Surf Forecasts:
How big are the waves at Magoos today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 3.5ft (1.0m), 10s period with NNW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 3ft (0.9m), 10s period with NNW swell.
- Evening surf: Evening surf (21 Sep, local time) - 2.5ft (0.7m), 11s period with NE swell.
The current surf forecast for Magoos at 4AM is: 1.0m 10s primary swell from a North-northwest direction (forecast issued at 09:00pm September 20). An open ocean swell of 1.0m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3.5ft (1.0m) | 10s |
| Afternoon (21 Sep) | 3ft (0.9m) | 10s |
| Evening (21 Sep) | 2.5ft (0.7m) | 11s |
Table - waves today at Magoos. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 77mm), heaviest during Sun night. Warm (max 29°C on Sun night, min 25°C on Sun night). Winds increasing (calm on Sun night, strong winds from the SSE by Tue afternoon). | ||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | ||||||||||||||||
7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NE 12 | NE 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 12 | NNW 12 |
Wave Graph  | ||||||||||||||||||
 kJ | 176 | 173 | 173 | 186 | 198 | 194 | 140 | 142 | 137 | 121 | 145 | 160 | 135 | 135 | 133 | 135 | 177 | 184 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | glassy | on | cross | cross-off | cross-off | off | off | off | off | cross-off | off | off | cross-off | cross-off |
High Tide | 4:47PM0.61m | 1:36AM0.54m | 5:26PM0.63m | 3:11AM0.56m | 5:55PM0.65m | |||||||||||||
Low Tide | 9:54PM0.50m | 9:36AM0.09m | 10:47PM0.46m | 10:33AM0.08m | ||||||||||||||
 |  | |  |  |  | |  | | | | | |  | | | | | |
 | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:17 | — | — |
mm | 2 | — | 1 | 6 | 18 | 2 | 1 | — | — | — | 1 | 2 | 3 | 8 | 8 | 6 | 4 | 4 |
Temp °C | 29 | 29 | 28 | 28 | 25 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 27 | 27 | 28 | 27 |
Feels °C | 33 | 33 | 32 | 32 | 30 | 29 | 31 | 32 | 31 | 29 | 28 | 28 | 26 | 26 | 25 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 7 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SW 7 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 12 | NNW 12 |
| kJ | 113 | 111 | 108 | 105 | 198 | 194 | 140 | 137 | 109 | 55 | 145 | 160 | 135 | 135 | 133 | 135 | 177 | 184 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | NNW 10 | NE 11 | NE 11 | NE 11 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 |
| kJ | 176 | 173 | 173 | 186 | 91 | 75 | 73 | 59 | 57 | 81 | 94 | 92 | 90 | 89 | 82 | 63 | 48 | 47 |
Swell 3 Height (m) Direction Period (s) | NE 11 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 12 | NE 12 | NE 11 | SW 7 | WSW 7 | WSW 7 | SW 7 | E 13 | E 13 | E 13 | E 13 |
| kJ | 90 | 89 | 84 | 79 | 79 | 79 | 79 | 142 | 137 | 121 | 37 | 31 | 19 | 19 | 3 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSE 8 | SSE 8 | SSE 6 | SSE 7 | SSE 6 | SSE 7 | S 8 | S 8 | SSW 8 |
| kJ | — | — | — | — | — | — | — | — | — | 56 | 82 | 119 | 268 | 257 | 417 | 408 | 399 | 437 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 13 | 18 | 2057 | 0 | 0 | 13 | 6 | 0 | 0 | 0 | 0 | 1833 | 1284 | 1833 | 1908 | 1284 | 1284 | 1284 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
Header Global | ||||||||||||||||||
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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