Surf Forecasts:
How big are the waves at Boat Basin Lefts today (28 Jul):
- Morning surf: Morning surf (28 Jul, local time) - 1ft (0.3m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (28 Jul, local time) - 1.5ft (0.5m), 5s period with NE swell.
- Evening surf: Evening surf (28 Jul, local time) - 1.5ft (0.5m), 7s period with ENE swell.
The current surf forecast for Boat Basin Lefts at 5AM is: 0.3m 8s primary swell from a East-northeast direction and 0.2m 3s secondary swell from a North-northeast direction (forecast issued at 09:00pm July 27). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Jul) | 1ft (0.3m) | 8s |
| Afternoon (28 Jul) | 1.5ft (0.5m) | 5s |
| Evening (28 Jul) | 1.5ft (0.5m) | 7s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Warm (max 29°C on Tue morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||||
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) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 5 | NNE 5 | ENE 7 | NE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 |
Wave Graph  | ||||||||||||||||||
 kJ | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 8 | 30 | 34 | 28 | 46 | 46 | 41 | 29 | 28 | 25 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | glassy | cross-on | cross-on | glassy |
High Tide | 8:18PM0.81m | 5:17AM0.83m | 8:48PM0.83m | 6:06AM0.84m | 9:15PM0.85m | |||||||||||||
Low Tide | 00:42AM0.70m | 1:06PM0.11m | 1:24AM0.68m | 1:43PM0.10m | ||||||||||||||
 | | | |  | | | |  | | | |  | |  | |  | | |
 | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | — | — | — | — | — | — | — | — | 2 | 3 | — | — | — | — | 1 | 2 | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 29 | 29 | 29 | 28 | 28 |
Feels °C | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 32 | 32 | 34 | 34 | 33 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 7 | ESE 4 | SE 7 | SE 7 | SE 7 | NE 5 | SSE 7 | ENE 7 | NE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 |
| kJ | 17 | 10 | 9 | 4 | 14 | 14 | 12 | 12 | 20 | 30 | 34 | 28 | 46 | 46 | 41 | 29 | 28 | 25 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NNE 5 | SSE 8 | NNE 5 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 |
| kJ | 13 | 13 | 13 | 13 | 13 | 13 | 5 | 23 | 8 | 20 | 18 | 18 | 17 | 15 | 18 | 15 | 9 | 8 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 7 | SE 7 | SE 7 | WSW 7 | WSW 7 | ENE 8 | ENE 8 | ENE 6 | N 5 | SE 10 | ENE 8 | SE 10 | SE 9 | E 9 | SE 9 | SE 9 | SE 9 |
| kJ | 24 | 14 | 12 | 12 | 9 | 9 | 13 | 12 | 6 | 4 | 16 | 12 | 15 | 13 | 15 | 13 | 13 | 12 |
Wind waves Height (m) Direction Period (s) | E 5 | ESE 4 | E 4 | NNE 3 | NNE 3 | NNE 3 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 11 | 7 | 6 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 2075 | 2198 | 2064 | 2064 | 2200 | 2200 | 2200 | 2200 | 2441 | 2275 | 11 | 0 | 0 | 0 | 0 | 11 | 11 | 16 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
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