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Surf Forecasts:
Threes surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am Monday 30 Mar 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
28.3° C
(Which is slightly warmer than usual)How big are the waves at Threes today?
The current surf forecast for Threes at 2PM is: 0.6m 11s primary swell from a North direction and 0.8m 7s secondary swell from a North direction (forecast issued at 09:00am March 30). An open ocean swell of 0.7m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Mar) | 2.5ft (0.8m) | 11s |
| Afternoon (30 Mar) | 2.5ft (0.8m) | 7s |
| Evening (30 Mar) | 3.5ft (1.1m) | 12s |
Table - waves today at Threes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 30 | Tuesday 31 | Wednesday 01 | Thu 02 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 12 | 10 | 10 | 12 | 11 | 7 | 11 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 9 | 10 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 170 | 156 | 95 | 50 | 72 | 333 | 263 | 117 | 249 | 99 | 99 | 131 | 145 | 107 | 112 | 115 | 127 | 96 | 103 | 96 | 135 | 124 | 142 | 158 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:40AM 0.74 | 5:48PM 0.64 | 7:07AM 0.74 | 6:48PM 0.66 | 7:30AM 0.74 | 7:41PM 0.67 | ||||||||||||||||||
Low Tide / height (m) | 12:31PM 0.33 | 12:22AM 0.04 | 1:08PM 0.25 | 1:04AM 0.10 | 1:42PM 0.17 | 1:41AM 0.16 | ||||||||||||||||||
Monday 30 | Tuesday 31 | Wednesday 01 | Thu 02 | |||||||||||||||||||||
| Sunrise | 6:18 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - |
 | | | |  | | | | |  | | | |  | | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | - | - | - | 1 | 1 | - | - | 1 | - | - | - | - | - | - |
| Temp. °C | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 |
| Feels °C (?) | 30 | 29 | 30 | 30 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 27 | 28 | 28 | 28 |
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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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