Surf Forecasts:
How big are the waves at Threes today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 2.5ft (0.7m), 7s period with SW swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 3ft (0.9m), 7s period with SW swell.
- Evening surf: Evening surf (21 Jul, local time) - 3ft (0.9m), 7s period with SW swell.
The current surf forecast for Threes at 10AM is: 0.7m 7s primary swell from a Southwest direction (forecast issued at 03:00am July 21). An open ocean swell of 0.5m 9s is not directed at the surf break, a second open ocean swell of 0.7m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 2.5ft (0.7m) | 7s |
| Afternoon (21 Jul) | 3ft (0.9m) | 7s |
| Evening (21 Jul) | 3ft (0.9m) | 7s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 20mm), heaviest during Wed night. Warm (max 29°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||||
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 | 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 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 62 | 50 | 49 | 49 | 56 | 79 | 86 | 99 | 118 | 118 | 121 | 139 | 127 | 134 | 121 | 118 | 104 | 89 | 77 | 77 | 96 | 98 | 109 | 125 |
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 | cross | cross | cross-on | cross-on | cross | cross | cross | cross-on | on | glassy | cross-on | cross-on | glassy | glassy | glassy | cross-on | cross-on | cross |
High Tide | 00:34AM0.72m | 1:26PM0.52m | 1:07AM0.70m | 3:06PM0.52m | 1:44AM0.69m | 4:45PM0.55m | ||||||||||||||||||
Low Tide | 7:23AM0.19m | 6:40PM0.31m | 8:22AM0.13m | 7:34PM0.41m | 9:21AM0.08m | 8:43PM0.47m | ||||||||||||||||||
 | |  |  | | |  | | | | | | | | | | | | | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — |
mm | 1 | 5 | 1 | — | — | — | — | — | — | — | 2 | 2 | — | — | — | 1 | 3 | 4 | 1 | 1 | 1 | 1 | 1 | 2 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 29 | 28 | 28 |
Feels °C | 33 | 31 | 31 | 30 | 29 | 30 | 30 | 30 | 31 | 31 | 31 | 32 | 30 | 33 | 32 | 33 | 31 | 31 | 31 | 33 | 32 | 32 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 |
| kJ | 62 | 50 | 49 | 49 | 56 | 79 | 86 | 99 | 118 | 118 | 121 | 139 | 127 | 134 | 121 | 118 | 104 | 89 | 77 | 77 | 96 | 98 | 109 | 125 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | SE 10 | SE 10 | S 5 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 |
| kJ | 42 | 42 | 42 | 41 | 41 | 35 | 53 | 20 | 73 | 73 | 71 | 64 | 63 | 61 | 60 | 59 | 58 | 55 | 54 | 68 | 70 | 87 | 88 | 92 |
Swell 3 Height (m) Direction Period (s) | S 5 | S 5 | SE 9 | SE 9 | SE 10 | E 9 | ENE 9 | SE 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 13 | 12 | 29 | 27 | 33 | 41 | 27 | 73 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 31 | 31 | 26 | 26 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 6 | SSE 6 | S 6 | S 6 | S 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 21 | 39 | 35 | 45 | 35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 1873 | 1873 | 2063 | 2063 | 255 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 0 | 14 | 9 | 0 | 0 | 0 | 14 | 14 | 14 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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