Surf Forecasts:
How big are the waves at Boat Basin Lefts today (29 Sep):
- Morning surf: Morning surf (29 Sep, local time) - 1.5ft (0.4m), 8s period with NNE swell.
- Afternoon surf: Afternoon surf (29 Sep, local time) - 1.5ft (0.4m), 8s period with NNE swell.
- Evening surf: Evening surf (29 Sep, local time) - 1.5ft (0.4m), 9s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 7AM is: 0.4m 8s primary swell from a North-northeast direction (forecast issued at 03:00am September 29). An open ocean swell of 0.5m 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 (29 Sep) | 1.5ft (0.4m) | 8s |
| Afternoon (29 Sep) | 1.5ft (0.4m) | 8s |
| Evening (29 Sep) | 1.5ft (0.4m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Tue afternoon. Warm (max 29°C on Tue morning, min 28°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 29 | Wednesday 30 | Thursday 1 | ||||||||||||||||||||||
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) | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | WNW 10 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NE 8 | NW 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 25 | 24 | 23 | 26 | 22 | 22 | 28 | 27 | 29 | 30 | 26 | 36 | 53 | 116 | 103 | 96 | 92 | 47 | 64 | 34 | 69 | 50 | 41 | 33 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 9:41AM0.88m | 8:44PM0.90m | 10:40AM0.87m | 9:15PM0.89m | 11:45AM0.84m | 9:50PM0.88m | ||||||||||||||||||
Low Tide | 3:02AM0.19m | 3:15PM0.52m | 3:45AM0.14m | 3:57PM0.58m | 4:32AM0.11m | 4:43PM0.64m | ||||||||||||||||||
 | |  |  | | |  | | | |  | | | | |  | | | | | | | | | |
 | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:10 | — | — |
mm | 1 | 2 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 1 | 1 | — | — |
Temp °C | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 32 | 32 | 32 | 33 | 32 | 31 | 32 | 33 | 31 | 31 | 31 | 32 | 31 | 31 | 32 | 33 | 31 | 31 | 30 | 32 | 31 | 31 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SSE 7 | ENE 9 | ENE 9 | ENE 9 | WNW 10 | SSW 6 | SW 6 | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 8 |
| kJ | 28 | 33 | 24 | 24 | 31 | 31 | 28 | 21 | 29 | 30 | 26 | 36 | 19 | 28 | 29 | 64 | 62 | 51 | 52 | 52 | 51 | 51 | 71 | 126 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | NNE 8 | NNE 8 | S 6 | S 6 | ENE 9 | ENE 9 | SE 7 | SW 6 | SW 6 | SSW 6 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NE 8 | NW 10 | NW 10 | NW 10 | NW 10 | NE 8 | NE 8 |
| kJ | 16 | 16 | 23 | 26 | 11 | 10 | 28 | 27 | 13 | 8 | 8 | 13 | 53 | 116 | 103 | 96 | 92 | 28 | 64 | 34 | 69 | 50 | 41 | 32 |
Swell 3 Height (m) Direction Period (s) | NNE 9 | NNE 8 | SW 6 | SW 6 | NNE 8 | NNE 8 | SSW 6 | SSW 6 | SW 5 | SE 7 | NW 9 | ENE 9 | ENE 9 | NE 8 | SSE 6 | NNE 8 | NE 7 | NW 10 | NE 7 | NE 7 | NE 7 | NE 8 | NW 10 | NW 10 |
| kJ | 25 | 24 | 9 | 8 | 22 | 22 | 13 | 12 | 7 | 13 | 23 | 28 | 27 | 16 | 12 | 22 | 27 | 47 | 26 | 26 | 26 | 20 | 34 | 33 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 2 | — | — | — | W 3 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 3 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 16 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 16 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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