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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 3 pm Thursday 19 Feb 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
28.2° C
(Which is slightly warmer than usual)How big are the waves at Boat Basin Lefts today?
The current surf forecast for Boat Basin Lefts at 7PM is: 1.1m 10s primary swell from a East direction and 0.6m 6s secondary swell from a North direction (forecast issued at 03:00pm February 19). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Feb) | - | - |
| Afternoon (19 Feb) | 3.5ft (1.1m) | 9s |
| Evening (19 Feb) | 3.5ft (1.1m) | 10s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||
| 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 | 7 AM | 10 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 9 | 8 | 9 | 8 | 8 | 11 | 12 | 12 | 12 | 12 | 11 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 225 | 217 | 226 | 220 | 188 | 181 | 205 | 201 | 205 | 173 | 177 | 209 | 196 | 210 | 201 | 196 | 148 | 184 | 226 | 339 | 327 | 242 | 221 | 198 |
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- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:48PM 0.87 | 9:50AM 0.91 | 9:45PM 0.85 | 10:13AM 0.91 | 10:46PM 0.82 | |||||||||||||||||||
Low Tide / height (m) | 3:16PM 0.48 | 3:21AM 0.25 | 3:58PM 0.40 | 3:57AM 0.34 | 4:42PM 0.33 | 4:34AM 0.43 | ||||||||||||||||||
Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - |
| Sunset | - | 6:27 | - | - | - | - | - | - | - | 6:27 | - | - | - | - | - | - | - | 6:27 | - | - | - | - | - | - |
 | |  |  |  | | |  | | | | | |  |  | | | | | | | | | | |
Rain (mm) | 4 | 1 | - | - | 1 | 2 | 1 | - | - | - | - | - | 3 | 1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 |
| Feels °C (?) | 31 | 31 | 29 | 30 | 30 | 27 | 27 | 27 | 28 | 29 | 29 | 27 | 27 | 27 | 27 | 27 | 29 | 28 | 30 | 28 | 29 | 30 | 29 | 29 |
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Boat Basin Lefts surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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