Surf Forecasts:
How big are the waves at Threes today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 3ft (0.9m), 7s period with WSW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 3ft (0.9m), 10s period with WNW swell.
- Evening surf: Evening surf (31 Aug, local time) - 3ft (0.9m), 9s period with WNW swell.
The current surf forecast for Threes at 2AM is: 1.1m 7s primary swell from a West direction and 0.5m 10s secondary swell from a Northeast direction (forecast issued at 09:00pm August 30). The wind direction is predicted to be cross-shore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 3ft (0.9m) | 7s |
| Afternoon (31 Aug) | 3ft (0.9m) | 10s |
| Evening (31 Aug) | 3ft (0.9m) | 9s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Wed afternoon. Warm (max 29°C on Mon morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | ||||||||||||||||
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 8 | W 8 | W 7 | W 7 | W 7 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 146 | 160 | 127 | 130 | 108 | 86 | 148 | 148 | 156 | 146 | 173 | 197 | 291 | 304 | 357 | 365 | 492 | 528 |
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 | cross | glassy | glassy | cross-on | cross-on | on | on | on | on | cross-on | on | cross-on | glassy |
High Tide | 9:15PM0.71m | 9:18AM0.69m | 9:36PM0.71m | 10:14AM0.66m | 10:00PM0.71m | |||||||||||||
Low Tide | 3:17AM0.18m | 3:25PM0.16m | 3:57AM0.12m | 4:00PM0.25m | ||||||||||||||
 | |  | |  | |  |  | |  | | | | | |  | | | |
 | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | 10 | 2 | — | 2 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 27 | 27 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 |
Feels °C | 29 | 30 | 31 | 30 | 30 | 31 | 33 | 34 | 33 | 32 | 32 | 31 | 31 | 32 | 31 | 32 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 7 | W 7 | W 7 | WSW 7 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 |
| kJ | 146 | 160 | 127 | 130 | 108 | 74 | 148 | 148 | 156 | 146 | 173 | 197 | 291 | 304 | 357 | 365 | 492 | 528 |
Swell 2 Height (m) Direction Period (s) | NE 10 | NE 10 | NE 10 | NE 10 | WNW 9 | WNW 9 | WSW 7 | WSW 7 | SW 6 | WSW 7 | WSW 7 | SW 6 | NE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | NE 10 |
| kJ | 54 | 52 | 50 | 50 | 45 | 86 | 56 | 59 | 42 | 59 | 75 | 49 | 57 | 76 | 68 | 65 | 65 | 48 |
Swell 3 Height (m) Direction Period (s) | NW 10 | NW 9 | WNW 9 | WNW 9 | NE 10 | NE 10 | NE 10 | NE 11 | NE 10 | NE 11 | NE 10 | NE 11 | SE 9 | SE 9 | SE 9 | SE 9 | E 11 | E 11 |
| kJ | 25 | 20 | 31 | 30 | 50 | 51 | 54 | 55 | 54 | 55 | 53 | 56 | 13 | 13 | 13 | 13 | 21 | 20 |
Wind waves Height (m) Direction Period (s) | — | N 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 1833 | 1833 | 14 | 14 | 1810 | 14 | 0 | 0 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 0 |
Best forecast wave conditions in Guam | ||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||
Header Global | ||||||||||||||||||
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