- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 3 am Saturday 25 Apr 2026 ChSTForecast update in hr min s Forecast update imminent
Boat Basin Lefts surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Boat Basin Lefts sea temperature is
27.7° C
(Which is slightly cooler than normal)How big are the waves at Boat Basin Lefts today?
The current surf forecast for Boat Basin Lefts at 10AM is: 0.8m 14s primary swell from a North-northeast direction and 0.5m 9s secondary swell from a Northeast direction, 1.1m 7s secondary swell from a East direction (forecast issued at 03:00am April 25). The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 2.5ft (0.8m) | 14s |
| Afternoon (25 Apr) | 2.5ft (0.7m) | 14s |
| Evening (25 Apr) | 2ft (0.6m) | 13s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Warm (max 28°C on Sat morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 13 | NNE 13 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 8 | |
236 | 236 | 233 | 229 | 175 | 145 | 139 | 135 | 145 | 145 | 163 | 158 | 171 | 171 | 176 | 206 | 245 | 294 | 268 | 259 | 266 | 226 | 202 | 201 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 3:37AM0.86m | 1:21PM0.74m | 4:21AM0.86m | 3:06PM0.71m | 4:56AM0.87m | 4:39PM0.73m | ||||||||||||||||||
Low Tide | 9:20AM0.65m | 8:50PM0.25m | 10:28AM0.57m | 9:52PM0.32m | 11:18AM0.49m | |||||||||||||||||||
 | |  |  |  | | |  | | | | | | | | | | |  | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | |
Temp °C | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 27 |
27 | 27 | 26 | 26 | 28 | 29 | 29 | 27 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 29 | 29 | 29 | 30 | |
Swell 1 Height (m) Direction Period (s) | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 12 | NNE 12 | NNE 12 | NNE 12 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 13 | NNE 15 |
 kJ | 236 | 236 | 233 | 229 | 175 | 145 | 139 | 135 | 135 | 133 | 133 | 95 | 93 | 85 | 81 | 56 | 57 | 115 | 101 | 99 | 98 | 98 | 96 | 135 |
Swell 2 Height (m) Direction Period (s) | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 9 | NNW 8 | NNW 8 | NNW 8 | NE 10 | NE 10 | NE 10 | NNE 15 | NNE 15 | NNE 15 | N 18 | NE 18 | NNE 18 | NNE 17 | NNE 16 | NNE 16 | NW 10 |
| kJ | 46 | 45 | 41 | 40 | 29 | 27 | 25 | 27 | 6 | 6 | 6 | 14 | 14 | 4 | 22 | 21 | 21 | 6 | 13 | 30 | 28 | 52 | 51 | 4 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | NW 9 | NW 8 | NNW 8 | SE 12 | SE 12 | SE 11 | NNW 8 | NW 7 | NW 7 | NE 10 | NW 7 | NW 7 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | N 12 |
| kJ | 6 | 6 | 6 | 6 | 6 | 3 | 3 | 7 | 5 | 5 | 5 | 6 | 2 | 2 | 4 | 2 | 2 | 4 | 3 | 3 | 3 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 6 | E 6 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 8 |
| kJ | 104 | 104 | 104 | 107 | 81 | 86 | 89 | 110 | 145 | 145 | 163 | 158 | 171 | 171 | 176 | 206 | 245 | 294 | 268 | 259 | 266 | 226 | 202 | 201 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1304 | 1373 | 1373 | 1373 | 1373 | 1373 | 1373 | 1836 | 1836 | 1837 | 1836 | 20 | 20 | 20 | 20 | 1836 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Boat Basin Lefts surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest