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Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am Friday 24 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
27.8° 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 12PM is: 0.6m 15s primary swell from a North-northeast direction and 0.6m 11s secondary swell from a Northeast direction, 1.3m 6s secondary swell from a East direction (forecast issued at 09:00am April 24). The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 2ft (0.6m) | 16s |
| Afternoon (24 Apr) | 2.5ft (0.8m) | 15s |
| Evening (24 Apr) | 2.5ft (0.8m) | 15s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 28°C on Fri morning, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Mon 27 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NNE 16 | NNE 16 | NNE 15 | NNE 15 | NNE 15 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | |
142 | 191 | 186 | 256 | 246 | 239 | 236 | 236 | 233 | 229 | 175 | 145 | 139 | 135 | 135 | 133 | 153 | 153 | 180 | 204 | 227 | 247 | 254 | 254 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 11:50AM0.78m | 3:37AM0.86m | 1:21PM0.74m | 4:21AM0.86m | 3:06PM0.71m | |||||||||||||||||||
Low Tide | 7:53AM0.70m | 7:45PM0.18m | 9:20AM0.65m | 8:50PM0.25m | 10:28AM0.57m | 9:52PM0.32m | ||||||||||||||||||
 | | | |  | | | | | | | | | |  | |  | | | | | | | | |
 | 6:03 | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 |
 | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | 6:35 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 27 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 |
28 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 28 | 27 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 26 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | NNE 10 | NNE 16 | NE 11 | NNE 15 | NNE 15 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 12 | NNE 12 | NNE 12 | NNE 12 | NNE 14 |
 kJ | 65 | 191 | 94 | 256 | 246 | 239 | 236 | 236 | 233 | 229 | 175 | 145 | 139 | 135 | 135 | 133 | 133 | 95 | 93 | 85 | 82 | 81 | 83 | 115 |
Swell 2 Height (m) Direction Period (s) | NNE 16 | NNE 10 | NNE 15 | NE 10 | NNE 10 | NNE 10 | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 9 | NE 10 | NE 8 | NNW 8 | NNW 8 | NW 7 | NNW 7 | NNE 15 | NNE 15 | NNE 15 | N 18 |
| kJ | 142 | 64 | 186 | 89 | 67 | 71 | 46 | 45 | 41 | 39 | 29 | 27 | 25 | 26 | 15 | 11 | 6 | 6 | 2 | 5 | 22 | 21 | 21 | 6 |
Swell 3 Height (m) Direction Period (s) | NE 12 | NE 11 | SE 13 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | NW 9 | NW 8 | NW 8 | NNW 8 | NNW 8 | SE 11 | N 16 | NE 16 | NE 16 | NW 7 | NW 7 | NW 10 | NW 10 |
| kJ | 35 | 32 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 3 | 3 | 6 | 6 | 5 | 5 | 10 | 10 | 2 | 2 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 6 | E 6 | E 7 | E 6 | E 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 120 | 143 | 139 | 139 | 120 | 124 | 104 | 101 | 101 | 104 | 100 | 104 | 107 | 114 | 118 | 128 | 153 | 153 | 180 | 204 | 227 | 247 | 254 | 254 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1373 | 1373 | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1373 | 1373 | 1864 | 1839 | 1836 | 1836 | 1836 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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