Surf Forecasts:
How big are the waves at Threes today (21 Oct):
- Afternoon surf: Afternoon surf (21 Oct, local time) - 5ft (1.6m), 9s period with SW swell.
- Evening surf: Evening surf (21 Oct, local time) - 4.5ft (1.4m), 9s period with SW swell.
The current surf forecast for Threes at 12AM is: 1.4m 9s primary swell from a Southwest direction (forecast issued at 03:00pm October 20). An open ocean swell of 0.8m 9s 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 Oct) | - | - |
| Afternoon (21 Oct) | 5ft (1.6m) | 9s |
| Evening (21 Oct) | 4.5ft (1.4m) | 9s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 22 | ||||||||||||||||||
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) | W 11 | SW 9 | SW 9 | SW 9 | WSW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | NE 9 | WNW 11 | WNW 11 | W 11 | W 11 | W 11 | W 12 | WNW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 292 | 459 | 402 | 328 | 270 | 231 | 216 | 216 | 168 | 161 | 180 | 177 | 231 | 202 | 202 | 265 | 256 | 251 | 279 | 303 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:14PM0.66m | 2:32AM0.54m | 4:46PM0.68m | 3:53AM0.57m | 5:13PM0.69m | |||||||||||||||
Low Tide | 10:06PM0.43m | 9:31AM0.11m | 10:46PM0.36m | 10:24AM0.13m | ||||||||||||||||
 | |  |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | 6:00 | — | — | — | — | — | — | — | 5:59 | — | — | — | — | — | — | — | 5:59 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 31 | 30 | 31 | 32 | 30 | 29 | 30 | 29 | 31 | 29 | 29 | 28 | 28 | 27 | 28 | 29 | 29 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SW 9 | SW 9 | SW 9 | WSW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | ENE 8 | ENE 9 | WSW 9 | NE 9 | WNW 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | WNW 12 |
| kJ | 470 | 459 | 402 | 328 | 270 | 231 | 216 | 216 | 168 | 150 | 181 | 177 | 231 | 202 | 258 | 258 | 258 | 258 | 238 | 303 |
Swell 2 Height (m) Direction Period (s) | W 11 | W 12 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NE 9 | ENE 8 | ENE 8 | WSW 9 | WSW 9 | WNW 11 | WSW 9 | WSW 9 | WNW 11 | W 11 | W 11 | W 11 | W 12 | WSW 8 |
| kJ | 292 | 224 | 99 | 96 | 94 | 94 | 107 | 126 | 126 | 161 | 180 | 97 | 140 | 111 | 202 | 265 | 256 | 251 | 279 | 35 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | W 11 | SE 10 | SE 10 | W 11 | WNW 11 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | SE 9 | WNW 11 | SE 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SE 9 |
| kJ | 90 | 90 | 121 | 76 | 76 | 127 | 170 | 179 | 167 | 121 | 88 | 29 | 128 | 31 | 111 | 88 | 82 | 54 | 37 | 22 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NE 3 | ENE 3 | ENE 3 | — | — | ENE 9 | — | ENE 9 | — | — | — | — | — | ENE 9 |
| kJ | — | — | — | — | — | — | 2 | 2 | 3 | — | — | 207 | — | 238 | — | — | — | — | — | 273 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 1889 | 2036 | 1270 | 1284 | 1284 | 1284 | 1284 | 1284 | 1284 | 1284 | 1270 | 1284 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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