- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Boat Basin Lefts surfForecast / Guam / Guam
48hr Weather and Surf, issued 3 am Sunday 19 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
27.3° 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 6AM is: 2.2m 12s primary swell from a North direction (forecast issued at 03:00am April 19). An open ocean swell of 0.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Apr) | 7ft (2.1m) | 12s |
| Afternoon (19 Apr) | 7ft (2.1m) | 12s |
| Evening (19 Apr) | 6.5ft (2.0m) | 13s |
Table - waves today at Boat Basin Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 19 | Monday 20 | Tuesday 21 | ||||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1565 | 1459 | 1462 | 1320 | 1320 | 1299 | 1229 | 1288 | 1288 | 1088 | 977 | 843 | 723 | 617 | 511 | 433 | 456 | 396 | 404 | 411 | 411 | 425 | 418 | 418 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | glass | cross | cross- on | glass | glass | glass | glass | cross | cross | cross | cross- on | cross | cross- off | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 7:55AM 0.92 | 10:15PM 0.93 | 8:29AM 0.92 | 11:17PM 0.91 | 9:08AM 0.90 | |||||||||||||||||||
Low Tide / height (m) | 2:41AM 0.57 | 3:05PM 0.03 | 3:29AM 0.63 | 3:53PM -0.00 | 4:19AM 0.67 | 4:44PM 0.01 | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | ||||||||||||||||||||||
| Sunrise | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:34 | - | - |
 |  |  | | |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 26 | 26 |
| Feels °C (?) | 30 | 29 | 29 | 31 | 31 | 31 | 31 | 32 | 31 | 30 | 28 | 30 | 30 | 30 | 30 | 28 | 29 | 27 | 26 | 27 | 29 | 28 | 28 | 28 |
- 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