Surf Forecasts:
How big are the waves at Boat Basin Lefts today (14 Aug):
- Morning surf: Morning surf (14 Aug, local time) - 5ft (1.6m), 9s period with WNW swell.
- Afternoon surf: Afternoon surf (14 Aug, local time) - 5ft (1.6m), 9s period with W swell.
- Evening surf: Evening surf (14 Aug, local time) - 5ft (1.6m), 10s period with W swell.
The current surf forecast for Boat Basin Lefts at 5PM is: 1.6m 9s primary swell from a West direction and 0.3m 12s secondary swell from a North direction (forecast issued at 09:00am August 14). An open ocean swell of 0.5m 10s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Aug) | 5ft (1.6m) | 9s |
| Afternoon (14 Aug) | 5ft (1.6m) | 9s |
| Evening (14 Aug) | 5ft (1.6m) | 10s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 45mm), heaviest during Sat afternoon. Warm (max 29°C on Fri morning, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WNW 9 | WNW 9 | W 9 | W 9 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 409 | 400 | 430 | 459 | 499 | 479 | 380 | 412 | 386 | 368 | 360 | 351 | 343 | 381 | 373 | 323 | 373 | 427 | 488 | 501 | 450 | 513 |
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 | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross |
High Tide | 7:51AM0.91m | 9:35PM0.92m | 8:50AM0.88m | 10:02PM0.92m | 9:49AM0.84m | |||||||||||||||||
Low Tide | 2:47PM0.13m | 3:22AM0.49m | 3:27PM0.22m | 4:08AM0.42m | 4:04PM0.33m | |||||||||||||||||
 | |  | |  |  | | | | |  | |  |  | | | | | | | | | |
 | 6:07 | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:42 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 3 | 4 | 7 | 7 | 5 | 5 | 2 | — | — | — | — | 1 |
Temp °C | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 |
Feels °C | 30 | 30 | 30 | 30 | 32 | 31 | 30 | 29 | 29 | 31 | 30 | 29 | 30 | 30 | 31 | 30 | 29 | 28 | 29 | 28 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | SE 11 | SE 10 | W 10 | W 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | W 8 | W 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 |
| kJ | 409 | 400 | 55 | 54 | 499 | 479 | 38 | 38 | 27 | 27 | 26 | 26 | 26 | 25 | 373 | 323 | 25 | 15 | 15 | 15 | 15 | 15 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | N 12 | N 12 | SE 10 | SE 10 | N 11 | N 10 | N 10 | N 10 | NE 11 | NE 11 | NE 10 | NE 10 | SE 10 | SE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NNE 12 | NNE 11 |
| kJ | 56 | 55 | 25 | 25 | 54 | 39 | 36 | 32 | 17 | 17 | 19 | 18 | 15 | 16 | 25 | 25 | 8 | 8 | 8 | 8 | 14 | 13 |
Swell 3 Height (m) Direction Period (s) | N 11 | N 11 | NE 11 | NNE 11 | N 11 | N 11 | NE 12 | NE 12 | NE 12 | NE 11 | N 10 | N 9 | N 9 | N 9 | NE 10 | ENE 9 | NNE 11 | NE 10 | NE 10 | NNE 12 | E 9 | E 9 |
| kJ | 9 | 9 | 5 | 12 | 38 | 37 | 22 | 22 | 21 | 20 | 17 | 7 | 6 | 6 | 4 | 8 | 12 | 4 | 4 | 14 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | W 9 | W 9 | — | — | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | — | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
| kJ | — | — | 430 | 459 | — | — | 380 | 412 | 386 | 368 | 360 | 351 | 343 | 381 | — | 219 | 373 | 427 | 488 | 501 | 450 | 513 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 16 | 16 | 1958 | 1290 | 16 | 16 | 16 | 16 | 16 | 231 | 229 | 229 | 229 | 229 | 2064 | 2064 | 2064 | 2069 | 2070 | 16 | 16 | 229 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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