Surf Forecasts:
How big are the waves at Boat Basin Lefts today (17 Jul):
- Morning surf: Morning surf (17 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
- Afternoon surf: Afternoon surf (17 Jul, local time) - 1.5ft (0.4m), 9s period with ENE swell.
- Evening surf: Evening surf (17 Jul, local time) - 1.5ft (0.5m), 9s period with E swell.
The current surf forecast for Boat Basin Lefts at 3PM is: 0.4m 9s primary swell from a East-northeast direction (forecast issued at 09:00am July 17). An open ocean swell of 0.4m 8s is not directed at the surf break, a second open ocean swell of 1.0m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 1.5ft (0.4m) | 9s |
| Afternoon (17 Jul) | 1.5ft (0.4m) | 9s |
| Evening (17 Jul) | 1.5ft (0.5m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Sun morning. Warm (max 29°C on Sat morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | ||||||||||||||||||||
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) | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 28 | 29 | 43 | 29 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 42 | 42 | 42 | 27 | 27 | 27 | 27 | 27 | 41 | 27 | 41 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 8:44AM0.90m | 10:59PM0.94m | 9:45AM0.84m | 11:30PM0.93m | 10:51AM0.78m | |||||||||||||||||
Low Tide | 3:53PM0.08m | 4:41AM0.56m | 4:34PM0.19m | 5:36AM0.49m | 5:13PM0.31m | |||||||||||||||||
 | |  | |  | | |  | | | | | | | | | | | | |  | | |
 | 6:01 | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — |
mm | 1 | 1 | — | 1 | 2 | 1 | 1 | — | 1 | 1 | — | 1 | 1 | 1 | 1 | — | 2 | 3 | 1 | 1 | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 |
Feels °C | 32 | 31 | 30 | 30 | 31 | 30 | 30 | 30 | 30 | 30 | 31 | 29 | 32 | 31 | 30 | 30 | 30 | 31 | 30 | 31 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 |
| kJ | 132 | 128 | 43 | 29 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 42 | 77 | 70 | 55 | 53 | 53 | 57 | 45 | 45 | 45 | 47 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 |
| kJ | 28 | 29 | 16 | 16 | 15 | 15 | 9 | 5 | 5 | 10 | 10 | 9 | 42 | 42 | 27 | 27 | 27 | 27 | 27 | 41 | 27 | 41 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | N 7 | NNW 7 | NNW 6 | SSE 7 | S 5 | S 5 | S 5 | S 5 | NNW 6 | SE 8 | SE 8 | S 5 | S 5 |
| kJ | 17 | 17 | 10 | 10 | 5 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 15 | 4 | 8 | 5 | 8 | 4 | 11 | 11 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | — | — | — | — | — | S 5 | S 5 | S 5 | — | — |
| kJ | — | — | 102 | 99 | 99 | 96 | 93 | 99 | 99 | 99 | 102 | 102 | — | — | — | — | — | 8 | 8 | 8 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 11 | 229 | 229 | 16 | 16 | 16 | 16 | 16 | 2075 | 229 | 229 | 229 | 229 | 229 | 229 | 229 | 1996 | 1958 | 229 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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