685 | 11483 | 8233 | 5931 | 4620 | 4002 | 3218 | 2549 | 1197 | 1146 | 1137 | 825 | 697 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1885 | 1270 | 1270 | 1810 | 1810 | 1810 | 1810 | 2051 | 2056 | 2051 | 1840 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
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