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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am Thursday 14 May 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
28.6° 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 6PM is: 1.0m 9s primary swell from a East direction (forecast issued at 09:00am May 14). An open ocean swell of 0.3m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | 3.5ft (1.0m) | 9s |
| Afternoon (14 May) | 3.5ft (1.0m) | 9s |
| Evening (14 May) | 3.5ft (1.1m) | 9s |
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 Thu afternoon. Warm (max 29°C on Thu morning, min 27°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | Sun 17 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 9 | E 9 | |
202 | 166 | 166 | 166 | 162 | 196 | 234 | 229 | 224 | 225 | 225 | 225 | 220 | 196 | 219 | 253 | 313 | 343 | 343 | 298 | 347 | 448 | 482 | 562 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | 4:52AM0.90m | 6:23PM0.81m | 5:22AM0.91m | 7:28PM0.87m | 5:56AM0.92m | 8:27PM0.92m | ||||||||||||||||||
Low Tide | 11:49AM0.26m | 11:41PM0.53m | 12:30PM0.14m | 00:38AM0.59m | 1:14PM0.04m | 1:33AM0.64m | ||||||||||||||||||
 |  | |  |  |  | | | | | | | | | | | | | | | | | | | |
 | 5:54 | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 |
 | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:38 | — | — | — | 6:39 |
1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 27 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 |
30 | 30 | 31 | 32 | 31 | 30 | 29 | 28 | 28 | 28 | 28 | 29 | 30 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 27 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | N 10 | N 10 | SE 11 | NNE 10 | NNE 10 |
 kJ | 202 | 166 | 166 | 166 | 162 | 27 | 39 | 38 | 37 | 37 | 37 | 37 | 36 | 35 | 22 | 21 | 19 | 19 | 19 | 8 | 8 | 18 | 10 | 10 |
Swell 2 Height (m) Direction Period (s) | SSW 5 | SE 10 | SE 10 | SE 11 | SE 10 | N 7 | S 6 | S 6 | N 7 | S 6 | N 10 | N 7 | N 10 | N 10 | N 10 | N 9 | N 11 | N 11 | N 11 | SE 11 | ESE 11 | N 10 | S 7 | N 5 |
| kJ | 5 | 17 | 17 | 18 | 17 | 9 | 3 | 3 | 4 | 3 | 8 | 1 | 2 | 8 | 7 | 6 | 9 | 9 | 9 | 19 | 12 | 8 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 10 | N 8 | S 5 | SSW 5 | SE 14 | SE 10 | N 7 | N 7 | S 6 | N 7 | N 7 | N 10 | NE 8 | S 6 | N 11 | N 11 | S 9 | N 7 | N 6 | S 9 | S 9 | — | — | — |
| kJ | 17 | 5 | 2 | 2 | 29 | 17 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 9 | E 9 |
| kJ | — | — | — | — | — | 196 | 234 | 229 | 224 | 225 | 225 | 225 | 220 | 196 | 219 | 253 | 313 | 343 | 343 | 298 | 347 | 448 | 482 | 562 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1908 | 1908 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1908 | 2069 | 2069 | 1866 | 1837 | 1836 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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