Surf Forecasts:
How big are the waves at Boat Basin Lefts today (09 Aug):
- Morning surf: Morning surf (09 Aug, local time) - 7ft (2.2m), 10s period with W swell.
- Afternoon surf: Afternoon surf (09 Aug, local time) - 7ft (2.2m), 10s period with W swell.
- Evening surf: Evening surf (09 Aug, local time) - 7.5ft (2.3m), 10s period with W swell.
The current surf forecast for Boat Basin Lefts at 2AM is: 2.1m 10s primary swell from a West direction and 0.8m 13s secondary swell from a East-northeast direction, 0.7m 12s secondary swell from a Northwest direction (forecast issued at 09:00pm August 08). The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Aug) | 7ft (2.2m) | 10s |
| Afternoon (09 Aug) | 7ft (2.2m) | 10s |
| Evening (09 Aug) | 7.5ft (2.3m) | 10s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 22mm), heaviest during Mon night. Warm (max 29°C on Sun morning, min 27°C on Mon night). Mainly fresh winds. | ||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | ||||||||||||||||
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) | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | NW 12 | W 11 | W 11 |
Wave Graph  | ||||||||||||||||||
 kJ | 745 | 755 | 865 | 1009 | 1026 | 1009 | 996 | 976 | 976 | 1060 | 951 | 919 | 900 | 780 | 854 | 421 | 1302 | 1302 |
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 | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:38PM0.78m | 2:19AM0.89m | 6:40PM0.83m | 3:28AM0.89m | 7:26PM0.87m | |||||||||||||
Low Tide | 9:14PM0.73m | 10:34AM0.07m | 10:45PM0.74m | 11:34AM0.03m | ||||||||||||||
 |  | |  |  |  | | | | | | | | |  | | | | |
 | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 |
Feels °C | 30 | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | NW 12 | ENE 14 | ENE 13 | NE 12 | NE 12 | ENE 12 | NE 12 | NE 12 | NE 12 | ENE 12 | NE 11 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NE 11 | NE 10 |
| kJ | 207 | 236 | 225 | 223 | 212 | 184 | 144 | 142 | 112 | 91 | 63 | 134 | 184 | 273 | 297 | 421 | 18 | 17 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | NW 12 | NW 12 | NW 12 | NW 11 | SE 10 | SE 10 | NW 11 | NW 10 | SE 9 | SE 9 | NE 11 | NE 11 | NE 11 | NE 11 | NE 11 | SE 10 | SE 10 |
| kJ | 71 | 169 | 137 | 83 | 43 | 24 | 23 | 18 | 17 | 14 | 13 | 60 | 59 | 43 | 32 | 30 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | ENE 14 | SE 11 | SE 10 | SE 10 | SE 10 | NW 11 | NW 11 | SE 9 | SE 9 | SE 10 | S 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ENE 13 | ENE 13 |
| kJ | 129 | 29 | 26 | 24 | 15 | 19 | 41 | 14 | 14 | 14 | 2 | 14 | 13 | 13 | 13 | 13 | 17 | 17 |
Wind waves Height (m) Direction Period (s) | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 10 | W 11 | W 11 |
| kJ | 745 | 755 | 865 | 1009 | 1026 | 1009 | 996 | 976 | 976 | 1060 | 951 | 919 | 900 | 780 | 854 | 826 | 1302 | 1302 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 16 | 16 | 16 | 1836 | 1836 | 1836 | 1905 | 1905 | 1866 | 1836 | 1290 | 1836 | 1836 | 1836 | 1905 | 1905 | 1866 | 1836 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
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