Surf Forecasts:
How big are the waves at Boat Basin Lefts today (01 Sep):
- Afternoon surf: Afternoon surf (01 Sep, local time) - 4ft (1.2m), 9s period with WNW swell.
- Evening surf: Evening surf (01 Sep, local time) - 4.5ft (1.4m), 9s period with W swell.
The current surf forecast for Boat Basin Lefts at 10PM is: 1.4m 9s primary swell from a West direction and 0.5m 10s secondary swell from a Northeast direction (forecast issued at 03:00pm September 01). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Sep) | - | - |
| Afternoon (01 Sep) | 4ft (1.2m) | 9s |
| Evening (01 Sep) | 4.5ft (1.4m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 29mm), heaviest during Wed night. Warm (max 28°C on Tue afternoon, min 26°C on Tue night). Winds increasing (calm on Tue afternoon, strong winds from the SW by Thu morning). | ||||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | ||||||||||||||||||
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) | WNW 9 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | WNW 8 | WNW 9 | WNW 9 | WNW 12 | WNW 12 | WNW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 248 | 259 | 327 | 313 | 306 | 264 | 264 | 264 | 230 | 264 | 257 | 278 | 271 | 266 | 180 | 189 | 169 | 461 | 414 | 372 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross |
High Tide | 10:27AM0.81m | 10:06PM0.89m | 11:32AM0.79m | 10:34PM0.89m | 12:49PM0.76m | |||||||||||||||
Low Tide | 4:10PM0.46m | 5:00AM0.25m | 4:48PM0.54m | 5:51AM0.21m | 5:32PM0.62m | |||||||||||||||
 | |  | | |  | | | | | | | | | | |  | | | | |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | 1 | 1 | — | — | — | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 2 | 5 | 1 | — | 3 | 3 | 1 |
Temp °C | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 31 | 31 | 32 | 31 | 30 | 29 | 29 | 30 | 31 | 32 | 32 | 32 | 31 | 28 | 26 | 24 | 27 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | WNW 8 | WNW 9 | WNW 9 | WNW 12 | WNW 12 | WNW 11 |
| kJ | 248 | 259 | 327 | 313 | 306 | 264 | 264 | 264 | 230 | 264 | 257 | 278 | 271 | 266 | 180 | 189 | 169 | 461 | 414 | 372 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SW 7 | NE 10 | NE 10 | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 10 | NE 10 | NE 10 | WSW 8 | SW 8 | NW 13 | NE 9 | NE 9 | NE 9 |
| kJ | 28 | 36 | 48 | 48 | 47 | 46 | 43 | 43 | 41 | 41 | 42 | 45 | 46 | 47 | 84 | 104 | 80 | 40 | 29 | 29 |
Swell 3 Height (m) Direction Period (s) | NE 10 | NE 10 | SE 9 | E 11 | E 10 | E 10 | S 5 | S 5 | S 5 | S 5 | E 10 | SE 9 | SE 9 | SE 9 | NE 10 | NE 10 | NE 9 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 49 | 48 | 13 | 20 | 8 | 8 | 5 | 8 | 8 | 8 | 8 | 12 | 13 | 13 | 46 | 44 | 41 | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 4 | SW 7 | SW 7 | SW 7 | SW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | 127 | 219 | 331 | 485 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 229 | 0 | 0 | 0 | 11 | 11 | 11 | 11 | 14 | 0 | 0 | 0 | 1996 | 1304 | 1304 | 1905 | 2069 | 1304 | 2068 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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