Surf Forecasts:
How big are the waves at Boat Basin Lefts today (16 Aug):
- Morning surf: Morning surf (16 Aug, local time) - 4.5ft (1.4m), 8s period with WNW swell.
- Afternoon surf: Afternoon surf (16 Aug, local time) - 4.5ft (1.4m), 8s period with W swell.
- Evening surf: Evening surf (16 Aug, local time) - 4.5ft (1.4m), 8s period with W swell.
The current surf forecast for Boat Basin Lefts at 8AM is: 1.4m 8s primary swell from a West direction and 0.2m 9s secondary swell from a East-northeast direction (forecast issued at 03:00am August 16). An open ocean swell of 0.4m 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 (16 Aug) | 4.5ft (1.4m) | 8s |
| Afternoon (16 Aug) | 4.5ft (1.4m) | 8s |
| Evening (16 Aug) | 4.5ft (1.4m) | 8s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 44mm), heaviest during Sun afternoon. Warm (max 29°C on Sun morning, min 26°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||||||||||
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 8 | W 8 | W 8 | WNW 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | NE 9 | NE 9 | NE 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 264 | 257 | 257 | 264 | 257 | 257 | 257 | 247 | 246 | 275 | 270 | 239 | 228 | 22 | 28 | 28 | 259 | 235 | 219 | 187 | 156 | 156 | 160 | 135 |
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 | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-off | glassy | cross-off | glassy | on | on | on | cross-on |
High Tide | 10:02PM0.92m | 9:49AM0.84m | 10:27PM0.91m | 10:51AM0.79m | 10:52PM0.89m | 11:57AM0.74m | ||||||||||||||||||
Low Tide | 4:08AM0.42m | 4:04PM0.33m | 4:54AM0.36m | 4:38PM0.43m | 5:41AM0.32m | 5:12PM0.52m | ||||||||||||||||||
 | |  | |  | |  | | | | | | | | | |  |  | | | |  | | | |
 | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | 3 | 1 | 1 | 1 | — | 3 | 8 | 4 | 7 | 2 | 1 | 1 | 3 | 3 | 3 | 1 | — | — | 1 | 1 | 1 | — | — | — |
Temp °C | 28 | 28 | 28 | 29 | 29 | 28 | 26 | 27 | 27 | 26 | 27 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 28 | 29 | 29 | 29 | 28 |
Feels °C | 30 | 30 | 30 | 31 | 32 | 31 | 27 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 30 | 33 | 32 | 32 | 32 | 33 | 33 | 32 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | SE 10 | SE 10 | WNW 8 | SE 10 | W 8 | W 8 | W 8 | NNE 11 | W 8 | NE 10 | NE 10 | S 6 | NE 9 | WSW 8 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
| kJ | 264 | 25 | 25 | 264 | 15 | 257 | 257 | 247 | 24 | 275 | 25 | 24 | 22 | 22 | 336 | 316 | 259 | 235 | 219 | 187 | 156 | 156 | 160 | 135 |
Swell 2 Height (m) Direction Period (s) | SE 10 | NNE 11 | ENE 9 | SE 10 | ENE 9 | SE 10 | SE 10 | SE 10 | SE 10 | NNE 10 | E 8 | E 8 | NE 10 | E 9 | WNW 8 | WNW 8 | NE 9 | NE 9 | NE 9 | NE 9 | SE 9 | SE 9 | SE 9 | SSE 9 |
| kJ | 25 | 12 | 8 | 15 | 8 | 15 | 15 | 15 | 14 | 22 | 13 | 13 | 23 | 13 | 28 | 28 | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 30 |
Swell 3 Height (m) Direction Period (s) | NE 10 | ENE 9 | NNE 11 | ENE 9 | NE 10 | ENE 9 | ENE 9 | NNE 11 | E 8 | SE 10 | SE 10 | SE 10 | E 8 | SE 9 | NE 9 | NE 9 | E 9 | E 8 | E 8 | SE 9 | NNE 9 | NE 9 | NE 9 | NE 9 |
| kJ | 16 | 8 | 12 | 8 | 4 | 16 | 15 | 25 | 13 | 14 | 15 | 15 | 13 | 14 | 22 | 21 | 13 | 13 | 13 | 21 | 15 | 20 | 20 | 20 |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | W 8 | — | W 8 | — | — | — | W 8 | — | W 8 | W 8 | W 8 | WSW 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 165 | 257 | 257 | — | 257 | — | — | — | 246 | — | 270 | 239 | 228 | 327 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 16 | 16 | 16 | 16 | 229 | 1290 | 229 | 229 | 229 | 229 | 229 | 229 | 229 | 229 | 0 | 0 | 0 | 0 | 16 | 16 | 16 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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