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Surf Forecasts:
Threes surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 pm Sunday 10 May 2026 ChSTForecast update in hr min s Forecast update imminent
Threes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Threes sea temperature is
28.5° C
(Which is normal for this time of year)How big are the waves at Threes today?
The current surf forecast for Threes at 1AM is: 0.1m 10s primary swell from a North direction (forecast issued at 09:00pm May 10). An open ocean swell of 0.1m 10s is not directed at the surf break, a second open ocean swell of 2.3m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 0.5ft (0.1m) | 9s |
| Afternoon (11 May) | 0.5ft (0.1m) | 9s |
| Evening (11 May) | - | - |
Table - waves today at Threes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue night. Warm (max 28°C on Mon afternoon, min 27°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun night, light winds from the SSW by Wed morning). | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wednesday 13 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SW 6 | E 10 | N 10 | E 10 | E 10 | N 9 | N 9 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | NW 10 | NW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | |
1 | 0 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 3 | 8 | 7 | 15 | 14 | 13 | 13 | 12 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross | cross-off | |
High Tide | 3:27AM0.68m | 2:04PM0.54m | 3:58AM0.69m | 3:38PM0.55m | 4:27AM0.71m | |||||||||||||||||||
Low Tide | 7:52PM0.08m | 9:27AM0.41m | 8:50PM0.12m | 10:14AM0.31m | 9:47PM0.18m | 10:57AM0.19m | ||||||||||||||||||
 | |  |  |  |  | |  | | | | | | | | |  | | | | | | | | |
 | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — |
 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 |
2 | 2 | — | — | — | 2 | 2 | — | 1 | 1 | 1 | 1 | 2 | 1 | — | — | — | — | 2 | 3 | — | — | 1 | 3 | |
Temp °C | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 |
29 | 28 | 27 | 27 | 27 | 28 | 27 | 30 | 29 | 30 | 30 | 30 | 29 | 30 | 31 | 31 | 32 | 32 | 30 | 30 | 29 | 31 | 32 | 31 | |
Swell 1 Height (m) Direction Period (s) | SW 6 | — | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | — | SE 9 | SE 9 | SE 9 | SE 12 | SE 12 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
 kJ | 1 | — | 4 | 4 | 4 | 4 | 4 | — | 3 | 3 | 3 | 5 | 5 | 480 | 425 | 425 | 367 | 320 | 327 | 327 | 280 | 280 | 282 | 282 |
Swell 2 Height (m) Direction Period (s) | — | — | N 10 | — | — | N 9 | N 9 | — | — | — | SE 9 | SE 9 | SE 9 | SE 12 | SE 12 | SE 11 | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 |
| kJ | — | — | 2 | — | — | 1 | 1 | — | — | — | 3 | 3 | 3 | 5 | 21 | 20 | 17 | 30 | 30 | 30 | 30 | 18 | 30 | 18 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 9 | SE 9 | SE 9 | SE 9 | NW 10 | NW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 3 | 4 | 3 | 8 | 7 | 15 | 14 | 13 | 13 | 12 |
Wind waves Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 876 | 900 | 963 | 963 | 882 | 882 | 864 | 864 | 766 | 695 | 627 | 563 | 549 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1859 | 1810 | 1810 | 1810 | 1810 | 1810 | 1810 | 1891 | 1885 | 1885 | 23 | 23 | 1270 | 1270 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 15 | 15 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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