Surf Forecasts:
How big are the waves at Boat Basin Lefts today (04 Oct):
- Afternoon surf: Afternoon surf (04 Oct, local time) - 4ft (1.2m), 10s period with N swell.
- Evening surf: Evening surf (04 Oct, local time) - 4.5ft (1.3m), 11s period with N swell.
The current surf forecast for Boat Basin Lefts at 10PM is: 1.3m 11s primary swell from a North direction and 0.5m 14s secondary swell from a East direction (forecast issued at 03:00pm October 04). An open ocean swell of 2.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Oct) | - | - |
| Afternoon (04 Oct) | 4ft (1.2m) | 10s |
| Evening (04 Oct) | 4.5ft (1.3m) | 11s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 60mm), heaviest during Wed morning. Warm (max 28°C on Sun afternoon, min 25°C on Tue night). Winds decreasing (strong winds from the SW on Sun afternoon, light winds from the WSW by Tue night). | ||||||||||||||||||||
Sun 4 | Monday 5 | Tuesday 6 | ||||||||||||||||||
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) | N 10 | N 10 | N 10 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 13 | N 12 | N 12 | N 12 | N 12 | N 13 | N 13 | N 13 | N 13 | N 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 308 | 308 | 367 | 396 | 389 | 459 | 466 | 466 | 543 | 621 | 813 | 738 | 638 | 726 | 874 | 946 | 1060 | 917 | 932 | 971 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 3:43PM0.82m | 00:39AM0.80m | 4:41PM0.84m | 2:16AM0.77m | 5:21PM0.86m | |||||||||||||||
Low Tide | 8:32PM0.71m | 8:45AM0.17m | 9:59PM0.67m | 9:53AM0.21m | ||||||||||||||||
 | |  | | | |  | | | |  | | | | | | | | | | |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 6:08 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — |
mm | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 1 | 1 | — | 1 | — | — | — | 1 | 1 | 1 | 1 | 4 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 27 | 28 | 28 | 29 | 28 | 29 | 28 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | N 10 | N 10 | N 10 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 13 | N 12 | N 12 | N 12 | N 12 | N 13 | N 13 | N 13 | N 13 | N 13 |
| kJ | 308 | 308 | 367 | 396 | 389 | 459 | 466 | 466 | 543 | 621 | 813 | 738 | 638 | 726 | 874 | 946 | 1060 | 917 | 932 | 971 |
Swell 2 Height (m) Direction Period (s) | ENE 15 | E 14 | E 14 | E 14 | NW 8 | E 13 | E 13 | E 13 | E 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | SE 9 | SE 9 | SE 12 | SE 11 | SE 11 | SE 11 |
| kJ | 71 | 107 | 106 | 103 | 45 | 90 | 89 | 87 | 87 | 55 | 50 | 48 | 48 | 47 | 30 | 31 | 48 | 43 | 43 | 43 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | E 14 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 11 |
| kJ | 13 | 14 | 21 | 29 | 100 | 30 | 30 | 30 | 32 | 33 | 25 | 33 | 33 | 23 | 46 | 26 | 25 | 41 | 24 | 23 |
Wind waves Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
| kJ | 1113 | 1010 | 961 | 846 | 674 | 699 | 567 | 485 | 452 | 483 | 510 | 559 | 574 | 515 | 424 | 392 | 353 | 371 | 410 | 363 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1958 | 2076 | 2064 | 1866 | 1836 | 1858 | 1836 | 1836 | 1958 | 1905 | 1905 | 1836 | 1836 | 1836 | 1836 | 1836 | 2064 | 1905 | 229 | 1866 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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