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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am 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
28.1° 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 5PM is: 2.2m 9s primary swell from a East direction and 0.1m 8s secondary swell from a Northwest direction (forecast issued at 09:00am 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) | 7.5ft (2.3m) | 9s |
| 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 ForecastHeavy rain (total 21mm), heaviest during Sat afternoon. Warm (max 29°C on Sun morning, min 25°C on Sat afternoon). Mainly fresh winds. | ||||||||||||||||||||||||
Friday 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | |
885 | 904 | 885 | 792 | 739 | 739 | 755 | 771 | 771 | 771 | 771 | 700 | 700 | 715 | 725 | 725 | 668 | 668 | 687 | 687 | 761 | 761 | 761 | 761 | |
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 | 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 | 9:59AM0.76m | 2:14AM0.82m | 10:49AM0.73m | 2:56AM0.83m | 12:08PM0.69m | 3:29AM0.85m | ||||||||||||||||||
Low Tide | 6:13AM0.70m | 6:04PM0.21m | 7:30AM0.69m | 6:53PM0.25m | 8:47AM0.65m | 7:46PM0.30m | ||||||||||||||||||
 |  | | |  | | | | |  | | |  |  | | | | | | |  | | | | |
 | 5:56 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 |
 | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | 6:37 |
— | — | — | — | — | — | — | — | — | 1 | 1 | 5 | 2 | — | — | — | 1 | — | 1 | 1 | 4 | 5 | — | — | |
Temp °C | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 29 | 28 | 27 | 26 | 26 | 26 |
27 | 27 | 27 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 28 | 26 | 24 | 26 | 28 | 28 | 28 | 29 | 30 | 30 | 30 | 28 | 28 | 27 | |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | S 6 | N 10 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | N 9 | N 9 | N 9 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | SE 10 | SE 10 |
 kJ | 9 | 15 | 15 | 13 | 13 | 12 | 8 | 7 | 7 | 7 | 7 | 6 | 3 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 1 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | NW 9 | NW 9 | NW 9 | NW 8 | NW 8 | N 11 | NW 8 | N 10 | N 10 | N 9 | N 10 | N 10 | N 9 | S 12 | S 6 | S 11 | S 8 | SW 6 | S 6 | S 6 | S 6 | N 10 | N 10 | — |
| kJ | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 8 | 8 | 7 | 7 | 7 | 6 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | — |
Swell 3 Height (m) Direction Period (s) | N 12 | N 12 | N 12 | N 11 | N 11 | NW 8 | — | NW 8 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 11 | S 8 | S 11 | SW 7 | S 7 | S 6 | — | — | — | — |
| kJ | 3 | 3 | 3 | 2 | 2 | 3 | — | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 | 1 | — | — | — | — |
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 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 |
| kJ | 885 | 904 | 885 | 792 | 739 | 739 | 755 | 771 | 771 | 771 | 771 | 700 | 700 | 715 | 725 | 725 | 668 | 668 | 687 | 687 | 761 | 761 | 761 | 761 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1836 | 1836 | 1905 | 1905 | 1905 | 1836 | 1836 | 1836 | 1836 | 1836 | 1290 | 0 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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