Surf Forecasts:
How big are the waves at Boat Basin Lefts today (04 Aug):
- Morning surf: Morning surf (04 Aug, local time) - 4.5ft (1.3m), 14s period with NNE swell.
- Afternoon surf: Afternoon surf (04 Aug, local time) - 4.5ft (1.4m), 13s period with NNE swell.
- Evening surf: Evening surf (04 Aug, local time) - 4.5ft (1.4m), 13s period with N swell.
The current surf forecast for Boat Basin Lefts at 6PM is: 1.3m 13s primary swell from a North-northeast direction (forecast issued at 09:00am August 04). An open ocean swell of 0.4m 8s is not directed at the surf break, a second open ocean swell of 2.4m 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 Aug) | 4.5ft (1.3m) | 14s |
| Afternoon (04 Aug) | 4.5ft (1.4m) | 13s |
| Evening (04 Aug) | 4.5ft (1.4m) | 13s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 75mm), heaviest during Thu afternoon. Warm (max 29°C on Wed morning, min 27°C on Tue afternoon). Mainly strong winds. | ||||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||||||||
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 14 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | N 13 | N 13 | N 13 | N 13 | N 12 | N 12 | N 12 | N 12 | NNW 12 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 569 | 631 | 683 | 632 | 690 | 663 | 643 | 643 | 610 | 591 | 594 | 505 | 497 | 519 | 692 | 828 | 732 | 769 | 769 | 824 | 837 | 888 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:17AM0.74m | 11:30PM0.90m | 12:35PM0.71m | 11:59PM0.89m | 2:12PM0.71m | |||||||||||||||||
Low Tide | 5:37AM0.41m | 5:06PM0.43m | 6:27AM0.34m | 5:46PM0.52m | 7:23AM0.27m | 6:34PM0.61m | ||||||||||||||||
 | | | |  |  |  |  |  | | | | | | | | | | | |  | | |
 | 6:05 | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — |
mm | 2 | 2 | 2 | 1 | 3 | 1 | — | — | — | 2 | 2 | 1 | 1 | 3 | 4 | 4 | 5 | 2 | 4 | 3 | 9 | 9 |
Temp °C | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 28 | 26 | 26 | 27 | 27 | 27 | 27 | 30 | 30 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | NNE 14 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | N 13 | N 13 | N 13 | N 13 | N 12 | N 12 | N 12 | N 12 | NNW 12 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NNW 13 |
| kJ | 569 | 631 | 683 | 632 | 690 | 663 | 643 | 643 | 610 | 591 | 594 | 505 | 497 | 519 | 692 | 828 | 732 | 769 | 769 | 824 | 837 | 888 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ENE 13 | ENE 13 | SSE 8 | SSE 8 | NE 12 | SSE 8 | NE 12 | ENE 12 | S 8 | ENE 11 | ENE 11 | ENE 10 | S 8 | S 8 | SSE 8 | SSE 9 |
| kJ | 12 | 18 | 18 | 17 | 11 | 17 | 33 | 33 | 28 | 28 | 36 | 24 | 35 | 54 | 32 | 49 | 48 | 42 | 32 | 33 | 40 | 46 |
Swell 3 Height (m) Direction Period (s) | ENE 14 | ENE 13 | ENE 14 | ENE 13 | ENE 13 | ENE 13 | SE 8 | SE 9 | ENE 13 | NE 13 | SE 8 | NE 12 | SE 12 | SE 12 | ENE 12 | SE 11 | SSE 8 | S 6 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 18 | 18 | 18 | 17 | 34 | 17 | 18 | 19 | 33 | 41 | 18 | 35 | 22 | 6 | 52 | 18 | 22 | 18 | 41 | 41 | 42 | 42 |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
| kJ | 393 | 383 | 469 | 566 | 653 | 733 | 672 | 597 | 592 | 592 | 612 | 630 | 703 | 686 | 629 | 644 | 574 | 512 | 576 | 566 | 576 | 579 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 1858 | 1836 | 1908 | 1864 | 1864 | 1836 | 1836 | 1290 | 1290 | 1837 | 1908 | 1864 | 1864 | 1836 | 1836 | 1836 | 11 | 16 | 16 | 1864 | 16 | 16 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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