Surf Forecasts:
How big are the waves at Ammonias today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 8ft (2.4m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 7ft (2.2m), 8s period with ENE swell.
- Evening surf: Evening surf (20 Oct, local time) - 7ft (2.2m), 8s period with ENE swell.
The current surf forecast for Ammonias at 3AM is: 2.3m 8s primary swell from a East-northeast direction and 0.4m 16s secondary swell from a Southwest direction (forecast issued at 07:00pm October 19). An open ocean swell of 0.4m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 8ft (2.4m) | 8s |
| Afternoon (20 Oct) | 7ft (2.2m) | 8s |
| Evening (20 Oct) | 7ft (2.2m) | 8s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue morning. Warm (max 26°C on Wed afternoon, min 23°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Mon 19 | Tuesday 20 | Wednesday 21 | |||||||||||||||||
5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 507 | 507 | 525 | 604 | 620 | 744 | 636 | 585 | 585 | 555 | 555 | 555 | 556 | 449 | 462 | 408 | 368 | 331 | 322 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-on |
High Tide | 00:18AM0.28m | 12:01PM0.53m | 00:54AM0.34m | 12:35PM0.52m | |||||||||||||||
Low Tide | 6:54PM0.16m | 4:43AM0.19m | 7:00PM0.13m | 5:53AM0.19m | 7:12PM0.10m | ||||||||||||||
 |  | | |  |  | | | | |  | | | | | | | | | |
 | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — |
 | 6:08 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — |
mm | — | — | — | — | — | 1 | 1 | — | 1 | — | 1 | — | — | — | — | — | — | 1 | — |
Temp °C | 25 | 25 | 24 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 24 |
Feels °C | 23 | 24 | 22 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 25 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | N 12 | N 11 | N 11 | N 11 | N 11 | N 11 | N 10 | N 10 | N 10 | N 10 | N 10 | S 11 | S 12 | S 12 | SW 15 | SE 7 | SE 6 | SSE 6 | SE 6 |
| kJ | 67 | 63 | 61 | 38 | 37 | 36 | 35 | 33 | 32 | 18 | 17 | 21 | 25 | 25 | 58 | 12 | 19 | 16 | 19 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | SW 16 | SW 16 | SW 16 | SW 16 | S 11 | SW 15 | SE 8 | SW 16 | SW 16 | SW 16 | SW 16 | S 12 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 44 | 44 | 43 | 64 | 64 | 65 | 65 | 20 | 56 | 11 | 63 | 64 | 64 | 62 | 25 | 56 | 56 | 55 | 54 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 16 | SW 16 | S 12 | S 11 | S 11 | S 11 | SSW 15 | S 11 | SW 15 | S 11 | N 10 | N 10 | NNW 9 | N 9 | S 12 | N 9 | SE 8 | S 10 |
| kJ | 57 | 61 | 64 | 23 | 22 | 21 | 21 | 21 | 21 | 60 | 21 | 17 | 17 | 17 | 15 | 25 | 6 | 11 | 8 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 507 | 507 | 525 | 604 | 620 | 744 | 636 | 585 | 585 | 555 | 555 | 555 | 556 | 449 | 462 | 408 | 368 | 331 | 322 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 31 | 31 | 299 | 46 | 31 | 38 | 33 | 33 | 31 | 38 | 38 | 16 | 33 | 16 | 31 | 31 | 16 | 16 | 33 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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