Surf Forecasts:
How big are the waves at Boat Basin Lefts today (25 Aug):
- Afternoon surf: Afternoon surf (25 Aug, local time) - 2ft (0.6m), 13s period with ENE swell.
- Evening surf: Evening surf (25 Aug, local time) - 3.5ft (1.0m), 8s period with W swell.
The current surf forecast for Boat Basin Lefts at 8PM is: 0.6m 13s primary swell from a East-northeast direction (forecast issued at 03:00pm August 25). An open ocean swell of 1.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Aug) | - | - |
| Afternoon (25 Aug) | 2ft (0.6m) | 13s |
| Evening (25 Aug) | 3.5ft (1.0m) | 8s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 69mm), heaviest during Thu night. Warm (max 29°C on Tue afternoon, min 25°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | ||||||||||||||||||
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) | W 9 | ENE 13 | ENE 13 | W 8 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | NW 11 | NW 11 | NW 11 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 327 | 135 | 133 | 136 | 93 | 86 | 83 | 82 | 82 | 81 | 79 | 78 | 74 | 71 | 70 | 69 | 68 | 68 | 79 | 64 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off |
High Tide | 7:38PM0.81m | 5:07AM0.81m | 8:01PM0.83m | 6:01AM0.83m | 8:21PM0.85m | |||||||||||||||
Low Tide | 11:57AM0.17m | 00:23AM0.66m | 12:37PM0.16m | 1:03AM0.62m | 1:14PM0.17m | |||||||||||||||
 |  |  | | | |  | | | |  |  | | | | | | |  | | |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 6:37 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:36 | — | — |
mm | — | 1 | 3 | 2 | 1 | 1 | — | 1 | 2 | 3 | — | — | — | 1 | 3 | 4 | 4 | 3 | 2 | 3 |
Temp °C | 29 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 25 | 25 |
Feels °C | 31 | 31 | 30 | 30 | 29 | 31 | 31 | 31 | 31 | 31 | 32 | 30 | 29 | 29 | 29 | 29 | 30 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | W 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | SW 7 | ENE 11 | ENE 11 |
| kJ | 327 | 329 | 262 | 240 | 235 | 145 | 196 | 178 | 173 | 138 | 134 | 104 | 97 | 71 | 70 | 69 | 68 | 135 | 79 | 64 |
Swell 2 Height (m) Direction Period (s) | SW 8 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | W 8 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | NW 10 | NW 10 | NW 10 | NW 10 | ENE 11 | NW 10 | NW 10 |
| kJ | 65 | 135 | 133 | 131 | 93 | 64 | 83 | 82 | 82 | 81 | 79 | 78 | 74 | 37 | 37 | 35 | 35 | 68 | 34 | 33 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | NNW 10 | NW 10 | NW 10 | NW 10 | ENE 12 | NW 10 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | SSE 6 | S 6 | SE 10 | SE 10 | NW 10 | SE 9 | NE 13 |
| kJ | 137 | 38 | 53 | 52 | 50 | 86 | 37 | 67 | 80 | 75 | 72 | 51 | 36 | 10 | 10 | 24 | 14 | 35 | 14 | 45 |
Wind waves Height (m) Direction Period (s) | — | — | — | W 8 | — | — | — | — | — | — | — | — | — | WSW 7 | WSW 7 | WSW 7 | WSW 7 | — | WSW 7 | WSW 7 |
| kJ | — | — | — | 136 | — | — | — | — | — | — | — | — | — | 125 | 131 | 168 | 159 | — | 123 | 110 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 0 | 229 | 16 | 16 | 16 | 11 | 11 | 11 | 0 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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