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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am Saturday 04 Apr 2026 ChSTForecast update in hr min s Forecast update imminent
Boat Basin Lefts surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Boat Basin Lefts sea temperature is
28.3° C
(Which is normal for this time of year)How big are the waves at Boat Basin Lefts today?
The current surf forecast for Boat Basin Lefts at 5PM is: 1.5m 9s primary swell from a East-northeast direction and 0.1m 15s secondary swell from a Northeast direction (forecast issued at 09:00am April 04). An open ocean swell of 0.1m 13s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Apr) | 4.5ft (1.3m) | 9s |
| Afternoon (04 Apr) | 4.5ft (1.4m) | 9s |
| Evening (04 Apr) | 5.5ft (1.7m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 04 | Sunday 05 | Monday 06 | Tue 07 | |||||||||||||||||||||
| 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) (?) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 232 | 308 | 308 | 308 | 351 | 436 | 477 | 463 | 468 | 585 | 612 | 642 | 651 | 727 | 677 | 659 | 755 | 882 | 917 | 1168 | 1181 | 1255 | 1186 | 1156 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | 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) | 8:24AM 0.86 | 10:05PM 0.85 | 8:46AM 0.84 | 10:54PM 0.83 | 9:09AM 0.82 | 11:46PM 0.80 | ||||||||||||||||||
Low Tide / height (m) | 3:14PM 0.20 | 3:28AM 0.56 | 3:48PM 0.18 | 4:03AM 0.60 | 4:25PM 0.17 | |||||||||||||||||||
Saturday 04 | Sunday 05 | Monday 06 | Tue 07 | |||||||||||||||||||||
| Sunrise | 6:15 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:32 | - | - | - | - |
 | | | |  | | |  |  | | | | | | | | | | |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | 2 | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - | - | - | - | - |
| Temp. °C | 26 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 26 |
| Feels °C (?) | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 25 | 27 | 25 | 26 | 26 | 25 | 27 | 26 | 25 |
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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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