Surf Forecasts:
How big are the waves at Boat Basin Lefts today (09 Sep):
- Morning surf: Morning surf (09 Sep, local time) - 3ft (0.9m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (09 Sep, local time) - 3.5ft (1.0m), 9s period with WNW swell.
- Evening surf: Evening surf (09 Sep, local time) - 3ft (0.9m), 9s period with WNW swell.
The current surf forecast for Boat Basin Lefts at 1AM is: 1.1m 9s primary swell from a West-northwest direction and 0.4m 13s secondary swell from a North-northeast direction, 0.4m 3s secondary swell from a North-northwest direction (forecast issued at 09:00pm September 08). The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Sep) | 3ft (0.9m) | 10s |
| Afternoon (09 Sep) | 3.5ft (1.0m) | 9s |
| Evening (09 Sep) | 3ft (0.9m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Wed morning. Warm (max 29°C on Wed morning, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | ||||||||||||||||
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) | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | E 14 | E 14 | E 14 | E 14 | E 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 158 | 113 | 212 | 163 | 163 | 163 | 163 | 164 | 130 | 119 | 116 | 113 | 107 | 98 | 96 | 94 | 94 | 138 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:48PM0.87m | 4:51AM0.86m | 7:18PM0.89m | 6:01AM0.87m | 7:46PM0.90m | |||||||||||||
Low Tide | 11:58PM0.64m | 12:11PM0.13m | 00:47AM0.57m | 12:58PM0.17m | ||||||||||||||
 |  |  | |  |  | | | | | | | | | | | | | |
 | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:25 | — | — |
mm | 1 | — | — | — | — | 1 | 2 | 1 | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 29 | 29 | 29 | 28 | 28 |
Feels °C | 31 | 31 | 31 | 30 | 29 | 31 | 31 | 32 | 31 | 31 | 31 | 30 | 31 | 32 | 32 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 158 | 113 | 212 | 163 | 163 | 163 | 163 | 164 | 130 | 119 | 116 | 113 | 84 | 76 | 76 | 76 | 75 | 76 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | NW 11 | NNE 13 | NNE 13 | NNE 12 | NNE 12 | NNE 12 | NNE 12 | NNE 12 | NNE 12 | ENE 15 | ENE 15 | ENE 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 28 | 59 | 57 | 55 | 50 | 49 | 48 | 47 | 46 | 46 | 72 | 71 | 78 | 82 | 73 | 72 | 70 | 53 |
Swell 3 Height (m) Direction Period (s) | NNE 13 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SE 10 | ENE 9 | ENE 15 | ENE 9 | NNE 11 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 |
| kJ | 59 | 28 | 28 | 28 | 28 | 28 | 28 | 25 | 28 | 72 | 25 | 42 | 107 | 98 | 96 | 94 | 94 | 138 |
Wind waves Height (m) Direction Period (s) | NNE 2 | — | NNW 3 | NNW 3 | NNW 3 | N 4 | N 4 | ENE 9 | NE 3 | ENE 9 | ENE 6 | ENE 9 | — | — | — | — | — | — |
| kJ | 1 | — | 2 | 6 | 7 | 6 | 6 | 47 | 4 | 68 | 22 | 84 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 2066 | 2064 | 2064 | 1958 | 2064 | 2064 | 24 | 2064 | 1858 | 2064 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
Header Global | ||||||||||||||||||
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