Surf Forecasts:
Boat Basin Rights surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 10PM (local time) - 4ft (1.2m), 11s period, N swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 10ft (3.0m), 8s period, W swell with 1,093 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 10PM (local time) - 4ft (1.2m), 11s period with N swell.
Best Forecast Surf Conditions for Boat Basin Rights this week:
The surf forecast for Boat Basin Rights over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 10PM. The primary swell is predicted to be 1.2m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Boat Basin Rights in the next 16 days are 3.0m 8s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Friday (Aug 28) at 1PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 23rd Aug) | 4ft (1.2m) 11s |
| Best Surf | 10PM (Sun 23rd Aug) | 4ft (1.2m) 11s |
| Most Powerful | 4AM (Fri 28th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Boat Basin Rights over the next 16 days.
Short Range ForecastHeavy rain (total 55mm), heaviest during Sun night. Warm (max 29°C on Sat morning, min 26°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 341mm), heaviest during Thu morning. Warm (max 28°C on Thu night, min 25°C on Tue night). Winds increasing (light winds from the W on Wed morning, near gales from the SSW by Thu morning). | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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) | NE 9 | NE 9 | NNE 9 | N 10 | N 11 | N 11 | NNW 11 | NNW 11 | NNW 11 | ENE 13 | NW 11 | NW 11 | NW 11 | W 7 | NW 11 | ENE 11 | ENE 15 | NE 13 | ENE 13 | ENE 13 | ENE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 152 | 141 | 149 | 235 | 394 | 279 | 206 | 202 | 140 | 139 | 126 | 133 | 150 | 527 | 72 | 24 | 142 | 87 | 67 | 65 | 59 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | cross | cross-on | cross | cross-off | cross | cross | cross | cross | cross |
High Tide | 5:59PM0.73m | 1:47AM0.78m | 6:41PM0.76m | 2:57AM0.78m | 7:12PM0.79m | 4:06AM0.79m | 7:38PM0.81m | 5:07AM0.81m | 8:01PM0.83m | 6:01AM0.83m | 8:21PM0.85m | 6:53AM0.85m | 8:41PM0.87m | ||||||||
Low Tide | 9:03PM0.71m | 10:19AM0.22m | 10:36PM0.71m | 11:11AM0.20m | 11:37PM0.69m | 11:57AM0.17m | 00:23AM0.66m | 12:37PM0.16m | 1:03AM0.62m | 1:14PM0.17m | 1:40AM0.58m | 1:49PM0.19m | 2:17AM0.52m | ||||||||
 | |  |  | | |  |  | | | | | |  | | | |  | | | | |
 | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:36 | — | — | 6:35 | — |
mm | 1 | 4 | 11 | 1 | 5 | 20 | — | — | 13 | 8 | 3 | 25 | 21 | 9 | 63 | 115 | 87 | 10 | 3 | 2 | 1 |
Temp °C | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 28 | 29 | 28 | 28 |
Feels °C | 31 | 30 | 30 | 30 | 30 | 30 | 28 | 28 | 29 | 29 | 27 | 29 | 31 | 30 | 25 | 21 | 21 | 26 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | NE 9 | SSE 9 | N 10 | N 11 | SW 8 | SSE 8 | NNW 11 | NNW 11 | WSW 8 | S 7 | NW 11 | NW 11 | ENE 12 | NW 11 | ENE 11 | ENE 15 | NE 13 | ENE 13 | ENE 13 | ENE 12 |
| kJ | 194 | 141 | 213 | 235 | 394 | 375 | 134 | 202 | 140 | 261 | 100 | 133 | 150 | 81 | 72 | 24 | 142 | 87 | 67 | 65 | 59 |
Swell 2 Height (m) Direction Period (s) | NE 9 | WNW 9 | NNE 9 | ENE 12 | ENE 12 | SSE 8 | NNW 11 | SSE 7 | SE 9 | NNW 11 | NW 11 | ENE 13 | ENE 12 | SE 9 | ENE 12 | SE 10 | SSE 10 | NW 11 | NW 12 | SE 10 | SE 11 |
| kJ | 152 | 26 | 149 | 30 | 29 | 160 | 206 | 57 | 38 | 105 | 126 | 93 | 82 | 13 | 53 | 15 | 10 | 41 | 37 | 14 | 18 |
Swell 3 Height (m) Direction Period (s) | WNW 8 | E 13 | WNW 8 | WNW 8 | W 7 | N 11 | ENE 12 | SE 9 | ENE 14 | ENE 13 | ENE 13 | SE 9 | SE 9 | NE 8 | SE 10 | ENE 15 | SE 10 | SE 10 | ESE 10 | NE 8 | NNE 10 |
| kJ | 22 | 14 | 13 | 11 | 4 | 279 | 46 | 41 | 63 | 139 | 98 | 14 | 21 | 2 | 15 | 22 | 16 | 14 | 9 | 2 | 9 |
Wind waves Height (m) Direction Period (s) | WSW 8 | S 8 | SSW 8 | SSW 8 | SSW 8 | — | SW 9 | SW 9 | SW 9 | S 7 | WSW 8 | WSW 8 | WSW 8 | W 7 | WSW 8 | WSW 9 | WSW 9 | W 9 | W 9 | WSW 10 | WSW 10 |
| kJ | 50 | 364 | 339 | 603 | 588 | — | 412 | 528 | 654 | 103 | 232 | 327 | 356 | 527 | 806 | 1261 | 1692 | 1017 | 1619 | 2282 | 2504 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1996 | 1996 | 2425 | 2386 | 1958 | 1958 | 1836 | 3 | 1958 | 229 | 2055 | 1905 | 229 | 1836 | 1864 | 1836 | 1836 | 2066 | 1836 | 1836 | 1836 |
Best forecast wave conditions in Guam | |||||||||||||||||||||
Best forecast wave conditions in Guam | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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