Surf Forecasts:
How big are the waves at Boat Basin Lefts today (12 Jul):
- Morning surf: Morning surf (12 Jul, local time) - 5ft (1.6m), 13s period with WNW swell.
- Afternoon surf: Afternoon surf (12 Jul, local time) - 5ft (1.5m), 13s period with W swell.
- Evening surf: Evening surf (12 Jul, local time) - 4.5ft (1.4m), 13s period with WNW swell.
The current surf forecast for Boat Basin Lefts at 8AM is: 1.6m 13s primary swell from a West-northwest direction and 1.6m 6s secondary swell from a East direction (forecast issued at 03:00am July 12). An open ocean swell of 0.6m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Jul) | 5ft (1.6m) | 13s |
| Afternoon (12 Jul) | 5ft (1.5m) | 13s |
| Evening (12 Jul) | 4.5ft (1.4m) | 13s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Sun afternoon. Warm (max 29°C on Sun morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | ||||||||||||||||||||||
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 | 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) | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | W 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1106 | 958 | 836 | 811 | 811 | 775 | 669 | 522 | 514 | 490 | 406 | 313 | 308 | 250 | 246 | 193 | 183 | 180 | 138 | 133 | 133 | 123 | 91 | 90 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:47AM0.92m | 7:39PM0.87m | 4:45AM0.93m | 8:28PM0.91m | 5:45AM0.95m | 9:11PM0.93m | ||||||||||||||||||
Low Tide | 10:47PM0.72m | 11:47AM0.00m | 00:00AM0.74m | 12:41PM-0.05m | 1:03AM0.73m | 1:33PM-0.07m | ||||||||||||||||||
 | |  | | | | |  |  | |  | | | | | | |  | | | | | | | |
 | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — |
mm | 1 | 1 | 4 | 1 | 1 | 1 | 4 | — | — | — | — | 1 | 1 | — | — | 1 | 3 | — | — | — | — | 1 | 1 | — |
Temp °C | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 28 | 28 | 28 |
Feels °C | 30 | 30 | 30 | 29 | 31 | 32 | 31 | 31 | 30 | 30 | 30 | 31 | 30 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 31 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | W 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | SSE 7 | SE 8 | SE 8 | SSW 7 |
| kJ | 1106 | 958 | 836 | 811 | 811 | 775 | 669 | 522 | 514 | 490 | 406 | 313 | 308 | 250 | 246 | 193 | 183 | 180 | 138 | 133 | 172 | 153 | 117 | 88 |
Swell 2 Height (m) Direction Period (s) | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | SE 11 | SE 11 | WSW 9 | WSW 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 10 | E 9 | SE 8 | SSE 7 | SSE 7 | WNW 11 | SSW 7 | WNW 11 | SE 8 |
| kJ | 130 | 123 | 80 | 80 | 39 | 18 | 18 | 48 | 32 | 138 | 104 | 82 | 86 | 88 | 88 | 67 | 60 | 54 | 34 | 48 | 133 | 79 | 91 | 93 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | S 10 | S 10 | SE 10 | SE 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 9 | SE 9 | SE 8 | E 8 | E 8 | SE 8 | E 9 | WNW 11 | ENE 9 | WNW 11 |
| kJ | 22 | 21 | 19 | 19 | 18 | 2 | 2 | 14 | 13 | 28 | 32 | 27 | 24 | 23 | 25 | 47 | 43 | 50 | 51 | 53 | 41 | 123 | 8 | 90 |
Wind waves Height (m) Direction Period (s) | ENE 9 | ENE 6 | E 6 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — | — | WSW 8 | — | SW 7 | W 8 |
| kJ | 168 | 113 | 226 | 216 | 208 | 185 | 187 | 190 | 167 | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 106 | 43 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1836 | 1836 | 1836 | 1836 | 20 | 24 | 1373 | 20 | 20 | 20 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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