Surf Forecasts:
How big are the waves at Boat Basin Lefts today (24 Aug):
- Morning surf: Morning surf (24 Aug, local time) - 3ft (0.9m), 11s period with NNW swell.
- Afternoon surf: Afternoon surf (24 Aug, local time) - 3ft (0.9m), 11s period with NNW swell.
- Evening surf: Evening surf (24 Aug, local time) - 2.5ft (0.8m), 10s period with NNW swell.
The current surf forecast for Boat Basin Lefts at 4AM is: 1.0m 11s primary swell from a North direction (forecast issued at 09:00pm August 23). An open ocean swell of 1.1m 9s is not directed at the surf break, a second open ocean swell of 1.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Aug) | 3ft (0.9m) | 11s |
| Afternoon (24 Aug) | 3ft (0.9m) | 11s |
| Evening (24 Aug) | 2.5ft (0.8m) | 10s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 48mm), heaviest during Mon afternoon. Warm (max 29°C on Mon morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | ||||||||||||||||
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) | N 10 | N 10 | N 11 | N 11 | N 10 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | ENE 14 | ENE 13 | ENE 13 | W 9 | ENE 13 | ENE 13 | ENE 13 |
Wave Graph  | ||||||||||||||||||
 kJ | 300 | 249 | 274 | 229 | 225 | 210 | 206 | 161 | 128 | 125 | 90 | 143 | 141 | 139 | 327 | 135 | 133 | 131 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:41PM0.76m | 2:57AM0.78m | 7:12PM0.79m | 4:06AM0.79m | 7:38PM0.81m | |||||||||||||
Low Tide | 10:36PM0.71m | 11:11AM0.20m | 11:37PM0.69m | 11:57AM0.17m | ||||||||||||||
 |  | |  |  |  | | | | |  | |  | | | | | | |
 | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | — | 1 | 1 | — | — | 1 | 2 | 3 | 11 | 1 | — | — | — | — | — | 1 | 2 | 3 |
Temp °C | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 32 | 31 | 30 | 29 | 30 | 30 | 31 | 30 | 31 | 30 | 29 | 30 | 29 | 30 | 29 | 30 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | N 10 | N 10 | N 11 | SSE 9 | SSE 9 | NNW 11 | NNW 11 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | W 9 | WSW 9 | WSW 8 | WSW 8 |
| kJ | 300 | 249 | 274 | 168 | 147 | 210 | 206 | 294 | 614 | 726 | 872 | 772 | 671 | 567 | 327 | 380 | 293 | 244 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | N 11 | N 10 | SSE 8 | SSE 8 | NNW 11 | NNW 11 | SSE 8 | NNW 10 | ENE 14 | ENE 13 | SSE 9 | ENE 13 | ENE 13 | ENE 13 | ENE 13 |
| kJ | 177 | 177 | 164 | 229 | 225 | 113 | 85 | 161 | 128 | 78 | 90 | 143 | 141 | 61 | 137 | 135 | 133 | 131 |
Swell 3 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | SE 9 | SSE 7 | SSE 8 | NNW 10 | S 7 | NNW 10 | NNW 10 | ENE 13 | NW 10 | NW 10 | NW 10 | NW 10 |
| kJ | 50 | 50 | 48 | 47 | 46 | 46 | 42 | 55 | 45 | 125 | 40 | 72 | 71 | 139 | 51 | 50 | 50 | 52 |
Wind waves Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | WSW 9 | SW 9 | SW 8 | — | — | — | — | SW 8 | SW 8 | SW 8 | — | — |
| kJ | 284 | 284 | 311 | 367 | 346 | 393 | 421 | 211 | 135 | — | — | — | — | 100 | 95 | 69 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 2069 | 2074 | 1858 | 229 | 229 | 229 | 229 | 229 | 11 | 229 | 229 | 229 | 229 | 16 | 16 | 16 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
Header Global | ||||||||||||||||||
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