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 7AM is: 1.1m 12s primary swell from a West-northwest direction (forecast issued at 03:00am July 13). An open ocean swell of 0.3m 10s is not directed at the surf break, a second open ocean swell of 1.0m 8s is not directed at the surf break. The wind direction is predicted to be 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 63mm), heaviest during Wed afternoon. Warm (max 29°C on Mon morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | ||||||||||||||||||||||
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 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 | WNW 11 | WNW 10 | WNW 10 | E 10 | E 10 | ENE 10 | E 10 | ENE 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 514 | 490 | 386 | 313 | 254 | 250 | 199 | 193 | 186 | 143 | 138 | 135 | 93 | 95 | 91 | 90 | 64 | 58 | 38 | 31 | 30 | 30 | 29 | 30 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on |
High Tide | 4:45AM0.93m | 8:28PM0.91m | 5:45AM0.95m | 9:11PM0.93m | 6:45AM0.95m | 9:50PM0.94m | ||||||||||||||||||
Low Tide | 00:00AM0.74m | 12:41PM-0.05m | 1:03AM0.73m | 1:33PM-0.07m | 2:00AM0.71m | 2:22PM-0.06m | ||||||||||||||||||
 |  |  | |  | | | | | |  | | | |  | | | | | | |  |  | | |
 | — | 6:00 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — |
mm | — | 1 | 3 | 1 | — | 1 | 3 | 4 | 6 | 2 | — | 2 | 2 | 2 | — | — | 1 | — | 1 | 2 | 5 | 7 | 9 | 8 |
Temp °C | 28 | 28 | 27 | 28 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 31 | 30 | 28 | 29 | 30 | 31 | 29 | 29 | 30 | 29 | 30 | 29 | 29 | 30 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | SE 8 | ESE 8 | E 9 | SE 8 | WNW 11 | SE 7 | SE 7 | SSE 7 | SE 7 | SE 7 | SE 8 | SE 8 | ENE 10 |
| kJ | 514 | 490 | 386 | 313 | 254 | 250 | 199 | 193 | 186 | 143 | 138 | 75 | 103 | 76 | 49 | 90 | 43 | 42 | 33 | 24 | 24 | 32 | 18 | 30 |
Swell 2 Height (m) Direction Period (s) | WSW 9 | WSW 9 | WSW 10 | WSW 9 | E 8 | E 8 | SE 6 | E 8 | E 9 | SE 7 | SE 8 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | SSE 7 | WNW 11 | WNW 10 | WNW 10 | E 10 | E 10 | ENE 10 | E 10 | SSE 8 |
| kJ | 32 | 28 | 18 | 27 | 108 | 65 | 38 | 50 | 57 | 39 | 50 | 135 | 93 | 95 | 91 | 37 | 64 | 58 | 38 | 30 | 30 | 30 | 29 | 28 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | ENE 9 | SE 9 | WSW 9 | SSE 6 | E 8 | WSW 9 | WSW 9 | E 8 | E 8 | E 9 | NE 9 | SE 8 | E 9 | E 9 | E 10 | E 10 | E 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | S 10 |
| kJ | 13 | 13 | 17 | 14 | 28 | 21 | 66 | 25 | 15 | 49 | 49 | 41 | 3 | 31 | 41 | 45 | 29 | 30 | 30 | 31 | 18 | 8 | 8 | 2 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | ESE 8 | SSE 4 | — | — | SSE 6 | SSE 6 | SSW 5 | SSW 5 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 8 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 |
| kJ | 167 | 138 | 134 | 137 | 6 | — | — | 62 | 104 | 74 | 83 | 134 | 247 | 266 | 210 | 174 | 215 | 306 | 399 | 439 | 410 | 428 | 381 | 418 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 20 | 0 | 0 | 0 | 0 | 1905 | 1866 | 1866 | 1836 | 229 | 229 | 229 | 1905 | 229 | 1905 | 1908 | 1836 | 1836 | 1836 | 1836 | 1905 | 1905 | 1836 | 1905 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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