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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 3 am Tuesday 14 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
28.1° 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 10AM is: 5.0m 15s primary swell from a East-northeast direction and 2.4m 12s secondary swell from a North-northeast direction, 5.0m 10s secondary swell from a North-northwest direction (forecast issued at 03:00am April 14). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Apr) | 16ft (5.0m) | 15s |
| Afternoon (14 Apr) | 18ft (5.5m) | 11s |
| Evening (14 Apr) | 16ft (5.0m) | 13s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 14 | Wednesday 15 | Thursday 16 | ||||||||||||||||||||||
| 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 | 7 PM | 10 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 15 | 14 | 11 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 19456 | 16365 | 13164 | 10587 | 8485 | 8294 | 8591 | 9441 | 12655 | 14037 | 15157 | 13960 | 12090 | 9730 | 8317 | 7747 | 7522 | 6416 | 5850 | 6124 | 7956 | 7475 | 8200 | 7493 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 5:44AM 0.85 | 5:07PM 0.76 | 6:06AM 0.87 | 6:16PM 0.81 | 6:30AM 0.89 | 7:19PM 0.86 | ||||||||||||||||||
Low Tide / height (m) | 10:40PM 0.31 | 11:47AM 0.51 | 11:31PM 0.34 | 12:23PM 0.41 | 12:20AM 0.38 | 1:00PM 0.30 | ||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | ||||||||||||||||||||||
| Sunrise | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:34 | - | - |
 |  |  | | | | | | | | | | | | | | | | | | | | |  | |
Rain (mm) | 5 | 10 | 13 | 17 | 16 | 21 | 13 | 8 | 15 | 4 | 4 | 3 | 2 | 3 | 2 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | - |
| Temp. °C | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Feels °C (?) | 20 | 19 | 19 | 18 | 18 | 17 | 18 | 17 | 17 | 20 | 19 | 20 | 21 | 21 | 23 | 22 | 23 | 23 | 24 | 24 | 24 | 25 | 26 | 26 |
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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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