Surf Forecasts:
How big are the waves at Boat Basin Lefts today (27 Sep):
- Morning surf: Morning surf (27 Sep, local time) - 1.5ft (0.4m), 10s period with ENE swell.
- Afternoon surf: Afternoon surf (27 Sep, local time) - 1.5ft (0.4m), 9s period with ENE swell.
- Evening surf: Evening surf (27 Sep, local time) - 1.5ft (0.4m), 9s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 10AM is: 0.4m 10s primary swell from a East-northeast direction and 0.2m 2s secondary swell from a North-northeast direction (forecast issued at 03:00am September 27). An open ocean swell of 0.6m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Sep) | 1.5ft (0.4m) | 10s |
| Afternoon (27 Sep) | 1.5ft (0.4m) | 9s |
| Evening (27 Sep) | 1.5ft (0.4m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Sun morning. Warm (max 29°C on Sun morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 27 | Monday 28 | Tuesday 29 | ||||||||||||||||||||||
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 | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 6 | NNE 8 | NNE 9 | NNE 9 | ENE 9 | ENE 9 | ENE 9 | NNE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SW 6 | ENE 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 37 | 61 | 54 | 36 | 29 | 31 | 31 | 31 | 26 | 26 | 0 | 24 | 25 | 26 | 30 | 31 | 31 | 24 | 30 | 32 | 30 | 30 | 35 | 27 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-off | cross-off | cross-off | off | cross-off | cross | cross-on | cross-on | on | on | on | cross-on | glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:52AM0.86m | 7:54PM0.89m | 8:46AM0.88m | 8:18PM0.89m | 9:41AM0.88m | 8:44PM0.90m | ||||||||||||||||||
Low Tide | 1:46AM0.35m | 1:56PM0.38m | 2:23AM0.27m | 2:35PM0.45m | 3:02AM0.19m | 3:15PM0.52m | ||||||||||||||||||
 | |  | |  | | |  | |  |  | | | | | | | | | | | | | | |
 | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:12 | — | — |
mm | 2 | 2 | — | — | 3 | 2 | 2 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 |
Feels °C | 32 | 31 | 31 | 32 | 32 | 32 | 31 | 32 | 30 | 31 | 31 | 31 | 32 | 32 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 6 | ENE 10 | SW 6 | SSW 7 | SW 7 | SW 6 | SW 6 | SW 6 | WSW 6 | SW 6 | S 6 | S 7 | SW 6 | SSW 6 | SW 6 | SW 6 | SW 6 | SSE 7 | SW 6 | SSE 7 | SSE 8 | SSE 7 | SSE 7 | SSE 7 |
| kJ | 18 | 61 | 23 | 31 | 43 | 41 | 33 | 32 | 26 | 19 | 15 | 33 | 19 | 25 | 30 | 23 | 22 | 33 | 18 | 36 | 37 | 37 | 43 | 44 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | SW 6 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSE 7 | WSW 6 | SSE 7 | SSE 7 | NNE 9 | SSE 7 | SSE 7 | SSE 7 | SW 6 | SSE 7 | SSW 6 | SW 6 | SSW 6 | ENE 8 | SW 6 |
| kJ | 37 | 18 | 54 | 36 | 29 | 31 | 31 | 31 | 26 | 19 | 15 | 20 | 19 | 26 | 21 | 20 | 29 | 18 | 35 | 15 | 19 | 13 | 28 | 18 |
Swell 3 Height (m) Direction Period (s) | SE 8 | N 9 | N 9 | N 9 | N 9 | N 9 | N 9 | SSE 7 | SSE 7 | ENE 9 | SE 7 | NNE 8 | NNE 9 | SE 7 | ENE 9 | ENE 9 | ENE 9 | NNE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NNE 8 | ENE 8 |
| kJ | 11 | 13 | 25 | 25 | 25 | 24 | 24 | 21 | 18 | 26 | 12 | 24 | 25 | 14 | 30 | 31 | 31 | 24 | 30 | 32 | 30 | 30 | 22 | 27 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 2 | NE 3 | ENE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 2 | WSW 6 | SW 6 | WSW 3 |
| kJ | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 23 | 35 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 0 | 0 | 0 | 0 | 16 | 11 | 16 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 16 | 11 | 11 | 11 | 16 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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