Surf Forecasts:
How big are the waves at Boat Basin Lefts today (13 Sep):
- Afternoon surf: Afternoon surf (13 Sep, local time) - 2.5ft (0.8m), 12s period with ENE swell.
- Evening surf: Evening surf (13 Sep, local time) - 3ft (0.9m), 12s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 9PM is: 0.9m 12s primary swell from a East-northeast direction (forecast issued at 03:00pm September 13). An open ocean swell of 0.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | - | - |
| Afternoon (13 Sep) | 2.5ft (0.8m) | 12s |
| Evening (13 Sep) | 3ft (0.9m) | 12s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Wed morning. Warm (max 29°C on Sun afternoon, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | ||||||||||||||||||
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) | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 13 | ENE 13 | NE 9 | ENE 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 205 | 198 | 195 | 206 | 294 | 294 | 243 | 239 | 261 | 238 | 229 | 180 | 180 | 180 | 226 | 226 | 181 | 181 | 131 | 131 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | glassy | glassy | glassy | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:59PM0.90m | 9:53AM0.85m | 9:23PM0.88m | 10:48AM0.81m | 9:47PM0.86m | |||||||||||||||
Low Tide | 2:59PM0.39m | 3:31AM0.28m | 3:35PM0.47m | 4:10AM0.24m | 4:10PM0.54m | |||||||||||||||
 | |  |  | | |  |  | | | | | |  | | | | | | | |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 6:23 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | 1 | 1 | 1 | — | — | — | — | — | 1 | — | 1 | 2 | 1 | — | — | — | — | 2 | 2 | — |
Temp °C | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 29 | 28 | 27 | 27 | 27 | 27 | 26 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 33 | 32 | 32 | 33 | 32 | 32 | 32 | 32 | 34 | 32 | 30 | 31 | 31 | 31 | 28 | 32 | 32 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NE 9 | NE 9 | NE 9 | NE 8 |
| kJ | 205 | 198 | 195 | 206 | 294 | 294 | 243 | 239 | 261 | 238 | 229 | 180 | 180 | 180 | 226 | 226 | 129 | 126 | 107 | 100 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 34 | 34 | 46 | 45 | 45 | 45 | 58 | 58 | 58 | 58 | 56 | 55 | 54 | 73 | 75 | 75 | 94 | 92 | 83 | 67 |
Swell 3 Height (m) Direction Period (s) | NNE 8 | NNE 8 | NNE 8 | NNE 8 | WSW 6 | ENE 15 | ENE 15 | ENE 16 | WSW 6 | WSW 7 | ENE 14 | ENE 14 | ENE 14 | ENE 14 | SW 7 | SW 7 | ENE 13 | ENE 13 | ENE 13 | ENE 13 |
| kJ | 21 | 24 | 23 | 25 | 4 | 22 | 22 | 24 | 3 | 4 | 65 | 66 | 76 | 74 | 7 | 7 | 181 | 181 | 131 | 131 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1905 | 2064 | 2064 | 1858 | 0 | 0 | 0 | 1836 | 11 | 11 | 2064 | 1836 | 1290 | 1836 | 1290 | 1836 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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