Surf Forecasts:
How big are the waves at Threes today (22 Aug):
- Afternoon surf: Afternoon surf (22 Aug, local time) - 3.5ft (1.0m), 9s period with NE swell.
- Evening surf: Evening surf (22 Aug, local time) - 2.5ft (0.8m), 9s period with NNE swell.
The current surf forecast for Threes at 7PM is: 0.9m 9s primary swell from a Northeast direction and 0.3m 7s secondary swell from a West-southwest direction (forecast issued at 03:00pm August 22). An open ocean swell of 1.8m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Aug) | - | - |
| Afternoon (22 Aug) | 3.5ft (1.0m) | 9s |
| Evening (22 Aug) | 2.5ft (0.8m) | 9s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 56mm), heaviest during Sat night. Warm (max 29°C on Sat afternoon, min 27°C on Sat night). Winds decreasing (fresh winds from the SW on Sun afternoon, light winds from the WSW by Tue morning). | ||||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | ||||||||||||||||||
1 PM | 4 PM | 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) | NE 9 | NE 9 | NE 9 | NNE 9 | NNE 10 | NNE 10 | NNE 10 | N 10 | N 10 | N 11 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 9 | NNW 11 | SW 9 | SW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 149 | 138 | 123 | 106 | 129 | 143 | 167 | 158 | 164 | 233 | 596 | 517 | 582 | 637 | 571 | 548 | 754 | 121 | 1064 | 952 |
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-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross | cross |
High Tide | 5:28PM0.60m | 2:30AM0.62m | 6:15PM0.63m | 3:38AM0.63m | 6:51PM0.66m | |||||||||||||||
Low Tide | 9:45PM0.52m | 10:27AM0.04m | 10:57PM0.51m | 11:17AM0.01m | ||||||||||||||||
 |  |  | |  | |  | | | |  | | | | | | | | | | |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 6:38 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | — | — | 2 | 2 | 6 | 10 | 2 | 1 | 1 | 1 | — | — | 2 | 4 | 2 | 5 | 2 | — | — | 1 |
Temp °C | 29 | 29 | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 |
Feels °C | 31 | 30 | 31 | 28 | 27 | 28 | 28 | 28 | 28 | 27 | 29 | 30 | 28 | 28 | 29 | 30 | 27 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 9 | S 8 | SSE 9 | NNE 10 | SSE 9 | SE 9 | N 10 | N 10 | N 11 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SW 9 | NNW 10 | NNW 11 | NNW 11 | NNW 11 |
| kJ | 297 | 377 | 459 | 301 | 129 | 161 | 178 | 158 | 164 | 233 | 255 | 239 | 239 | 190 | 222 | 548 | 115 | 121 | 135 | 138 |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NNE 9 | WNW 8 | NNE 10 | NNE 10 | ENE 12 | ENE 12 | ENE 12 | N 11 | N 11 | N 11 | N 10 | N 11 | SSE 8 | SE 9 | ENE 12 | SE 9 | SSE 9 |
| kJ | 149 | 138 | 123 | 106 | 13 | 143 | 167 | 30 | 29 | 29 | 229 | 184 | 143 | 141 | 143 | 234 | 67 | 45 | 43 | 56 |
Swell 3 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 8 | E 13 | WNW 8 | ENE 13 | WNW 8 | WNW 7 | WNW 7 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | NNW 10 | ENE 12 | ENE 15 | ENE 15 | ENE 14 |
| kJ | 27 | 26 | 26 | 23 | 31 | 13 | 33 | 11 | 11 | 5 | 50 | 50 | 49 | 47 | 46 | 115 | 46 | 73 | 72 | 68 |
Wind waves Height (m) Direction Period (s) | WSW 7 | SW 7 | WSW 7 | SSW 8 | S 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | — | SW 9 | SW 9 | SW 9 | SW 9 |
| kJ | 20 | 13 | 10 | 248 | 692 | 512 | 521 | 782 | 782 | 781 | 596 | 517 | 582 | 637 | 571 | — | 754 | 1077 | 1064 | 952 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1940 | 15 | 15 | 2440 | 2440 | 2256 | 1810 | 1810 | 1940 | 2056 | 255 | 1833 | 1810 | 1859 | 1270 | 1810 | 255 | 255 | 255 | 2036 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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