Surf Forecasts:
How big are the waves at Boat Basin Lefts today (29 Aug):
- Morning surf: Morning surf (29 Aug, local time) - 2ft (0.6m), 12s period with ENE swell.
- Afternoon surf: Afternoon surf (29 Aug, local time) - 4ft (1.2m), 7s period with W swell.
- Evening surf: Evening surf (29 Aug, local time) - 2.5ft (0.8m), 9s period with NW swell.
The current surf forecast for Boat Basin Lefts at 5PM is: 1.2m 7s primary swell from a West direction and 0.6m 11s secondary swell from a East-northeast direction (forecast issued at 09:00am August 29). An open ocean swell of 0.3m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Aug) | 2ft (0.6m) | 12s |
| Afternoon (29 Aug) | 4ft (1.2m) | 7s |
| Evening (29 Aug) | 2.5ft (0.8m) | 9s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 27mm), heaviest during Sun afternoon. Warm (max 28°C on Sat morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||||||||
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 12 | ENE 12 | ENE 12 | W 7 | W 7 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | ENE 11 | ENE 10 | W 8 | W 8 | WNW 8 | WNW 6 | NW 8 | NW 9 | WNW 10 | W 10 | W 9 | W 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 91 | 90 | 94 | 128 | 128 | 93 | 79 | 93 | 97 | 97 | 44 | 43 | 98 | 74 | 202 | 91 | 115 | 115 | 179 | 356 | 288 | 416 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | cross-on | on | on |
High Tide | 7:43AM0.85m | 9:00PM0.88m | 8:35AM0.85m | 9:20PM0.89m | 9:29AM0.83m | 9:42PM0.89m | ||||||||||||||||
Low Tide | 2:24PM0.24m | 2:55AM0.45m | 2:58PM0.30m | 3:34AM0.38m | 3:33PM0.38m | |||||||||||||||||
 | | | |  | | | |  |  | | | | |  |  | | | | | | | |
 | 6:09 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | 2 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | 4 | 3 | — | — | 1 | 2 | 1 | 1 | 3 | 1 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 27 |
Feels °C | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 30 | 29 | 29 | 29 | 26 | 27 | 28 | 29 | 29 | 29 | 29 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | W 7 | ENE 11 | ENE 11 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | ENE 10 | WNW 9 | WSW 7 | WSW 7 | WNW 10 | WNW 10 | W 9 | W 9 |
| kJ | 68 | 79 | 94 | 82 | 79 | 75 | 54 | 75 | 66 | 60 | 62 | 81 | 98 | 74 | 40 | 30 | 71 | 63 | 179 | 253 | 288 | 276 |
Swell 2 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 12 | SE 10 | NW 9 | ENE 11 | NE 11 | NE 11 | NE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 11 | ENE 10 | SE 9 | NE 10 | NE 10 | NE 10 | WSW 8 | WSW 7 | NE 11 | ENE 11 |
| kJ | 91 | 90 | 88 | 15 | 13 | 78 | 57 | 57 | 56 | 44 | 44 | 43 | 44 | 42 | 14 | 25 | 26 | 27 | 50 | 46 | 29 | 44 |
Swell 3 Height (m) Direction Period (s) | NW 9 | SE 10 | SE 10 | NW 9 | SE 10 | W 9 | NW 9 | SE 10 | SE 9 | SE 9 | WNW 8 | WNW 8 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | SE 10 | NE 10 | NE 11 | SE 9 | SE 9 |
| kJ | 12 | 23 | 15 | 13 | 15 | 13 | 21 | 14 | 14 | 14 | 27 | 26 | 25 | 27 | 17 | 26 | 26 | 24 | 28 | 29 | 22 | 23 |
Wind waves Height (m) Direction Period (s) | NW 3 | NW 3 | — | W 7 | W 7 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 4 | NW 4 | NW 4 | NW 4 | WNW 8 | WNW 6 | NW 8 | NW 9 | — | W 10 | WSW 7 | W 9 |
| kJ | 2 | 3 | — | 128 | 128 | 93 | 79 | 93 | 97 | 97 | 14 | 9 | 7 | 8 | 202 | 91 | 115 | 115 | — | 356 | 64 | 416 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 11 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 1836 | 11 | 11 | 2064 | 1290 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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