Surf Forecasts:
Magoos surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 10PM (local time) - 1.5ft (0.5m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 4PM (local time) - 5ft (1.6m), 13s period, NNW swell with 775 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 10PM (local time) - 1.5ft (0.5m), 8s period with W swell.
Best Forecast Surf Conditions for Magoos this week:
The surf forecast for Magoos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 10PM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.6m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Magoos in the next 16 days are 1.6m 13s and forecast to arrive on Tuesday (Aug 25) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 9s period and expected on Sunday (Aug 23) at 7PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 20th Aug) | 1.5ft (0.5m) 8s |
| Best Surf | 10PM (Thu 20th Aug) | 1.5ft (0.5m) 8s |
| Most Powerful | 4PM (Tue 25th Aug) | 5ft (1.6m) 13s |
Table - best surf conditions forecast for Magoos over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Warm (max 29°C on Tue morning, min 27°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Sun night. Warm (max 29°C on Fri morning, min 28°C on Fri morning). Winds increasing (calm on Fri night, fresh winds from the SW by Sun morning). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 8 | W 8 | W 8 | W 8 | W 8 | WNW 9 | WNW 8 | WNW 8 | W 8 | W 10 | W 9 | E 16 | ENE 12 | ENE 12 | ENE 12 | NE 12 | NNE 12 | NNE 12 | N 12 | N 12 | NNW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 190 | 160 | 136 | 140 | 116 | 126 | 55 | 40 | 36 | 70 | 60 | 248 | 628 | 677 | 545 | 303 | 347 | 411 | 553 | 668 | 540 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | on | cross-on | cross-on | cross | cross | cross | glassy | glassy | glassy | cross | cross-on | cross | cross-off | cross | cross | cross | cross-off | cross | cross-off |
High Tide | 11:49AM0.63m | 11:18PM0.71m | 1:11PM0.59m | 11:45PM0.68m | 2:53PM0.58m | 00:19AM0.65m | 4:30PM0.60m | 1:08AM0.62m | 5:34PM0.62m | 2:19AM0.62m | 6:16PM0.64m | 3:34AM0.62m | 6:49PM0.66m | ||||||||
Low Tide | 5:31PM0.37m | 6:28AM0.17m | 6:16PM0.45m | 7:22AM0.15m | 7:14PM0.51m | 8:21AM0.13m | 8:33PM0.54m | 9:23AM0.11m | 10:00PM0.54m | 10:23AM0.09m | 11:05PM0.53m | 11:16AM0.06m | 11:51PM0.50m | ||||||||
 | |  |  |  |  | | |  | | |  |  | | | | | | |  | | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — |
mm | — | — | 1 | 1 | — | 1 | — | 1 | — | — | — | — | 1 | — | 1 | 4 | 5 | 10 | 5 | 8 | 23 |
Temp °C | 29 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 32 | 32 | 31 | 29 | 30 | 32 | 33 | 33 | 33 | 34 | 34 | 34 | 32 | 32 | 31 | 28 | 28 | 29 | 28 | 29 | 31 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | E 16 | ENE 12 | ENE 12 | ENE 12 | SSE 9 | S 9 | NNE 12 | N 12 | N 12 | NNW 12 |
| kJ | 190 | 160 | 136 | 140 | 116 | 126 | 82 | 80 | 72 | 50 | 38 | 248 | 628 | 677 | 545 | 300 | 399 | 411 | 553 | 668 | 540 |
Swell 2 Height (m) Direction Period (s) | NE 9 | SE 9 | SE 9 | SSE 9 | SE 9 | SE 9 | WNW 8 | NNE 6 | NNE 6 | NNE 6 | W 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | NE 12 | NNE 12 | SW 10 | SSE 9 | ENE 12 | SSE 9 |
| kJ | 20 | 20 | 41 | 32 | 42 | 41 | 55 | 24 | 26 | 27 | 60 | 70 | 101 | 116 | 180 | 303 | 347 | 16 | 238 | 26 | 180 |
Swell 3 Height (m) Direction Period (s) | SE 9 | NE 9 | NE 9 | NE 8 | NE 8 | WSW 8 | NNE 6 | WNW 8 | W 8 | W 10 | NNE 6 | WSW 8 | W 9 | W 9 | WNW 8 | WNW 8 | ENE 12 | ENE 12 | ENE 12 | ENE 15 | ENE 14 |
| kJ | 21 | 20 | 19 | 18 | 18 | 24 | 30 | 40 | 36 | 70 | 26 | 34 | 39 | 39 | 24 | 13 | 29 | 29 | 27 | 22 | 36 |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 4 | NW 4 | N 4 | — | — | — | — | — | — | WSW 8 | WSW 7 | WSW 7 | SW 5 | WSW 6 | SSW 9 | SW 8 | SSW 8 | SW 8 |
| kJ | — | — | — | 6 | 20 | 9 | — | — | — | — | — | — | 33 | 31 | 36 | 53 | 119 | 721 | 411 | 683 | 497 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2062 | 13 | 2062 | 2069 | 16 | 2057 | 16 | 0 | 0 | 0 | 4 | 2057 | 2057 | 2056 | 2062 | 2192 | 1833 | 1833 | 1862 | 1833 |
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 Magoos 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 Magoos Surf forecast
The above surf forecast table for Magoos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Magoos can be found by selecting the local surf guide option on the grey menu. Our Magoos 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 (Magoos) 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 Magoos 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.
Magoos is 7 km (4 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