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 8AM is: 1.6m 9s primary swell from a West-northwest direction (forecast issued at 03:00am August 14). An open ocean swell of 0.5m 11s 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 42mm), heaviest during Sun night. Warm (max 29°C on Fri morning, min 27°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||||||||||
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 10 | WNW 9 | WNW 9 | WNW 9 | WNW 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 | 497 | 409 | 409 | 400 | 442 | 459 | 499 | 479 | 440 | 363 | 340 | 317 | 309 | 351 | 358 | 375 | 405 | 418 | 431 | 442 | 489 | 488 | 529 | 572 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:51AM0.91m | 9:35PM0.92m | 8:50AM0.88m | 10:02PM0.92m | 9:49AM0.84m | |||||||||||||||||||
Low Tide | 2:35AM0.56m | 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 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 6 | 7 | 1 | 1 | 2 | 1 | — | — | 1 |
Temp °C | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 |
Feels °C | 31 | 30 | 30 | 30 | 29 | 29 | 30 | 30 | 30 | 29 | 30 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 30 | 29 | 29 | 29 | 31 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | WNW 9 | WNW 9 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | W 8 |
| kJ | 497 | 409 | 409 | 400 | 55 | 54 | 54 | 39 | 38 | 38 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 15 | 15 | 15 | 15 | 15 | 572 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | N 12 | N 12 | N 11 | N 11 | N 11 | N 10 | N 10 | N 10 | NE 11 | NE 11 | NE 10 | NE 10 | NE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NNE 12 | SE 10 |
| kJ | 56 | 56 | 56 | 55 | 25 | 25 | 38 | 37 | 36 | 32 | 17 | 17 | 18 | 18 | 16 | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 13 | 15 |
Swell 3 Height (m) Direction Period (s) | E 11 | E 11 | N 11 | N 11 | NE 11 | NNE 11 | NNE 11 | NE 10 | NE 12 | NE 12 | NE 12 | NE 11 | N 10 | N 9 | N 9 | N 9 | E 9 | NNE 11 | NNE 11 | NE 10 | NE 10 | NNE 12 | E 9 | NNE 11 |
| kJ | 9 | 9 | 9 | 9 | 5 | 12 | 13 | 4 | 22 | 22 | 21 | 19 | 17 | 7 | 6 | 6 | 6 | 12 | 12 | 4 | 4 | 14 | 6 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 4 | WNW 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 | — |
| kJ | — | — | — | 7 | 442 | 459 | 499 | 479 | 440 | 363 | 340 | 317 | 309 | 351 | 358 | 375 | 405 | 418 | 431 | 442 | 489 | 488 | 529 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 16 | 16 | 16 | 1958 | 2200 | 11 | 16 | 16 | 11 | 16 | 16 | 2076 | 16 | 16 | 1290 | 2064 | 2064 | 2064 | 229 | 2200 | 2064 | 16 | 229 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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