
Surf Forecasts:
How big are the waves at Threes today (04 Sep):
- Morning surf: Morning surf (04 Sep, local time) - 8ft (2.5m), 9s period with W swell.
- Afternoon surf: Afternoon surf (04 Sep, local time) - 7ft (2.1m), 9s period with W swell.
- Evening surf: Evening surf (04 Sep, local time) - 6ft (1.9m), 9s period with W swell.
The current surf forecast for Threes at 5AM is: 2.5m 9s primary swell from a West direction and 0.3m 9s secondary swell from a Northeast direction (forecast issued at 09:00pm September 03). An open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Sep) | 8ft (2.5m) | 9s |
| Afternoon (04 Sep) | 7ft (2.1m) | 9s |
| Evening (04 Sep) | 6ft (1.9m) | 9s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 36mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 27°C on Thu night). Winds decreasing (fresh winds from the WSW on Thu night, calm by Sat night). | ||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | ||||||||||||||||
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 | WNW 11 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 |
Wave Graph | ||||||||||||||||||
619 | 656 | 1075 | 1153 | 1060 | 878 | 716 | 649 | 621 | 562 | 505 | 445 | 455 | 412 | 402 | 339 | 277 | 234 | |
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 | on | on | on | glassy |
High Tide | 11:01PM0.70m | 2:21PM0.60m | 11:45PM0.69m | 4:09PM0.63m | ||||||||||||||
Low Tide | 5:24PM0.44m | 6:39AM0.00m | 6:25PM0.52m | 7:52AM-0.02m | 8:05PM0.56m | |||||||||||||
— | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | |
mm | 3 | 3 | 3 | 1 | — | — | — | — | — | — | — | — | — | 1 | 2 | — | 1 | 9 |
Temp °C | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 |
Feels °C | 28 | 25 | 27 | 27 | 27 | 29 | 29 | 29 | 30 | 31 | 29 | 30 | 30 | 30 | 32 | 31 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | NE 9 | WNW 11 | NE 9 | NE 9 | SE 8 | W 9 | SE 8 | SSE 8 | SSE 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 |
29 | 656 | 20 | 12 | 15 | 878 | 17 | 26 | 27 | 562 | 505 | 445 | 455 | 412 | 402 | 339 | 277 | 234 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 7 | SE 7 | NE 8 | SE 8 | NE 8 | SE 11 | SE 11 | SE 8 | SSE 8 | SSE 8 | SE 10 | SSE 8 | SE 10 | SE 10 | SE 10 | SE 10 |
19 | 27 | 14 | 14 | 11 | 15 | 11 | 19 | 18 | 18 | 27 | 28 | 37 | 26 | 79 | 79 | 79 | 60 | |
Swell 3 Height (m) Direction Period (s) | E 9 | NE 9 | SE 9 | SE 9 | E 9 | NE 8 | E 9 | NE 8 | ENE 9 | SE 11 | SE 11 | SE 10 | SE 8 | SE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 8 |
7 | 29 | 13 | 13 | 6 | 11 | 6 | 11 | 16 | 18 | 29 | 28 | 18 | 36 | 16 | 16 | 16 | 14 | |
Wind waves Height (m) Direction Period (s) | W 8 | SW 6 | W 9 | W 9 | W 9 | — | W 9 | W 9 | W 9 | — | — | — | — | — | — | — | — | — |
619 | 256 | 1075 | 1153 | 1060 | — | 716 | 649 | 621 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 255 | 255 | 1810 | 1810 | 1810 | 1810 | 2056 | 15 | 15 | 257 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 0 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
Header Global | ||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)










