Surf Forecasts:
How big are the waves at Threes today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 3.5ft (1.1m), 7s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 3.5ft (1.0m), 7s period with WSW swell.
- Evening surf: Evening surf (18 Jul, local time) - 3ft (0.9m), 6s period with WSW swell.
The current surf forecast for Threes at 6AM is: 1.1m 7s primary swell from a West-southwest direction (forecast issued at 03:00am July 18). An open ocean swell of 0.5m 9s is not directed at the surf break, a second open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 3.5ft (1.1m) | 7s |
| Afternoon (18 Jul) | 3.5ft (1.0m) | 7s |
| Evening (18 Jul) | 3ft (0.9m) | 6s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Sun morning. Warm (max 29°C on Sat morning, min 27°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | ||||||||||||||||||||||
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 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 102 | 99 | 99 | 102 | 85 | 83 | 83 | 59 | 53 | 57 | 40 | 40 | 39 | 94 | 99 | 99 | 99 | 102 | 93 | 109 | 109 | 112 | 102 | 75 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:59PM0.77m | 9:42AM0.68m | 11:32PM0.76m | 10:46AM0.62m | 00:03AM0.74m | 11:59AM0.56m | ||||||||||||||||||
Low Tide | 4:33AM0.38m | 4:32PM-0.03m | 5:27AM0.31m | 5:13PM0.08m | 6:24AM0.25m | 5:55PM0.20m | ||||||||||||||||||
 |  |  |  | | |  | | | | | | | | | | | | |  | | | | | |
 | — | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — |
mm | — | 1 | 2 | — | — | 1 | — | — | — | 1 | 1 | 2 | 1 | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 30 | 30 | 31 | 30 | 31 | 31 | 30 | 30 | 30 | 31 | 32 | 30 | 31 | 30 | 30 | 31 | 32 | 32 | 31 | 31 | 30 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | WSW 7 | E 9 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
| kJ | 44 | 43 | 43 | 42 | 42 | 83 | 42 | 59 | 53 | 57 | 40 | 40 | 39 | 94 | 99 | 99 | 99 | 102 | 93 | 109 | 109 | 112 | 102 | 75 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 7 | S 7 | SSE 7 | SSE 7 | E 9 | SE 7 | E 9 | E 9 | E 9 | E 9 | SSW 6 | SSW 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 |
| kJ | 14 | 14 | 9 | 10 | 10 | 42 | 2 | 42 | 41 | 41 | 41 | 28 | 25 | 41 | 41 | 41 | 42 | 43 | 44 | 46 | 45 | 43 | 42 | 42 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | SE 8 | SE 11 | SE 11 | SE 7 | NNW 6 | S 6 | S 6 | S 6 | SSW 5 | E 9 | E 9 | SE 8 | SE 10 | SE 8 | SE 10 | SE 8 | SE 8 | SSE 8 | SSE 8 | SE 9 | SE 9 | SE 9 |
| kJ | 9 | 4 | 9 | 5 | 5 | 8 | 4 | 12 | 12 | 11 | 8 | 41 | 41 | 11 | 15 | 17 | 24 | 16 | 17 | 13 | 12 | 41 | 41 | 41 |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | — | WSW 7 | — | — | — | — | — | — | — | — | — | — | — | — | SSE 2 | — | — | — | — |
| kJ | 102 | 99 | 99 | 102 | 85 | — | 83 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 15 | 255 | 255 | 255 | 255 | 255 | 255 | 255 | 18 | 14 | 15 | 15 | 15 | 15 | 13 | 13 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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