Surf Forecasts:
How big are the waves at Boat Basin Lefts today (13 Jul):
- Morning surf: Morning surf (13 Jul, local time) - 3.5ft (1.0m), 12s period with WNW swell.
- Afternoon surf: Afternoon surf (13 Jul, local time) - 3ft (0.9m), 12s period with WNW swell.
- Evening surf: Evening surf (13 Jul, local time) - 3ft (0.9m), 12s period with WNW swell.
The current surf forecast for Boat Basin Lefts at 3PM is: 0.9m 12s primary swell from a West-northwest direction (forecast issued at 09:00am July 13). An open ocean swell of 0.4m 9s is not directed at the surf break, a second open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Jul) | 3.5ft (1.0m) | 12s |
| Afternoon (13 Jul) | 3ft (0.9m) | 12s |
| Evening (13 Jul) | 3ft (0.9m) | 12s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 80mm), heaviest during Wed night. Warm (max 28°C on Mon morning, min 25°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thu 16 | |||||||||||||||||||||
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 | 1 AM | 4 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | 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 | WNW 11 | WNW 10 | WNW 10 | E 10 | E 10 | ENE 10 | E 10 | E 10 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 386 | 313 | 254 | 250 | 199 | 193 | 186 | 143 | 138 | 135 | 123 | 95 | 91 | 90 | 64 | 58 | 38 | 31 | 30 | 31 | 29 | 29 | 29 | 29 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross |
High Tide | 4:45AM0.93m | 8:28PM0.91m | 5:45AM0.95m | 9:11PM0.93m | 6:45AM0.95m | 9:50PM0.94m | ||||||||||||||||||
Low Tide | 12:41PM-0.05m | 1:03AM0.73m | 1:33PM-0.07m | 2:00AM0.71m | 2:22PM-0.06m | 2:54AM0.67m | ||||||||||||||||||
 | | |  |  | | |  | | | | | | | | | | |  | |  | | | | |
 | 6:00 | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 |
 | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | 6:52 |
mm | 4 | 2 | 1 | — | 2 | 1 | 1 | — | — | 2 | 3 | 2 | 1 | — | 1 | — | 1 | 5 | 9 | 9 | 10 | 12 | 10 | 5 |
Temp °C | 27 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 25 | 25 | 25 |
Feels °C | 29 | 28 | 29 | 31 | 29 | 31 | 29 | 28 | 30 | 29 | 29 | 30 | 31 | 32 | 30 | 29 | 29 | 29 | 30 | 29 | 29 | 28 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SSE 7 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | SE 8 | WNW 11 | WNW 11 | SE 7 | SE 7 | SSE 7 | SE 7 | SE 7 | ENE 10 | SE 8 | SE 8 | SSE 8 | SSE 8 |
| kJ | 386 | 313 | 254 | 250 | 199 | 193 | 76 | 143 | 138 | 135 | 123 | 51 | 91 | 90 | 42 | 41 | 33 | 24 | 24 | 31 | 18 | 18 | 26 | 27 |
Swell 2 Height (m) Direction Period (s) | WSW 10 | WSW 9 | WSW 9 | WSW 8 | SE 6 | SE 6 | WNW 11 | E 8 | SE 8 | SE 8 | ESE 8 | WNW 11 | SE 8 | SE 8 | WNW 11 | WNW 10 | WNW 10 | E 10 | E 10 | SSE 8 | E 10 | E 10 | E 10 | E 10 |
| kJ | 18 | 27 | 28 | 23 | 37 | 56 | 186 | 50 | 67 | 53 | 47 | 95 | 38 | 28 | 64 | 58 | 38 | 30 | 30 | 26 | 29 | 29 | 29 | 29 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 9 | SE 9 | SE 9 | E 8 | E 8 | E 9 | WSW 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | S 10 | NE 8 | NE 8 |
| kJ | 18 | 14 | 13 | 13 | 66 | 46 | 58 | 14 | 49 | 35 | 42 | 43 | 41 | 45 | 29 | 29 | 30 | 31 | 17 | 17 | 9 | 2 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | ESE 8 | ESE 8 | SSE 6 | — | — | SSE 7 | SSW 5 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 |
| kJ | 143 | 131 | 144 | 119 | 67 | — | — | 93 | 77 | 223 | 271 | 257 | 240 | 222 | 237 | 244 | 262 | 353 | 434 | 434 | 423 | 398 | 408 | 473 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 1866 | 0 | 1836 | 1836 | 1836 | 1836 | 1908 | 1905 | 231 | 229 | 229 | 1836 | 1836 | 1836 | 1905 | 1905 | 1958 | 11 | 1958 | 2064 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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