Surf Forecasts:
How big are the waves at Threes today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 3.5ft (1.0m), 8s period with W swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 3.5ft (1.0m), 8s period with W swell.
- Evening surf: Evening surf (19 Aug, local time) - 3.5ft (1.0m), 8s period with W swell.
The current surf forecast for Threes at 3PM is: 1.0m 8s primary swell from a West direction and 1.1m 5s secondary swell from a North direction (forecast issued at 09:00am August 19). An open ocean swell of 0.6m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 3.5ft (1.0m) | 8s |
| Afternoon (19 Aug) | 3.5ft (1.0m) | 8s |
| Evening (19 Aug) | 3.5ft (1.0m) | 8s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Wed morning. Warm (max 29°C on Wed morning, min 28°C on Wed night). Winds decreasing (fresh winds from the N on Wed morning, light winds from the SE by Fri afternoon). | ||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||
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) | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | WNW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | NE 7 | WSW 8 | WSW 8 | NE 7 | NE 7 | NE 7 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 140 | 140 | 143 | 143 | 143 | 113 | 96 | 75 | 82 | 106 | 103 | 101 | 96 | 75 | 75 | 75 | 51 | 51 | 51 | 37 | 29 | 23 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | off |
High Tide | 1:07PM0.55m | 11:54PM0.67m | 2:40PM0.54m | 00:33AM0.65m | 4:17PM0.56m | |||||||||||||||||
Low Tide | 6:24AM0.12m | 5:58PM0.40m | 7:21AM0.10m | 6:52PM0.46m | 8:25AM0.09m | 8:12PM0.51m | ||||||||||||||||
 | |  | |  |  | | |  |  | | |  | | | | | | | | | | |
 | 6:09 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | 4 | 2 | — | — | — | 2 | 2 | 2 | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 |
Feels °C | 28 | 29 | 29 | 29 | 31 | 30 | 30 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 32 | 33 | 33 | 34 | 32 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | WNW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | NE 7 | NE 7 | NE 7 | E 11 | E 10 | E 10 |
| kJ | 140 | 140 | 143 | 143 | 143 | 113 | 96 | 75 | 82 | 106 | 103 | 101 | 96 | 75 | 75 | 75 | 44 | 38 | 36 | 127 | 125 | 120 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SE 9 | SSE 9 | SE 9 | WSW 8 | WNW 8 | WNW 8 | WNW 8 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | WSW 8 | WSW 8 | WSW 8 | NE 7 | SSE 9 | SE 9 |
| kJ | 55 | 55 | 56 | 59 | 71 | 56 | 68 | 57 | 55 | 55 | 55 | 49 | 49 | 51 | 44 | 36 | 51 | 51 | 51 | 29 | 49 | 88 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | N 5 | N 5 | SE 9 | SSE 9 | SSE 9 | SE 9 | WNW 8 | WNW 8 | WNW 8 | SE 9 | SSE 8 | SSE 8 | W 9 | E 13 | WSW 8 | NE 7 | NE 7 |
| kJ | 14 | 14 | 14 | 14 | 14 | 17 | 13 | 67 | 54 | 54 | 38 | 55 | 40 | 39 | 46 | 40 | 40 | 40 | 117 | 37 | 29 | 23 |
Wind waves Height (m) Direction Period (s) | NW 4 | NNW 4 | N 4 | N 5 | NNE 4 | NE 4 | ENE 4 | NE 6 | NE 6 | NE 6 | ENE 6 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 19 | 33 | 50 | 51 | 41 | 20 | 15 | 45 | 45 | 39 | 24 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 1940 | 2056 | 2056 | 1270 | 2078 | 2063 | 2060 | 9 | 1940 | 2060 | 1270 | 2056 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 23 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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