Surf Forecasts:
How big are the waves at Boat Basin Lefts today (04 Jul):
- Morning surf: Morning surf (04 Jul, local time) - 3.5ft (1.0m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (04 Jul, local time) - 6.5ft (2.0m), 16s period with E swell.
- Evening surf: Evening surf (04 Jul, local time) - 8ft (2.5m), 14s period with E swell.
The current surf forecast for Boat Basin Lefts at 5AM is: 0.8m 8s primary swell from a East-northeast direction and 0.5m 5s secondary swell from a North direction (forecast issued at 09:00pm July 03). An open ocean swell of 0.4m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Jul) | 3.5ft (1.0m) | 8s |
| Afternoon (04 Jul) | 6.5ft (2.0m) | 16s |
| Evening (04 Jul) | 8ft (2.5m) | 14s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 131mm), heaviest during Mon morning. Warm (max 30°C on Sat morning, min 26°C on Mon morning). Winds increasing (light winds from the NNE on Sat morning, severe gales from the WSW by Mon morning). | ||||||||||||||||||||||||
Fri 3 | Saturday 4 | Sunday 5 | Monday 6 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 12 | E 16 | E 14 | E 14 | E 14 | E 14 | E 14 | ENE 14 | E 14 | E 15 | E 15 | E 15 | ENE 16 | ENE 15 | ENE 15 | NNE 14 | N 14 | N 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 72 | 68 | 120 | 92 | 92 | 150 | 193 | 1928 | 2218 | 2775 | 2651 | 3141 | 3606 | 3882 | 4122 | 5583 | 6963 | 6869 | 8781 | 8408 | 8268 | 9838 | 8809 | 6235 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | 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-on | on | on | cross-on | cross-on | cross-on | cross | cross |
High Tide | 11:21PM0.87m | 9:08AM0.80m | 11:46PM0.88m | 10:00AM0.76m | 00:09AM0.89m | 11:03AM0.72m | ||||||||||||||||||
Low Tide | 4:39AM0.65m | 4:25PM0.18m | 5:28AM0.61m | 4:59PM0.25m | 6:19AM0.55m | |||||||||||||||||||
 |  | | |  |  |  | | |  | | | | | | | |  | | | | | |  | |
 | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — |
 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 |
mm | 1 | — | — | 1 | — | — | 1 | 2 | 1 | — | 2 | 1 | 1 | 1 | 1 | 2 | 4 | 8 | 7 | 12 | 17 | 21 | 30 | 14 |
Temp °C | 29 | 28 | 28 | 28 | 28 | 30 | 30 | 30 | 29 | 29 | 28 | 29 | 29 | 29 | 30 | 29 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 31 | 30 | 31 | 31 | 31 | 33 | 33 | 32 | 31 | 31 | 28 | 30 | 29 | 29 | 30 | 28 | 25 | 24 | 22 | 21 | 20 | 18 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 8 | SE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | E 16 | E 14 | E 14 | E 14 | E 14 | E 14 | ENE 14 | E 14 | E 15 | E 15 | E 15 | ENE 16 | ENE 15 | ENE 15 | NNE 14 | N 14 | N 13 |
| kJ | 72 | 68 | 25 | 92 | 92 | 150 | 154 | 1928 | 2218 | 2775 | 2651 | 3141 | 3606 | 3882 | 4122 | 5583 | 6963 | 6869 | 8781 | 8408 | 8268 | 9838 | 8809 | 6235 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | NNE 11 | SE 10 | SE 9 | E 12 | E 12 | SSE 9 | NNE 10 | SE 9 | SE 9 | SE 10 | SE 10 | SSE 10 | — | — | — | — | NNE 8 | NNE 9 | N 10 | SSE 9 | SE 10 | WNW 11 |
| kJ | 16 | 25 | 24 | 23 | 22 | 75 | 193 | 32 | 34 | 22 | 23 | 14 | 14 | 9 | — | — | — | — | 306 | 600 | 1060 | 9 | 4 | 649 |
Swell 3 Height (m) Direction Period (s) | NNE 12 | NNE 11 | WSW 7 | NNE 11 | NNE 11 | NNE 10 | E 17 | NNE 10 | SE 9 | — | — | — | NNE 10 | — | — | — | — | — | — | — | — | — | SSE 9 | SE 11 |
| kJ | 26 | 24 | 4 | 23 | 38 | 35 | 87 | 34 | 22 | — | — | — | 19 | — | — | — | — | — | — | — | — | — | 8 | 5 |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 4 | ENE 8 | N 4 | N 5 | — | — | — | — | NNE 10 | N 5 | NNE 10 | N 10 | NNE 10 | N 6 | N 6 | N 7 | N 7 | NNW 7 | NW 7 | WNW 8 | W 8 | W 9 | WSW 10 |
| kJ | 4 | 14 | 120 | 10 | 11 | — | — | — | — | 33 | 61 | 32 | 70 | 18 | 156 | 255 | 319 | 466 | 440 | 722 | 1916 | 2438 | 4453 | 5424 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1958 | 2074 | 1290 | 1290 | 1290 | 1290 | 11 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1290 | 1836 | 1858 | 1837 | 1837 | 1837 | 1836 | 1836 | 1836 | 1836 | 1864 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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