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Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am Tuesday 05 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 2PM is: 2.0m 9s primary swell from a East direction and 0.2m 9s secondary swell from a North-northwest direction, 0.2m 11s secondary swell from a North-northeast direction (forecast issued at 09:00am May 05). The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 May) | 7ft (2.1m) | 9s |
| Afternoon (05 May) | 6.5ft (2.0m) | 9s |
| Evening (05 May) | 6.5ft (2.0m) | 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 Tue night. Warm (max 28°C on Tue morning, min 27°C on Tue morning). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 5 | Wednesday 6 | Thursday 7 | Fri 8 | |||||||||||||||||||||
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 | ENE 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 | |
731 | 664 | 664 | 664 | 612 | 675 | 794 | 866 | 950 | 1052 | 1129 | 1216 | 1365 | 1424 | 1352 | 1281 | 1179 | 1179 | 1087 | 978 | 895 | 895 | 895 | 875 | |
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 | 8:21AM0.81m | 11:38PM0.83m | 8:51AM0.80m | 00:29AM0.82m | 9:22AM0.78m | 1:23AM0.81m | ||||||||||||||||||
Low Tide | 3:56PM0.12m | 4:27AM0.68m | 4:36PM0.14m | 5:13AM0.69m | 5:19PM0.17m | |||||||||||||||||||
 |  | | |  | |  | |  | | | |  | | | | | | | | | | | | |
 | 5:58 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 |
 | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | 6:37 |
— | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | — | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 |
28 | 26 | 28 | 28 | 27 | 27 | 26 | 27 | 26 | 26 | 27 | 25 | 25 | 26 | 26 | 27 | 27 | 26 | 27 | 29 | 27 | 27 | 26 | 27 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NW 8 | NW 8 | N 7 | N 10 | N 10 | N 10 | N 10 | N 9 | N 11 | N 10 | N 10 | NW 10 | NW 9 |
 kJ | 19 | 18 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NE 10 | NE 10 | N 10 | NE 10 | NE 10 | N 10 | N 11 | N 11 | N 10 | — | — | — | N 11 | N 11 | N 12 | — | — | N 12 |
| kJ | 12 | 11 | 11 | 11 | 11 | 11 | 4 | 4 | 2 | 4 | 4 | 2 | 2 | 2 | 2 | — | — | — | 2 | 2 | 3 | — | — | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | N 10 | — | — | — | — | — | — | — | — | S 12 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | ENE 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 | 731 | 664 | 664 | 664 | 612 | 675 | 794 | 866 | 950 | 1052 | 1129 | 1216 | 1365 | 1424 | 1352 | 1281 | 1179 | 1179 | 1087 | 978 | 895 | 895 | 895 | 875 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1836 | 1836 | 1864 | 1290 | 1839 | 1839 | 1836 | 1836 | 1836 | 1836 | 1836 | 1905 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1864 | 1836 | 1836 | 1836 | 1836 | 1290 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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