Surf Forecasts:
How big are the waves at Boat Basin Lefts today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 4ft (1.2m), 9s period with ENE swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 2.5ft (0.7m), 13s period with ENE swell.
- Evening surf: Evening surf (15 Sep, local time) - 2ft (0.6m), 14s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 3AM is: 1.0m 9s primary swell from a East-northeast direction (forecast issued at 09:00pm September 14). An open ocean swell of 0.7m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 4ft (1.2m) | 9s |
| Afternoon (15 Sep) | 2.5ft (0.7m) | 13s |
| Evening (15 Sep) | 2ft (0.6m) | 14s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Mon night. Warm (max 29°C on Tue morning, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||||
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 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 13 | NE 9 | ENE 14 | ENE 14 | ENE 14 | ENE 14 | ENE 13 | ENE 10 | ENE 10 | NE 10 | NE 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 234 | 184 | 180 | 180 | 231 | 226 | 216 | 181 | 145 | 180 | 183 | 236 | 229 | 195 | 340 | 320 | 264 | 216 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross-off | glassy | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:23PM0.88m | 10:48AM0.81m | 9:47PM0.86m | 11:47AM0.78m | ||||||||||||||
Low Tide | 4:10AM0.24m | 4:10PM0.54m | 4:50AM0.22m | 4:44PM0.60m | ||||||||||||||
 | |  | |  |  | |  | | |  | | |  | | | | | |
 | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | 2 | 3 | — | — | — | 1 | 3 | — | — | — | — | — | — | 1 | 1 | 1 |
Temp °C | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 |
Feels °C | 31 | 31 | 31 | 32 | 33 | 33 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 31 | 31 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NE 8 | NE 9 | NE 8 | NE 8 | NE 9 | NE 9 | NE 9 | ENE 10 | ENE 10 | NE 10 | NE 9 |
| kJ | 234 | 184 | 180 | 180 | 231 | 226 | 216 | 118 | 145 | 166 | 166 | 145 | 145 | 145 | 340 | 320 | 264 | 216 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | ENE 14 | ENE 14 | ENE 13 | SW 8 | SW 8 | SW 8 | SW 8 |
| kJ | 56 | 55 | 54 | 55 | 75 | 94 | 94 | 96 | 94 | 90 | 68 | 236 | 229 | 195 | 60 | 66 | 54 | 69 |
Swell 3 Height (m) Direction Period (s) | ENE 14 | ENE 14 | ENE 14 | ENE 14 | SW 7 | SW 7 | SW 8 | ENE 13 | ENE 13 | ENE 14 | ENE 14 | SW 8 | SW 8 | SW 8 | SSE 8 | S 7 | S 7 | S 7 |
| kJ | 65 | 78 | 76 | 74 | 7 | 7 | 10 | 181 | 129 | 180 | 183 | 65 | 48 | 58 | 44 | 37 | 37 | 35 |
Wind waves Height (m) Direction Period (s) | ENE 3 | ENE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 1836 | 0 | 1290 | 0 | 0 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 16 | 16 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
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