Surf Forecasts:
Boat Basin Rights surf forecast from 9 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 10PM (local time) - 10ft (3.0m), 12s period, WNW swell with 2,483 kJ wave energy.
Best Forecast Surf Conditions for Boat Basin Rights this week:
The most powerful waves expected at Boat Basin Rights in the next 16 days are 3.0m 12s and forecast to arrive on Wednesday (Aug 12) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Tuesday (Aug 11) at 4PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Wed 12th Aug) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Boat Basin Rights over the next 16 days.
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Warm (max 29°C on Mon morning, min 28°C on Mon afternoon). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sat night. Warm (max 29°C on Thu morning, min 28°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 10 | W 10 | W 11 | W 11 | WNW 11 | W 8 | W 9 | W 10 | WNW 12 | WNW 11 | WNW 10 | W 10 | W 9 | W 9 | W 9 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 669 | 725 | 1087 | 1148 | 313 | 675 | 1067 | 1397 | 1913 | 1268 | 1100 | 669 | 619 | 577 | 505 | 793 | 783 | 591 | 451 | 463 | 411 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross |
High Tide | 7:26PM0.87m | 4:39AM0.91m | 8:03PM0.90m | 5:47AM0.92m | 8:36PM0.91m | 6:51AM0.92m | 9:07PM0.92m | 7:51AM0.91m | 9:35PM0.92m | 8:50AM0.88m | 10:02PM0.92m | 9:49AM0.84m | 10:27PM0.91m | ||||||||
Low Tide | 11:34AM0.03m | 11:57PM0.72m | 12:29PM0.00m | 00:55AM0.68m | 1:19PM0.01m | 1:47AM0.62m | 2:05PM0.06m | 2:35AM0.56m | 2:47PM0.13m | 3:22AM0.49m | 3:27PM0.22m | 4:08AM0.42m | 4:04PM0.33m | ||||||||
 |  |  | | | | | |  | |  | | | | | | | | | | | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:43 | — | — | 6:42 | — |
mm | — | 2 | 3 | 3 | 2 | 7 | 1 | — | — | — | — | — | — | — | — | — | 1 | 3 | 1 | 13 | 18 |
Temp °C | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 27 |
Feels °C | 29 | 29 | 29 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 29 | 30 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 11 | NE 10 | SE 11 | WNW 11 | SE 10 | SE 10 | SE 10 | WNW 12 | WNW 11 | WNW 10 | W 10 | SE 11 | SE 10 | SE 10 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | SE 10 | NNW 8 |
| kJ | 236 | 255 | 17 | 19 | 313 | 38 | 36 | 35 | 1913 | 1268 | 1100 | 669 | 55 | 54 | 38 | 793 | 783 | 591 | 451 | 15 | 11 |
Swell 2 Height (m) Direction Period (s) | NE 11 | NE 11 | SE 10 | NNE 10 | SE 11 | NNE 10 | NNE 10 | NNE 10 | SE 10 | SE 10 | SE 10 | SE 11 | N 10 | N 10 | N 11 | SE 10 | SE 10 | SE 10 | SE 10 | E 9 | SE 10 |
| kJ | 58 | 30 | 15 | 10 | 30 | 9 | 20 | 18 | 37 | 52 | 52 | 56 | 17 | 17 | 37 | 27 | 26 | 25 | 25 | 6 | 15 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | E 11 | ENE 11 | NNE 10 | E 10 | E 10 | E 9 | NNE 9 | ENE 11 | E 11 | ENE 11 | NE 12 | N 13 | NW 12 | N 10 | N 10 | ENE 9 | E 9 | NNE 11 | E 9 |
| kJ | 13 | 21 | 9 | 11 | 10 | 8 | 7 | 7 | 8 | 11 | 9 | 11 | 5 | 13 | 53 | 31 | 17 | 9 | 6 | 12 | 13 |
Wind waves Height (m) Direction Period (s) | W 10 | W 10 | W 11 | W 11 | WSW 8 | W 8 | W 9 | W 10 | — | — | — | — | W 9 | W 9 | W 9 | — | — | — | WNW 9 | W 9 | W 8 |
| kJ | 669 | 725 | 1087 | 1148 | 461 | 675 | 1067 | 1397 | — | — | — | — | 619 | 577 | 505 | — | — | — | 314 | 463 | 411 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1836 | 1905 | 1836 | 1836 | 1905 | 1836 | 1836 | 1836 | 1836 | 1290 | 16 | 11 | 1290 | 16 | 16 | 1290 | 2069 | 16 | 2064 | 16 | 231 |
Best forecast wave conditions in Guam | |||||||||||||||||||||
Best forecast wave conditions in Guam | |||||||||||||||||||||
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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 Rights 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 Rights Surf forecast
The above surf forecast table for Boat Basin Rights 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 Rights can be found by selecting the local surf guide option on the grey menu. Our Boat Basin Rights 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 Rights) 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 Rights 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 Rights 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.
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