Surf Forecasts:
How big are the waves at Boat Basin Lefts today (25 Sep):
- Afternoon surf: Afternoon surf (25 Sep, local time) - 1.5ft (0.4m), 8s period with NNW swell.
- Evening surf: Evening surf (25 Sep, local time) - 2ft (0.6m), 8s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 10PM is: 0.6m 8s primary swell from a East-northeast direction (forecast issued at 03:00pm September 25). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Sep) | - | - |
| Afternoon (25 Sep) | 1.5ft (0.4m) | 8s |
| Evening (25 Sep) | 2ft (0.6m) | 8s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Sun afternoon. Warm (max 29°C on Fri afternoon, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Fri 25 | Saturday 26 | Sunday 27 | ||||||||||||||||||
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) | NNW 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 30 | 27 | 27 | 47 | 26 | 54 | 55 | 47 | 55 | 35 | 26 | 36 | 37 | 61 | 54 | 36 | 32 | 31 | 32 | 31 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | glassy | glassy | on | on | cross-on | on | on | glassy | glassy |
High Tide | 7:13PM0.86m | 6:58AM0.84m | 7:33PM0.88m | 7:52AM0.86m | 7:54PM0.89m | |||||||||||||||
Low Tide | 12:37PM0.29m | 1:11AM0.44m | 1:17PM0.33m | 1:46AM0.35m | 1:56PM0.38m | |||||||||||||||
 | |  |  | |  |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 6:15 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:14 | — | — |
mm | 1 | 1 | 1 | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | 3 | 5 | 1 |
Temp °C | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 |
Feels °C | 33 | 33 | 33 | 32 | 32 | 32 | 33 | 32 | 33 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 32 | 33 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | ENE 10 | SSW 7 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 |
| kJ | 31 | 31 | 31 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 23 | 23 | 24 | 61 | 25 | 32 | 32 | 32 | 33 | 37 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | SW 7 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | SSE 7 |
| kJ | 27 | 27 | 27 | 47 | 26 | 54 | 55 | 47 | 55 | 35 | 25 | 36 | 37 | 22 | 54 | 36 | 32 | 31 | 32 | 26 |
Swell 3 Height (m) Direction Period (s) | NNW 9 | NNW 8 | NW 8 | NNW 8 | NNW 8 | N 10 | SE 9 | N 10 | N 9 | N 9 | N 9 | N 9 | N 8 | WSW 6 | N 9 | N 9 | N 9 | N 9 | SSE 6 | ENE 9 |
| kJ | 30 | 27 | 17 | 13 | 13 | 18 | 20 | 16 | 27 | 14 | 26 | 25 | 12 | 8 | 25 | 25 | 25 | 24 | 14 | 31 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 229 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 0 | 0 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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