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Surf Forecasts:
Threes surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am Sunday 24 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
28.6° C
(Which is normal for this time of year)How big are the waves at Threes today?
The current surf forecast for Threes at 2PM is: 0.1m 9s primary swell from a Northeast direction (forecast issued at 09:00am May 24). An open ocean swell of 0.4m 10s is not directed at the surf break, a second open ocean swell of 1.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | 0.5ft (0.2m) | 8s |
| Afternoon (24 May) | 0.5ft (0.1m) | 8s |
| Evening (24 May) | 0.5ft (0.1m) | 8s |
Table - waves today at Threes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Tue night. Warm (max 28°C on Sun morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 24 | Monday 25 | Tuesday 26 | Wed 27 | |||||||||||||||||||||
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 | 1 AM | 4 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NNE 9 | NNE 8 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | N 8 | N 11 | N 11 | N 13 | N 12 | N 12 | N 12 | N 11 | N 11 | N 11 | N 10 | N 10 | N 10 | N 10 | NNE 13 | NNE 13 | |
7 | 7 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 2 | 2 | 3 | 3 | 11 | 24 | 39 | 37 | 55 | 51 | 51 | 54 | 53 | 66 | 64 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | |
High Tide | 1:44PM0.54m | 3:29AM0.73m | 3:26PM0.53m | 4:04AM0.73m | 4:56PM0.55m | |||||||||||||||||||
Low Tide | 9:01AM0.38m | 8:19PM0.11m | 10:02AM0.28m | 9:20PM0.20m | 10:51AM0.18m | 10:18PM0.29m | ||||||||||||||||||
 |  | | |  |  | | | | | | | | | | | | | | | | | | | |
 | 5:54 | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 |
 | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:42 | — | — | — | 6:43 |
3 | — | — | — | — | 1 | 1 | — | — | 1 | — | — | 1 | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 3 | |
Temp °C | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 27 | 26 |
28 | 29 | 29 | 29 | 30 | 28 | 28 | 27 | 27 | 28 | 29 | 29 | 30 | 28 | 28 | 28 | 28 | 27 | 29 | 29 | 28 | 29 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | NNE 9 | SE 10 | SE 10 | NE 8 | NE 8 | NE 8 | NE 8 | SE 10 | ESE 9 | SE 14 | SE 10 | SE 9 | SE 9 | N 12 | N 12 | N 11 | N 11 | N 11 | N 10 | N 10 | N 10 | N 10 | NNE 10 | NNE 13 |
 kJ | 7 | 25 | 25 | 3 | 3 | 2 | 2 | 4 | 8 | 8 | 15 | 3 | 3 | 11 | 24 | 39 | 37 | 55 | 51 | 51 | 54 | 53 | 33 | 64 |
Swell 2 Height (m) Direction Period (s) | S 10 | NNE 8 | NE 9 | SE 15 | SE 10 | SE 10 | SE 10 | NE 8 | SE 14 | N 11 | SE 14 | SE 14 | SE 14 | SE 14 | SE 14 | SE 14 | SE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 13 | NNE 10 |
| kJ | 2 | 7 | 3 | 9 | 4 | 4 | 4 | 2 | 8 | 2 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 20 | 18 | 20 | 37 | 36 | 66 | 33 |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 15 | SE 15 | S 5 | SE 15 | SE 15 | SE 15 | SE 15 | N 8 | S 10 | N 11 | N 13 | N 12 | N 10 | N 10 | N 10 | N 15 | SE 13 | SE 13 | SSW 8 | SW 8 | SW 7 | SW 7 | SSW 7 |
| kJ | 9 | 9 | 9 | 1 | 9 | 9 | 9 | 8 | 1 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 4 | 7 | 7 | 7 | 9 | 9 | 7 | 5 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 9 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 363 | 298 | 339 | 380 | 381 | 328 | 332 | 317 | 291 | 386 | 214 | 218 | 287 | 317 | 317 | 360 | 360 | 356 | 411 | 415 | 368 | 422 | 461 | 461 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1810 | 1810 | 1886 | 1886 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1270 | 1810 | 0 | 0 | 1270 | 1270 | 0 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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