Surf Forecasts:
Boat Basin Lefts surf forecast from 3 Jun 2026:
- Best quality surf: Thursday 4 Jun, 1AM (local time) - 2.5ft (0.7m), 11s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 8 Jun, 10PM (local time) - 3ft (0.9m), 13s period, N swell with 272 kJ wave energy.
- Next surfable swell (1★+): Thursday 4 Jun, 1AM (local time) - 2.5ft (0.7m), 11s period with WNW swell.
Best Forecast Surf Conditions for Boat Basin Lefts this week:
The surf forecast for Boat Basin Lefts over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jun 04) at 1AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.7m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Boat Basin Lefts in the next 16 days are 0.9m 13s and forecast to arrive on Monday (Jun 08) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Tuesday (Jun 09) at 1AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 4th Jun) | 2.5ft (0.7m) 11s |
| Best Surf | 1AM (Thu 4th Jun) | 2.5ft (0.7m) 11s |
| Most Powerful | 10PM (Mon 8th Jun) | 3ft (0.9m) 13s |
Table - best surf conditions forecast for Boat Basin Lefts over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Warm (max 29°C on Wed afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Mon night. Warm (max 29°C on Sat afternoon, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wed 3 | Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WNW 11 | WNW 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | N 11 | N 11 | N 11 | N 11 | N 13 | N 11 | NNE 12 | NNE 12 | NNE 11 | NNE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 108 | 106 | 82 | 82 | 84 | 86 | 79 | 64 | 59 | 40 | 40 | 90 | 87 | 108 | 84 | 215 | 116 | 248 | 232 | 164 | 121 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:23PM0.85m | 8:29AM0.81m | 00:03AM0.85m | 9:07AM0.79m | 00:40AM0.85m | 9:52AM0.76m | 1:13AM0.86m | 10:52AM0.72m | 1:42AM0.87m | 12:13PM0.68m | 2:10AM0.88m | 1:55PM0.66m | 2:39AM0.89m | ||||||||
Low Tide | 4:12AM0.69m | 4:14PM0.12m | 5:02AM0.69m | 4:52PM0.16m | 5:59AM0.68m | 5:30PM0.21m | 7:01AM0.64m | 6:10PM0.27m | 8:01AM0.58m | 6:55PM0.35m | 8:55AM0.50m | 7:47PM0.43m | 9:43AM0.39m | ||||||||
 |  |  |  | | | | | | |  | | | | | |  | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 |
 | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:46 | — | 6:46 |
mm | — | — | 2 | — | — | — | — | — | — | — | 1 | — | — | — | — | 2 | 2 | 1 | — | 5 | 1 |
Temp °C | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 27 | 29 | 29 | 27 | 29 |
Feels °C | 31 | 31 | 33 | 33 | 30 | 31 | 31 | 30 | 31 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 29 | 30 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | E 9 | E 9 | E 9 | N 11 | N 11 | N 11 | N 11 | N 13 | N 11 | NNE 12 | NNE 12 | NNE 11 | NNE 11 |
| kJ | 108 | 106 | 82 | 82 | 84 | 86 | 79 | 64 | 59 | 40 | 40 | 90 | 87 | 108 | 84 | 215 | 116 | 248 | 232 | 164 | 121 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 9 | NW 9 | NW 10 | NW 10 | NW 9 | E 9 | E 8 | E 8 | N 14 | ENE 8 | N 13 | ESE 9 | SSE 9 | ENE 8 | SE 9 |
| kJ | 101 | 99 | 67 | 64 | 34 | 34 | 20 | 19 | 35 | 33 | 20 | 39 | 36 | 35 | 62 | 26 | 92 | 8 | 15 | 12 | 21 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | ESE 11 | ESE 10 | NNE 8 | NNE 9 | NNE 8 | NE 9 | NE 9 | NE 8 | SE 7 | N 14 | NE 8 | ENE 8 | SE 9 | ENE 8 | NW 10 | ENE 8 | SE 9 | E 8 |
| kJ | 20 | 18 | 18 | 11 | 10 | 6 | 15 | 6 | 19 | 28 | 18 | 18 | 35 | 10 | 22 | 3 | 13 | 4 | 12 | 12 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ESE 3 | — | SE 7 | SE 7 | SE 8 | SE 7 | — | SE 7 | SE 6 | ESE 6 | SE 7 | ESE 6 | ESE 8 | E 4 | ESE 4 | E 5 |
| kJ | — | — | — | — | — | 1 | — | 14 | 27 | 28 | 27 | — | 23 | 20 | 24 | 27 | 43 | 81 | 11 | 17 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 20 | 20 | 0 | 1304 |
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.
Information about the Boat Basin Lefts Surf forecast
The above surf forecast table for Boat Basin Lefts provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Boat Basin Lefts can be found by selecting the local surf guide option on the grey menu. Our Boat Basin Lefts surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Boat Basin Lefts) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Boat Basin Lefts may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Boat Basin Lefts is 1 km (1 miles) from Agana. If you plan a holiday in Guam, look for hotels and other accommodation in Agana. Agana has rooms for a wide range of budgets as well as car hire and transport links.
Nearest