Surf Forecasts:
How big are the waves at Boat Basin Lefts today (06 Aug):
- Afternoon surf: Afternoon surf (06 Aug, local time) - 4.5ft (1.4m), 12s period with NNW swell.
- Evening surf: Evening surf (06 Aug, local time) - 4.5ft (1.4m), 12s period with NNW swell.
The current surf forecast for Boat Basin Lefts at 8PM is: 1.4m 12s primary swell from a North-northwest direction and 1.9m 8s secondary swell from a West direction (forecast issued at 03:00pm August 06). An open ocean swell of 0.6m 10s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Aug) | - | - |
| Afternoon (06 Aug) | 4.5ft (1.4m) | 12s |
| Evening (06 Aug) | 4.5ft (1.4m) | 12s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 30mm), heaviest during Thu night. Warm (max 29°C on Thu afternoon, min 28°C on Thu afternoon). Mainly fresh winds. | ||||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | ||||||||||||||||||
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) | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 13 | NW 13 | NW 13 | W 9 | W 10 | W 9 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 598 | 517 | 517 | 554 | 691 | 932 | 841 | 689 | 685 | 813 | 755 | 815 | 832 | 855 | 938 | 947 | 947 | 942 | 1026 | 1026 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross |
High Tide | 2:12PM0.71m | 00:35AM0.89m | 4:04PM0.73m | 1:21AM0.89m | 5:38PM0.78m | |||||||||||||||
Low Tide | 6:34PM0.61m | 8:25AM0.20m | 7:41PM0.68m | 9:30AM0.13m | 9:14PM0.73m | |||||||||||||||
 | |  | | | | | | | | |  | | | | | | | | | |
 | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | 1 | 1 | 4 | 5 | 3 | 1 | 1 | 1 | 1 | 2 | 1 | — | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |
Temp °C | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 29 | 28 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | ENE 10 | NW 12 | NW 12 | NW 12 |
| kJ | 598 | 517 | 517 | 554 | 691 | 932 | 841 | 689 | 519 | 435 | 373 | 282 | 232 | 195 | 153 | 147 | 95 | 210 | 210 | 203 |
Swell 2 Height (m) Direction Period (s) | S 8 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | NW 11 | ENE 10 | ENE 14 | ENE 14 |
| kJ | 48 | 72 | 96 | 48 | 47 | 71 | 71 | 68 | 68 | 71 | 99 | 95 | 92 | 94 | 95 | 95 | 96 | 72 | 129 | 236 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 9 | SE 9 | SE 9 | ENE 14 | NW 13 | NE 14 | ENE 10 | SE 11 |
| kJ | 59 | 59 | 69 | 69 | 69 | 46 | 45 | 43 | 28 | 28 | 28 | 24 | 23 | 22 | 22 | 78 | 109 | 96 | 71 | 18 |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 9 | W 10 | W 9 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 |
| kJ | 386 | 432 | 481 | 481 | 443 | 461 | 525 | 609 | 685 | 813 | 755 | 815 | 832 | 855 | 938 | 947 | 947 | 942 | 1026 | 1026 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 16 | 1864 | 16 | 16 | 1836 | 1836 | 1836 | 1836 | 1864 | 1864 | 1864 | 1836 | 1836 | 1836 | 1836 | 1836 | 2064 | 1907 | 1907 | 1836 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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