Surf Forecasts:
How big are the waves at Ammonias today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 2.5ft (0.7m), 20s period with SW swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 2.5ft (0.7m), 20s period with SW swell.
- Evening surf: Evening surf (15 Sep, local time) - 2.5ft (0.8m), 19s period with SSW swell.
The current surf forecast for Ammonias at 6PM is: 0.7m 19s primary swell from a Southwest direction and 0.4m 12s secondary swell from a Southwest direction (forecast issued at 01:00pm September 15). An open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 2.5ft (0.7m) | 20s |
| Afternoon (15 Sep) | 2.5ft (0.7m) | 20s |
| Evening (15 Sep) | 2.5ft (0.8m) | 19s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 22mm), heaviest during Thu night. Warm (max 27°C on Tue afternoon, min 25°C on Tue night). Mainly fresh winds. | |||||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||||
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 | 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) | SW 20 | SW 20 | SW 19 | SW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SW 18 | SW 18 | SSW 18 | SW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SW 16 | ENE 7 | ENE 8 | SSW 17 | SSW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 392 | 388 | 384 | 384 | 475 | 465 | 418 | 399 | 449 | 449 | 541 | 444 | 386 | 443 | 412 | 326 | 258 | 465 | 504 | 587 | 659 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross |
High Tide | 4:58PM0.30m | 7:44AM0.54m | 9:00AM0.53m | ||||||||||||||||||
Low Tide | 1:23PM0.26m | 11:40PM0.08m | 00:11AM0.10m | ||||||||||||||||||
 | | |  | | | |  | | | | |  | | |  | | | | | | |
 | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — |
 | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | — | — | — | — | — | — | — | 1 | 1 | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |
Temp °C | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 20 | SW 20 | SW 19 | SW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SW 18 | SW 18 | SSW 18 | SW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSW 17 | SSW 18 |
| kJ | 392 | 388 | 384 | 384 | 475 | 465 | 418 | 399 | 449 | 449 | 541 | 444 | 386 | 443 | 412 | 326 | 258 | 258 | 326 | 587 | 659 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | SW 12 | SW 12 | SW 12 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SSW 19 | SSW 19 | SW 10 | SSE 10 |
| kJ | 34 | 38 | 38 | 38 | 41 | 39 | 38 | 37 | 36 | 33 | 32 | 50 | 51 | 51 | 72 | 71 | 96 | 212 | 214 | 15 | 10 |
Swell 3 Height (m) Direction Period (s) | SW 12 | E 12 | E 12 | E 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SSE 12 | SW 11 | SW 11 | SSW 20 | SSW 19 | SW 10 | SW 10 | SSE 10 | WSW 10 |
| kJ | 40 | 26 | 26 | 44 | 38 | 37 | 37 | 35 | 33 | 31 | 43 | 43 | 27 | 30 | 30 | 158 | 214 | 16 | 15 | 10 | 9 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | ENE 6 | ENE 6 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 9 |
| kJ | 67 | 104 | 101 | 114 | 111 | 108 | 91 | 113 | 141 | 153 | 162 | 162 | 220 | 210 | 251 | 279 | 344 | 465 | 504 | 531 | 577 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 31 | 16 | 31 | 16 | 16 | 15 | 15 | 31 | 31 | 31 | 31 | 31 | 16 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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