Surf Forecasts:
Magoos surf forecast from 17 Sep 2026:
- Best quality surf: Sunday 20 Sep, 7PM (local time) - 3ft (0.9m), 9s period, NNW swell with glassy winds.
- Most powerful swell: Wednesday 23 Sep, 7AM (local time) - 3.5ft (1.0m), 12s period, NNW swell with 260 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 10AM (local time) - 2.5ft (0.8m), 9s period with NNW 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 Sunday (Sep 20) at 10AM. The primary swell is predicted to be 0.8m and 9s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Magoos in the next 16 days are 1.0m 12s and forecast to arrive on Wednesday (Sep 23) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 8s period and expected on Saturday (Sep 19) at 4AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 20th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 7PM (Sun 20th Sep) | 3ft (0.9m) 9s |
| Most Powerful | 7AM (Wed 23rd Sep) | 3.5ft (1.0m) 12s |
Table - best surf conditions forecast for Magoos over the next 16 days.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sun night. Warm (max 29°C on Fri morning, min 28°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 100mm), heaviest during Tue night. Warm (max 29°C on Mon morning, min 25°C on Tue night). Winds increasing (light winds from the SSE on Mon afternoon, fresh winds from the SSW by Tue night). | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 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) | NNE 8 | NNE 9 | N 8 | N 8 | N 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NE 12 | NE 11 | NE 10 | NNW 11 | NNW 10 | NNW 12 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 60 | 79 | 45 | 46 | 64 | 92 | 101 | 110 | 119 | 96 | 142 | 119 | 87 | 138 | 123 | 256 | 214 | 167 | 115 | 77 | 47 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy |
High Tide | 2:20PM0.59m | 11:05PM0.58m | 3:49PM0.59m | 00:01AM0.55m | 4:47PM0.61m | 1:36AM0.54m | 5:26PM0.63m | 3:11AM0.56m | 5:55PM0.65m | 4:22AM0.60m | 6:20PM0.67m | 5:19AM0.64m | 6:43PM0.69m | ||||||||
Low Tide | 7:01PM0.51m | 7:22AM0.09m | 8:32PM0.52m | 8:30AM0.10m | 9:54PM0.50m | 9:36AM0.09m | 10:47PM0.46m | 10:33AM0.08m | 11:26PM0.42m | 11:20AM0.07m | 00:00AM0.37m | 12:02PM0.08m | 00:33AM0.31m | ||||||||
 | |  | | | | | | |  | | | |  | | | | | | |  | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:20 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — |
mm | 4 | 2 | 1 | 1 | 3 | 3 | 2 | 2 | 5 | — | 5 | 11 | 10 | 10 | 38 | 8 | 7 | 11 | 6 | 7 | 9 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 26 | 27 | 27 | 27 | 28 | 28 | 27 |
Feels °C | 31 | 30 | 31 | 32 | 32 | 33 | 34 | 34 | 33 | 32 | 33 | 31 | 30 | 32 | 28 | 29 | 28 | 29 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 8 | NNE 9 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | SW 7 | SW 7 | SW 7 | WSW 7 | NNW 11 | NNW 10 | NNW 12 | NNW 11 | NNW 11 | SW 6 | SW 6 | WSW 7 |
| kJ | 227 | 79 | 264 | 264 | 179 | 136 | 130 | 93 | 93 | 105 | 86 | 65 | 42 | 138 | 123 | 256 | 214 | 167 | 49 | 39 | 41 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | S 7 | N 8 | N 8 | N 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NE 12 | NE 11 | NE 10 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 6 | NNW 10 | NNW 10 | SSE 8 |
| kJ | 60 | 23 | 45 | 46 | 64 | 92 | 101 | 110 | 119 | 96 | 142 | 119 | 87 | 43 | 32 | 26 | 25 | 39 | 115 | 77 | 37 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SE 9 | SE 8 | SE 8 | SSE 7 | SSE 8 | NE 10 | SSE 8 | NE 10 | NE 10 | NNW 9 | NNW 9 | NNW 8 | NE 10 | NNW 12 | SE 8 | NE 9 | NE 9 | NE 9 | SSE 8 | NNW 9 |
| kJ | 16 | 21 | 18 | 18 | 36 | 45 | 50 | 51 | 85 | 79 | 71 | 50 | 64 | 80 | 86 | 33 | 41 | 43 | 41 | 43 | 47 |
Wind waves Height (m) Direction Period (s) | — | WSW 8 | SW 8 | — | — | — | — | — | — | — | — | — | — | — | SSE 8 | S 5 | S 6 | S 8 | — | — | — |
| kJ | — | 230 | 176 | — | — | — | — | — | — | — | — | — | — | — | 134 | 43 | 60 | 29 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 233 | 233 | 17 | 13 | 17 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 1284 | 1833 | 1906 | 1833 | 233 | 233 | 7 |
Best forecast wave conditions in Guam | |||||||||||||||||||||
Best forecast wave conditions in Guam | |||||||||||||||||||||
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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.
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