Surf Forecasts:
How big are the waves at Threes today (30 Aug):
- Morning surf: Morning surf (30 Aug, local time) - 2.5ft (0.8m), 8s period with WSW swell.
- Afternoon surf: Afternoon surf (30 Aug, local time) - 3.5ft (1.1m), 8s period with W swell.
- Evening surf: Evening surf (30 Aug, local time) - 3ft (0.9m), 8s period with WSW swell.
The current surf forecast for Threes at 12AM is: 0.9m 7s primary swell from a West-southwest direction and 0.7m 8s secondary swell from a Northwest direction (forecast issued at 09:00pm August 29). An open ocean swell of 0.6m 11s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Aug) | 2.5ft (0.8m) | 8s |
| Afternoon (30 Aug) | 3.5ft (1.1m) | 8s |
| Evening (30 Aug) | 3ft (0.9m) | 8s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 90mm), heaviest during Mon night. Warm (max 28°C on Sat night, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | ||||||||||||||||
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 7 | W 6 | WSW 7 | W 8 | W 8 | WSW 8 | W 8 | W 8 | W 8 | WSW 8 | W 8 | W 7 | W 7 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | W 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 113 | 100 | 75 | 114 | 113 | 77 | 138 | 144 | 144 | 94 | 138 | 127 | 131 | 132 | 196 | 231 | 253 | 359 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | on | on | on | on | on | on | on | on |
High Tide | 8:55PM0.72m | 8:28AM0.71m | 9:15PM0.71m | 9:18AM0.69m | 9:36PM0.71m | |||||||||||||
Low Tide | 2:41AM0.25m | 2:52PM0.08m | 3:17AM0.18m | 3:25PM0.16m | ||||||||||||||
 | | |  |  | |  | | |  | | | | | | | | | |
 | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | — | — | — | 1 | — | — | 1 | 1 | 4 | 6 | 5 | 6 | 3 | 2 | 3 | 5 | 4 | 6 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 30 | 31 | 31 | 30 | 29 | 29 | 29 | 28 | 28 | 29 | 30 | 30 | 29 | 28 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 6 | WSW 7 | W 8 | ENE 11 | WSW 8 | WNW 8 | W 8 | NE 10 | WSW 8 | NE 10 | WNW 8 | WNW 9 | WSW 7 | WSW 7 | WNW 10 | WNW 9 | W 9 |
| kJ | 113 | 100 | 75 | 114 | 76 | 77 | 46 | 144 | 54 | 94 | 50 | 39 | 45 | 74 | 51 | 231 | 253 | 359 |
Swell 2 Height (m) Direction Period (s) | ENE 11 | ENE 11 | ENE 11 | ENE 11 | WNW 8 | ENE 11 | NE 11 | NE 11 | NW 10 | NE 10 | WNW 9 | ENE 10 | ENE 10 | NE 10 | NE 10 | WSW 7 | WSW 7 | NE 11 |
| kJ | 79 | 78 | 78 | 76 | 27 | 76 | 55 | 55 | 25 | 52 | 30 | 40 | 40 | 51 | 54 | 66 | 59 | 55 |
Swell 3 Height (m) Direction Period (s) | SE 10 | WNW 8 | SE 10 | WNW 8 | SE 9 | WNW 8 | SE 9 | WNW 8 | SE 9 | NW 9 | SE 9 | NW 10 | SE 10 | SE 10 | SE 10 | NE 11 | NE 11 | SE 9 |
| kJ | 15 | 37 | 14 | 28 | 14 | 39 | 22 | 28 | 22 | 20 | 23 | 25 | 24 | 33 | 33 | 55 | 55 | 22 |
Wind waves Height (m) Direction Period (s) | — | — | NW 8 | — | W 8 | NW 4 | W 8 | — | W 8 | WNW 4 | W 8 | W 7 | W 7 | WNW 9 | WNW 10 | — | — | — |
| kJ | — | — | 57 | — | 113 | 9 | 138 | — | 144 | 25 | 138 | 127 | 131 | 132 | 196 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 14 | 1810 | 14 | 1810 | 1810 | 1810 | 1859 | 14 | 14 | 1810 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 14 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
Header Global | ||||||||||||||||||
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