Surf Forecasts:
How big are the waves at Threes today (20 Oct):
- Afternoon surf: Afternoon surf (20 Oct, local time) - 4.5ft (1.4m), 10s period with WSW swell.
- Evening surf: Evening surf (20 Oct, local time) - 5ft (1.5m), 10s period with WSW swell.
The current surf forecast for Threes at 12AM is: 1.4m 10s primary swell from a West-southwest direction (forecast issued at 03:00pm October 19). An open ocean swell of 0.7m 9s is not directed at the surf break, a second open ocean swell of 1.9m 8s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | - | - |
| Afternoon (20 Oct) | 4.5ft (1.4m) | 10s |
| Evening (20 Oct) | 5ft (1.5m) | 10s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 28°C on Tue morning, min 26°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Mon 19 | Tuesday 20 | Wednesday 21 | ||||||||||||||||||
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) | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | W 11 | W 12 | W 12 | W 11 | SW 9 | WSW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | NE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 431 | 349 | 356 | 411 | 356 | 114 | 393 | 380 | 233 | 360 | 320 | 328 | 276 | 249 | 276 | 261 | 190 | 194 | 188 | 231 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:32PM0.65m | 00:55AM0.54m | 4:14PM0.66m | 2:32AM0.54m | 4:46PM0.68m | |||||||||||||||
Low Tide | 9:11PM0.48m | 8:33AM0.10m | 10:06PM0.43m | 9:31AM0.11m | ||||||||||||||||
 | |  | | | |  |  | | |  |  | | | | | | | | | |
 | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 5:59 | — | — |
mm | 3 | 2 | 3 | 3 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | 27 |
Feels °C | 26 | 26 | 27 | 28 | 28 | 28 | 29 | 29 | 31 | 32 | 30 | 31 | 30 | 30 | 29 | 29 | 31 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SW 9 | WSW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | ENE 9 | NE 9 |
| kJ | 431 | 349 | 356 | 411 | 356 | 553 | 637 | 513 | 426 | 360 | 320 | 328 | 276 | 249 | 276 | 261 | 190 | 194 | 181 | 231 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | W 11 | W 12 | W 12 | W 11 | SSE 7 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | WSW 9 | WSW 9 |
| kJ | 103 | 92 | 101 | 90 | 70 | 114 | 393 | 380 | 233 | 56 | 88 | 96 | 94 | 94 | 129 | 126 | 150 | 154 | 188 | 177 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 11 | W 11 | SE 10 | W 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SE 10 | W 11 | SE 10 | W 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 |
| kJ | 32 | 112 | 108 | 44 | 116 | 70 | 90 | 90 | 90 | 90 | 96 | 119 | 76 | 85 | 97 | 126 | 123 | 123 | 128 | 173 |
Wind waves Height (m) Direction Period (s) | SSE 8 | S 8 | S 8 | S 8 | SSE 8 | SE 7 | — | — | — | — | — | — | — | — | — | ENE 3 | — | — | — | — |
| kJ | 1084 | 919 | 572 | 513 | 406 | 103 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2051 | 2051 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1810 | 1889 | 1838 | 1838 | 1270 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
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