Surf Forecasts:
How big are the waves at Boat Basin Lefts today (28 Sep):
- Morning surf: Morning surf (28 Sep, local time) - 1.5ft (0.4m), 8s period with NNE swell.
- Afternoon surf: Afternoon surf (28 Sep, local time) - 1.5ft (0.4m), 9s period with NNE swell.
- Evening surf: Evening surf (28 Sep, local time) - 1.5ft (0.4m), 9s period with NNE swell.
The current surf forecast for Boat Basin Lefts at 6PM is: 0.4m 9s primary swell from a North-northeast direction (forecast issued at 09:00am September 28). An open ocean swell of 0.6m 6s is not directed at the surf break, a second open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Sep) | 1.5ft (0.4m) | 8s |
| Afternoon (28 Sep) | 1.5ft (0.4m) | 9s |
| Evening (28 Sep) | 1.5ft (0.4m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 16mm), heaviest on Wed afternoon. Warm (max 29°C on Mon morning, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||
Monday 28 | Tuesday 29 | Wednesday 30 | ||||||||||||||||||||
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 9 | NNE 8 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | SW 6 | SE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NW 10 | WNW 10 | NW 12 | NW 12 | NW 11 | NW 11 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 26 | 24 | 25 | 26 | 25 | 25 | 25 | 24 | 23 | 26 | 38 | 0 | 28 | 31 | 29 | 29 | 26 | 36 | 53 | 116 | 103 | 97 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-on | cross-on | cross-on | cross | cross | 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-on | cross-on | cross-on |
High Tide | 8:46AM0.88m | 8:18PM0.89m | 9:41AM0.88m | 8:44PM0.90m | 10:40AM0.87m | 9:15PM0.89m | ||||||||||||||||
Low Tide | 2:35PM0.45m | 3:02AM0.19m | 3:15PM0.52m | 3:45AM0.14m | 3:57PM0.58m | |||||||||||||||||
 |  | | |  | |  |  |  | | | | | | | | | | | | | | |
 | 6:09 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:12 | — | — |
mm | — | 1 | 1 | 1 | — | — | — | 1 | — | — | 1 | 1 | 1 | — | 1 | — | — | — | 1 | 1 | 2 | 1 |
Temp °C | 27 | 28 | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 28 | 28 | 28 |
Feels °C | 32 | 32 | 32 | 33 | 32 | 32 | 32 | 30 | 32 | 31 | 32 | 32 | 31 | 32 | 32 | 30 | 32 | 31 | 31 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | SSW 7 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 |
| kJ | 30 | 22 | 22 | 16 | 20 | 21 | 28 | 32 | 31 | 23 | 34 | 16 | 28 | 27 | 27 | 29 | 36 | 38 | 47 | 58 | 80 | 85 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SSE 7 | SSE 7 | NNE 9 | SSE 7 | SW 6 | SW 6 | SW 6 | NNE 8 | SE 7 | SE 8 | SE 8 | SE 7 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | WNW 10 | NW 12 | NW 12 | NW 11 | NW 11 |
| kJ | 23 | 19 | 19 | 26 | 21 | 16 | 16 | 16 | 23 | 26 | 31 | 28 | 26 | 31 | 29 | 29 | 26 | 36 | 53 | 116 | 103 | 97 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | NNE 8 | NNE 9 | SSE 7 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | WSW 6 | NNE 8 | NNE 8 | S 7 | ENE 9 | SSE 7 | SE 7 | SE 7 | NW 10 | SSE 6 | SSE 7 | NE 8 | NNE 8 | NNE 13 |
| kJ | 26 | 24 | 25 | 20 | 25 | 25 | 25 | 24 | 13 | 26 | 22 | 14 | 28 | 20 | 13 | 12 | 23 | 17 | 15 | 16 | 11 | 35 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 6 | SW 6 | — | — | — | — | — | — | — | — | SW 6 | SW 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | 46 | 38 | — | — | — | — | — | — | — | — | 91 | 136 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 16 | 16 | 11 | 16 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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