Surf Forecasts:
How big are the waves at Boat Basin Lefts today (19 Oct):
- Morning surf: Morning surf (19 Oct, local time) - 2.5ft (0.7m), 9s period with ENE swell.
- Afternoon surf: Afternoon surf (19 Oct, local time) - 2ft (0.6m), 11s period with W swell.
- Evening surf: Evening surf (19 Oct, local time) - 2ft (0.6m), 11s period with W swell.
The current surf forecast for Boat Basin Lefts at 10AM is: 0.7m 9s primary swell from a East-northeast direction (forecast issued at 03:00am October 19). An open ocean swell of 1.7m 10s is not directed at the surf break, a second open ocean swell of 2.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Oct) | 2.5ft (0.7m) | 9s |
| Afternoon (19 Oct) | 2ft (0.6m) | 11s |
| Evening (19 Oct) | 2ft (0.6m) | 11s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 20mm), heaviest during Mon afternoon. Warm (max 28°C on Tue morning, min 26°C on Tue night). Winds decreasing (fresh winds from the SSE on Mon morning, light winds from the ENE by Tue night). | ||||||||||||||||||||||||
Monday 19 | Tuesday 20 | Wednesday 21 | ||||||||||||||||||||||
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 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | W 11 | W 11 | W 11 | ENE 9 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | WNW 11 | WNW 12 | WNW 12 | W 11 | W 11 | W 11 | W 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 130 | 106 | 94 | 71 | 70 | 82 | 85 | 82 | 70 | 87 | 160 | 157 | 160 | 209 | 202 | 157 | 157 | 209 | 224 | 224 | 307 | 307 | 313 | 390 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | cross | cross | cross |
High Tide | 11:01PM0.73m | 3:46PM0.78m | 00:16AM0.70m | 4:25PM0.80m | 2:04AM0.68m | 4:53PM0.82m | ||||||||||||||||||
Low Tide | 7:25AM0.27m | 9:06PM0.67m | 8:25AM0.30m | 10:12PM0.63m | 9:24AM0.33m | |||||||||||||||||||
 | |  | | | | | | | | | |  |  | |  | | | | | | |  | | |
 | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 5:59 | — | — | — | — | — | — | — | 5:58 | — | — |
mm | 4 | 4 | 2 | 2 | 3 | 2 | 4 | 2 | 1 | 1 | 1 | 1 | — | — | 1 | — | — | — | 1 | 1 | — | — | — | — |
Temp °C | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 27 | 26 | 26 |
Feels °C | 25 | 23 | 25 | 26 | 27 | 28 | 27 | 28 | 29 | 29 | 30 | 30 | 30 | 31 | 31 | 31 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | ENE 9 | SW 10 | SW 10 | SW 10 | WSW 9 | WSW 10 | SW 10 | SW 10 | SW 10 | SSW 10 | SSW 10 | SW 9 | SW 9 | SW 10 | SW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | W 11 | W 11 | W 11 | W 12 |
| kJ | 860 | 106 | 416 | 592 | 480 | 288 | 378 | 407 | 407 | 441 | 625 | 609 | 513 | 321 | 399 | 294 | 266 | 221 | 221 | 236 | 307 | 307 | 313 | 390 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | NNE 11 | WSW 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | WNW 11 | WNW 12 | WNW 12 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 130 | 22 | 387 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 160 | 157 | 160 | 209 | 202 | 157 | 157 | 209 | 224 | 224 | 126 | 150 | 137 | 137 |
Swell 3 Height (m) Direction Period (s) | NNE 11 | NNE 11 | ENE 9 | NNE 10 | NNE 10 | W 11 | W 11 | W 11 | W 11 | W 11 | ENE 9 | ENE 9 | ENE 9 | SSE 7 | ENE 9 | ENE 9 | NE 8 | ENE 9 | NE 9 | ENE 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 |
| kJ | 22 | 11 | 94 | 20 | 19 | 82 | 85 | 82 | 56 | 87 | 70 | 70 | 70 | 51 | 67 | 67 | 74 | 94 | 107 | 123 | 117 | 132 | 119 | 103 |
Wind waves Height (m) Direction Period (s) | S 9 | S 9 | SSE 9 | SSE 9 | SSE 8 | S 8 | S 8 | S 8 | SSE 8 | SSE 7 | — | — | SSE 6 | — | — | — | — | — | NE 2 | ENE 3 | ENE 4 | — | — | — |
| kJ | 2138 | 2651 | 1288 | 1081 | 851 | 682 | 533 | 374 | 324 | 193 | — | — | 54 | — | — | — | — | — | 1 | 3 | 7 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1836 | 1836 | 1836 | 1836 | 2064 | 2064 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1836 | 20 | 1836 | 1908 | 1864 | 1290 | 1290 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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