Surf Forecasts:
How big are the waves at Boat Basin Lefts today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 4PM is: 0.4m 9s primary swell from a East-northeast direction (forecast issued at 09:00am July 21). An open ocean swell of 0.7m 7s is not directed at the surf break, a second open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 1.5ft (0.4m) | 9s |
| Afternoon (21 Jul) | 1.5ft (0.4m) | 9s |
| Evening (21 Jul) | - | - |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Warm (max 29°C on Tue morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||
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 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SW 7 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 28 | 28 | 27 | 27 | 27 | 0 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 16 | 16 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross | cross | glassy | cross-off | cross-off | cross | cross | cross-on | glassy | cross-on | glassy | glassy | glassy | glassy | on | on | cross-on |
High Tide | 1:30PM0.68m | 00:54AM0.88m | 3:12PM0.67m | 1:23AM0.85m | 5:00PM0.69m | |||||||||||||||||
Low Tide | 7:27AM0.37m | 6:26PM0.53m | 8:22AM0.32m | 7:07PM0.61m | 9:16AM0.28m | 8:04PM0.67m | ||||||||||||||||
 |  | | |  | | | | | | | |  | | | | |  | | | | | |
 | 6:01 | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — |
mm | 1 | — | — | — | — | — | — | — | 1 | — | — | — | 1 | — | 1 | 2 | — | — | 1 | — | — | — |
Temp °C | 27 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 29 | 28 | 28 |
Feels °C | 29 | 30 | 31 | 30 | 31 | 30 | 31 | 32 | 32 | 31 | 31 | 32 | 32 | 33 | 32 | 32 | 32 | 33 | 32 | 32 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 |
| kJ | 32 | 32 | 35 | 56 | 54 | 60 | 91 | 93 | 84 | 115 | 105 | 105 | 105 | 105 | 91 | 91 | 79 | 79 | 70 | 70 | 70 | 56 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 5 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 |
| kJ | 28 | 28 | 27 | 27 | 27 | 15 | 41 | 41 | 40 | 37 | 49 | 49 | 48 | 48 | 47 | 46 | 54 | 54 | 54 | 55 | 57 | 60 |
Swell 3 Height (m) Direction Period (s) | SSE 5 | SSE 6 | SE 10 | SE 10 | SE 10 | SE 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 8 | 13 | 33 | 35 | 36 | 41 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 16 | 16 |
Wind waves Height (m) Direction Period (s) | — | ESE 2 | S 6 | S 6 | S 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | 19 | 27 | 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 1898 | 1898 | 2075 | 2075 | 229 | 11 | 11 | 11 | 15 | 14 | 229 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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