Surf Forecasts:
How big are the waves at Boat Basin Lefts today (28 Aug):
- Morning surf: Morning surf (28 Aug, local time) - 2ft (0.6m), 13s period with ENE swell.
- Afternoon surf: Afternoon surf (28 Aug, local time) - 2ft (0.6m), 12s period with ENE swell.
- Evening surf: Evening surf (28 Aug, local time) - 2.5ft (0.7m), 12s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 2PM is: 0.6m 12s primary swell from a East-northeast direction (forecast issued at 09:00am August 28). An open ocean swell of 0.8m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Aug) | 2ft (0.6m) | 13s |
| Afternoon (28 Aug) | 2ft (0.6m) | 12s |
| Evening (28 Aug) | 2.5ft (0.7m) | 12s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 49mm), heaviest during Sun night. Warm (max 29°C on Sat morning, min 25°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||||||||
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 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | W 7 | ENE 11 | ENE 11 | ENE 11 | WNW 5 | W 8 | WNW 9 | WNW 8 | W 8 | W 8 | W 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 151 | 93 | 101 | 99 | 99 | 131 | 127 | 123 | 91 | 90 | 88 | 94 | 79 | 78 | 78 | 64 | 115 | 106 | 82 | 191 | 213 | 219 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on | cross-on | cross-on |
High Tide | 6:53AM0.85m | 8:41PM0.87m | 7:43AM0.85m | 9:00PM0.88m | 8:35AM0.85m | 9:20PM0.89m | ||||||||||||||||
Low Tide | 1:49PM0.19m | 2:17AM0.52m | 2:24PM0.24m | 2:55AM0.45m | 2:58PM0.30m | |||||||||||||||||
 | | | |  |  | | |  | | | | | |  | | | | | | |  | |
 | 6:09 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:34 | — | — |
mm | 4 | 4 | 2 | 1 | 1 | — | — | — | — | 4 | 1 | 1 | 2 | 3 | — | — | 1 | 4 | 1 | 4 | 5 | 7 |
Temp °C | 27 | 26 | 26 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 27 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 25 |
Feels °C | 31 | 30 | 29 | 30 | 29 | 30 | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 27 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 7 | W 7 | W 7 | WSW 7 | ENE 11 | WSW 7 | WNW 5 | W 8 | WNW 9 | WSW 8 | ENE 10 | WNW 10 | WNW 9 |
| kJ | 61 | 61 | 59 | 53 | 62 | 77 | 82 | 79 | 82 | 97 | 97 | 94 | 77 | 78 | 44 | 64 | 115 | 106 | 96 | 43 | 60 | 100 |
Swell 2 Height (m) Direction Period (s) | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | WNW 8 | ENE 11 | WNW 8 | WNW 8 | WSW 8 | WNW 8 | WNW 10 | ENE 10 | ENE 10 |
| kJ | 151 | 93 | 101 | 99 | 99 | 131 | 127 | 123 | 91 | 90 | 88 | 82 | 79 | 19 | 78 | 41 | 39 | 73 | 82 | 40 | 43 | 41 |
Swell 3 Height (m) Direction Period (s) | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | SE 9 | NW 9 | NW 9 | NW 9 | SE 10 | SE 10 | SE 10 | WNW 8 | NW 9 | WNW 8 | NE 11 | NE 11 | ENE 11 | ENE 11 | SE 9 | SE 9 | SE 9 |
| kJ | 33 | 31 | 31 | 30 | 31 | 21 | 21 | 12 | 12 | 14 | 15 | 15 | 12 | 13 | 19 | 57 | 56 | 44 | 44 | 14 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 3 | — | — | NW 9 | NW 9 | — | — | NW 4 | — | W 7 | NW 4 | N 4 | — | N 4 | NNW 4 | W 8 | W 8 | W 8 |
| kJ | — | — | — | — | 2 | — | — | 39 | 50 | — | — | 6 | — | 77 | 32 | 13 | — | 9 | 6 | 191 | 213 | 219 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 11 | 1836 | 11 | 11 | 1836 | 11 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 11 | 1836 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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