Surf Forecasts:
How big are the waves at Threes today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 4.5ft (1.4m), 8s period with W swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 5ft (1.5m), 8s period with W swell.
- Evening surf: Evening surf (17 Aug, local time) - 5ft (1.5m), 8s period with W swell.
The current surf forecast for Threes at 2PM is: 1.5m 8s primary swell from a West direction and 0.3m 10s secondary swell from a North-northeast direction (forecast issued at 09:00am August 17). An open ocean swell of 0.3m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 4.5ft (1.4m) | 8s |
| Afternoon (17 Aug) | 5ft (1.5m) | 8s |
| Evening (17 Aug) | 5ft (1.5m) | 8s |
Table - waves today at Threes. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 31mm), heaviest during Wed morning. Warm (max 29°C on Tue afternoon, min 27°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||||||
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) | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 234 | 235 | 239 | 324 | 326 | 284 | 277 | 246 | 217 | 223 | 190 | 190 | 160 | 161 | 165 | 173 | 173 | 169 | 169 | 169 | 86 | 103 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | on | on | cross-on | cross-on | glassy | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross |
High Tide | 10:44AM0.63m | 10:55PM0.71m | 11:50AM0.58m | 11:23PM0.69m | 1:07PM0.55m | |||||||||||||||||
Low Tide | 4:45AM0.19m | 4:39PM0.21m | 5:33AM0.15m | 5:16PM0.31m | 6:24AM0.12m | 5:58PM0.40m | ||||||||||||||||
 |  | | |  | |  | | | | | | | | | | | | | |  | | |
 | 6:07 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | 1 | 1 | 2 | 2 | 3 | — | — | 2 | 1 | 1 | 1 | 1 | 1 | — | 2 | 2 | 4 | 4 | 3 | — | — |
Temp °C | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 |
Feels °C | 29 | 28 | 28 | 29 | 31 | 31 | 31 | 32 | 32 | 33 | 32 | 33 | 33 | 31 | 30 | 30 | 30 | 29 | 30 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | W 8 | SE 10 | SE 9 | SE 9 | SE 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 |
| kJ | 234 | 14 | 14 | 13 | 13 | 284 | 277 | 246 | 217 | 223 | 190 | 190 | 160 | 161 | 165 | 173 | 173 | 169 | 169 | 169 | 86 | 103 |
Swell 2 Height (m) Direction Period (s) | SE 10 | NNE 10 | NNE 10 | NNE 9 | E 8 | E 9 | E 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SE 9 | WNW 9 | WNW 8 |
| kJ | 14 | 19 | 18 | 17 | 13 | 13 | 13 | 22 | 21 | 41 | 40 | 30 | 30 | 58 | 55 | 55 | 55 | 55 | 56 | 70 | 82 | 72 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 9 | NNE 9 | NNE 9 | SE 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SE 9 | SE 9 |
| kJ | 12 | 13 | 13 | 13 | 17 | 17 | 21 | 13 | 12 | 13 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 71 | 70 |
Wind waves Height (m) Direction Period (s) | — | W 8 | W 8 | W 8 | W 8 | — | — | — | — | — | — | — | — | — | — | NNW 3 | NNW 3 | N 3 | N 4 | NNW 4 | N 5 | N 5 |
| kJ | — | 235 | 239 | 324 | 326 | — | — | — | — | — | — | — | — | — | — | 3 | 4 | 5 | 9 | 24 | 44 | 32 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 255 | 255 | 255 | 255 | 255 | 255 | 255 | 2056 | 0 | 0 | 14 | 15 | 15 | 14 | 14 | 2056 | 2056 | 2056 | 2056 | 2069 | 2069 | 2063 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||
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