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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 pm Saturday 02 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
27.8° C
(Which is slightly cooler than normal)How big are the waves at Boat Basin Lefts today?
The current surf forecast for Boat Basin Lefts at 4AM is: 2.0m 9s primary swell from a East direction and 0.1m 8s secondary swell from a North direction (forecast issued at 09:00pm May 02). An open ocean swell of 0.1m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 May) | 6.5ft (2.0m) | 9s |
| Afternoon (03 May) | 6ft (1.9m) | 9s |
| Evening (03 May) | 6ft (1.8m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 28°C on Sat night, min 27°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||||
Sat 2 | Sunday 3 | Monday 4 | Tuesday 5 | |||||||||||||||||||||
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 | 1 PM | 4 PM | |
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 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | |
562 | 646 | 661 | 675 | 690 | 690 | 614 | 553 | 553 | 541 | 533 | 509 | 554 | 554 | 580 | 664 | 675 | 758 | 758 | 830 | 830 | 742 | 742 | 830 | |
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 | 9:21PM0.86m | 7:26AM0.84m | 10:05PM0.86m | 7:53AM0.83m | 10:50PM0.85m | 8:21AM0.81m | ||||||||||||||||||
Low Tide | 2:31AM0.62m | 2:43PM0.11m | 3:09AM0.64m | 3:18PM0.11m | 3:47AM0.66m | 3:56PM0.12m | ||||||||||||||||||
 | |  | |  | | | | | | | |  | |  | |  | | | | | | | | |
 | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — |
 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | — | 1 | — | — | — | — | |
Temp °C | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 |
27 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | N 7 | N 9 | N 9 | N 8 | N 8 | N 14 | NE 14 | NE 14 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 12 | NNE 12 | NNE 12 | NNE 12 | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 |
 kJ | 1 | 2 | 2 | 1 | 1 | 4 | 8 | 7 | 17 | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 21 | 22 | 22 | 19 | 19 | 18 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | N 9 | S 9 | S 9 | S 9 | N 14 | N 8 | N 8 | N 8 | N 8 | N 9 | NW 10 | NW 10 | N 14 | N 13 | NNW 12 | NNW 11 | NNE 12 | NNE 12 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 11 |
| kJ | 2 | 2 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 2 | 4 | 4 | 4 | 3 | 13 | 12 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 |
Swell 3 Height (m) Direction Period (s) | S 10 | N 10 | — | N 15 | S 9 | N 10 | S 9 | S 9 | W 11 | NW 10 | N 8 | N 8 | NW 10 | NW 9 | N 8 | N 8 | N 8 | — | — | — | — | — | — | — |
| kJ | 2 | 2 | — | 4 | 2 | 2 | 2 | 2 | 2 | 4 | 1 | 1 | 4 | 3 | 1 | 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 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 562 | 646 | 661 | 675 | 690 | 690 | 614 | 553 | 553 | 541 | 533 | 509 | 554 | 554 | 580 | 664 | 675 | 758 | 758 | 830 | 830 | 742 | 742 | 830 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1864 | 1858 | 1304 | 1304 | 1304 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1837 | 1836 | 1836 | 1836 | 1836 | 1290 | 1290 | 1836 | 1836 | 1864 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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