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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 3 pm Friday 08 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
28.3° 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 9PM is: 2.1m 9s primary swell from a East direction and 0.1m 11s secondary swell from a North direction (forecast issued at 03:00pm May 08). An open ocean swell of 0.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | - | - |
| Afternoon (08 May) | 7ft (2.2m) | 9s |
| Evening (08 May) | 7ft (2.1m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Sun night. Warm (max 28°C on Fri afternoon, min 26°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||||||
Fri 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | |
885 | 792 | 723 | 747 | 763 | 755 | 771 | 771 | 771 | 771 | 715 | 730 | 725 | 654 | 668 | 740 | 745 | 673 | 745 | 745 | 745 | 673 | 673 | 755 | |
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-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 2:14AM0.82m | 10:49AM0.73m | 2:56AM0.83m | 12:08PM0.69m | 3:29AM0.85m | |||||||||||||||||||
Low Tide | 6:04PM0.21m | 7:30AM0.69m | 6:53PM0.25m | 8:47AM0.65m | 7:46PM0.30m | 9:45AM0.59m | ||||||||||||||||||
 |  |  | | | | | | |  | | |  |  |  | | | | | |  | | | | |
 | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — |
 | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | 6:37 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 1 | — | — | 1 | 1 | 6 | 4 | — | — | |
Temp °C | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 28 |
27 | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 30 | 29 | 28 | 28 | 29 | |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 6 | SSE 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | N 9 | N 9 | S 6 | N 9 | N 8 | N 8 | N 8 | N 8 | N 7 | N 7 | N 8 | N 10 | SE 10 | SE 10 |
 kJ | 15 | 13 | 13 | 12 | 7 | 7 | 7 | 7 | 7 | 3 | 6 | 6 | 3 | 6 | 5 | 5 | 5 | 5 | 4 | 1 | 1 | 2 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | NW 9 | NW 8 | N 11 | N 11 | N 10 | N 10 | N 10 | N 9 | N 10 | N 10 | S 6 | S 6 | N 9 | S 11 | S 11 | S 11 | S 6 | S 6 | S 6 | N 10 | SE 10 | SE 10 | N 10 | N 9 |
| kJ | 3 | 3 | 2 | 2 | 8 | 8 | 8 | 7 | 7 | 7 | 3 | 3 | 6 | 3 | 2 | 2 | 1 | 1 | 1 | 2 | 4 | 4 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | N 12 | N 11 | NW 8 | NW 8 | NW 8 | NW 8 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 6 | — | — | N 10 | — | — | — |
| kJ | 3 | 2 | 3 | 3 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | — | — | 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 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 885 | 792 | 723 | 747 | 763 | 755 | 771 | 771 | 771 | 771 | 715 | 730 | 725 | 654 | 668 | 740 | 745 | 673 | 745 | 745 | 745 | 673 | 673 | 755 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1905 | 1905 | 1905 | 1836 | 1836 | 1836 | 1290 | 1290 | 1885 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1836 | 1836 | 2069 | 1290 | 1290 | 0 | 1290 | 1836 | 1836 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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