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Surf Forecasts:
Threes surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 pm Friday 17 Apr 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
28.0° C
(Which is normal for this time of year)How big are the waves at Threes today?
The current surf forecast for Threes at 12AM is: 2.5m 12s primary swell from a North-northwest direction (forecast issued at 09:00pm April 17). An open ocean swell of 0.4m 9s is not directed at the surf break, a second open ocean swell of 1.1m 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 (18 Apr) | 8ft (2.4m) | 12s |
| Afternoon (18 Apr) | 7ft (2.1m) | 12s |
| Evening (18 Apr) | 6ft (1.9m) | 12s |
Table - waves today at Threes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2693 | 2291 | 2200 | 2037 | 1679 | 1412 | 1358 | 1180 | 1138 | 985 | 985 | 861 | 1037 | 942 | 898 | 883 | 927 | 946 | 839 | 726 | 700 | 591 | 493 | 501 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | glass | glass | cross | cross | glass | glass | glass | glass | glass | off | glass | glass |
High Tide / height (m) | 8:04PM 0.74 | 7:23AM 0.76 | 9:02PM 0.75 | 7:53AM 0.77 | 10:01PM 0.75 | 8:26AM 0.77 | ||||||||||||||||||
Low Tide / height (m) | 1:42AM 0.28 | 2:11PM -0.09 | 2:25AM 0.35 | 2:55PM -0.15 | 3:11AM 0.43 | 3:43PM -0.18 | ||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:34 |
 |  | | |  | | | | | |  | | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 |
| Feels °C (?) | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 30 | 30 | 30 | 29 | 30 | 31 | 30 | 31 | 31 | 32 | 31 | 31 | 30 | 29 | 31 | 30 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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