Surf Forecasts:
How big are the waves at Boat Basin Lefts today (16 Sep):
- Afternoon surf: Afternoon surf (16 Sep, local time) - 3.5ft (1.1m), 9s period with NE swell.
- Evening surf: Evening surf (16 Sep, local time) - 3.5ft (1.1m), 9s period with NE swell.
The current surf forecast for Boat Basin Lefts at 8PM is: 1.1m 9s primary swell from a Northeast direction and 0.7m 7s secondary swell from a North direction (forecast issued at 03:00pm September 16). An open ocean swell of 0.8m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | - | - |
| Afternoon (16 Sep) | 3.5ft (1.1m) | 9s |
| Evening (16 Sep) | 3.5ft (1.1m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 20mm), heaviest during Wed night. Warm (max 30°C on Wed afternoon, min 28°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | ||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | N 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 176 | 241 | 190 | 186 | 152 | 180 | 158 | 158 | 117 | 105 | 105 | 90 | 82 | 80 | 70 | 88 | 92 | 64 | 65 | 58 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on |
High Tide | 11:47AM0.78m | 10:11PM0.83m | 12:54PM0.75m | 10:37PM0.81m | 2:16PM0.73m | |||||||||||||||
Low Tide | 4:44PM0.60m | 5:34AM0.23m | 5:21PM0.64m | 6:23AM0.24m | 6:07PM0.67m | |||||||||||||||
 | |  | | |  |  | |  | | | | | | | | |  |  | | |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 6:22 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:20 | — | — |
mm | — | — | 2 | 3 | 4 | — | — | — | 1 | — | — | 1 | 1 | 1 | 2 | 1 | 1 | — | — | — |
Temp °C | 29 | 30 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 31 | 32 | 31 | 32 | 31 | 30 | 30 | 31 | 30 | 31 | 32 | 30 | 31 | 31 | 31 | 30 | 29 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | SSW 8 | SSW 8 | SW 8 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | NNE 9 | NNE 9 |
| kJ | 176 | 241 | 190 | 186 | 152 | 180 | 158 | 158 | 117 | 105 | 107 | 158 | 262 | 336 | 262 | 227 | 206 | 206 | 65 | 58 |
Swell 2 Height (m) Direction Period (s) | S 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | S 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | N 10 | NNE 9 | NNE 9 | NNE 9 | S 7 | S 7 |
| kJ | 50 | 80 | 82 | 82 | 80 | 112 | 98 | 98 | 69 | 51 | 105 | 90 | 82 | 80 | 70 | 88 | 92 | 64 | 23 | 22 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | ENE 13 | S 7 | N 6 | N 7 | S 7 | S 7 | S 7 | S 7 | SW 8 | WSW 8 | WSW 8 | NE 12 | NE 12 | NE 8 | SSE 7 | SSE 7 | S 7 | SE 9 | SE 9 |
| kJ | 151 | 151 | 25 | 37 | 42 | 28 | 33 | 33 | 47 | 69 | 46 | 27 | 35 | 35 | 24 | 15 | 15 | 23 | 20 | 19 |
Wind waves Height (m) Direction Period (s) | NW 3 | NW 3 | N 7 | — | SW 8 | SW 8 | SW 8 | — | — | W 3 | — | — | — | — | — | — | — | — | SW 8 | SW 8 |
| kJ | 2 | 2 | 43 | — | 132 | 191 | 151 | — | — | 1 | — | — | — | — | — | — | — | — | 201 | 244 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 11 | 16 | 16 | 229 | 16 | 231 | 16 | 16 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Boat Basin Lefts surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest