Surf Forecasts:
How big are the waves at Ammonias today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 3.5ft (1.0m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 6ft (1.9m), 8s period with ENE swell.
- Evening surf: Evening surf (19 Sep, local time) - 6ft (1.9m), 8s period with E swell.
The current surf forecast for Ammonias at 8AM is: 1.0m 16s primary swell from a South-southwest direction and 0.3m 20s secondary swell from a South direction, 2.1m 7s secondary swell from a East direction (forecast issued at 01:00am September 19). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 3.5ft (1.0m) | 16s |
| Afternoon (19 Sep) | 6ft (1.9m) | 8s |
| Evening (19 Sep) | 6ft (1.9m) | 8s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Warm (max 27°C on Sat morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||||||||||
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 | 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) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | ENE 8 | SSW 16 | SSW 16 | E 8 | E 8 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | S 14 | S 14 | S 14 | S 14 | S 14 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 532 | 519 | 463 | 383 | 395 | 414 | 463 | 501 | 453 | 547 | 540 | 507 | 468 | 468 | 468 | 468 | 429 | 417 | 411 | 405 | 394 | 336 | 308 | 308 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 11:33AM0.55m | 11:46PM0.22m | 12:24PM0.57m | 00:31AM0.26m | 1:03PM0.59m | |||||||||||||||||||
Low Tide | 2:25AM0.15m | 8:14PM0.19m | 4:07AM0.15m | 8:09PM0.18m | 5:23AM0.13m | 8:11PM0.17m | ||||||||||||||||||
 |  |  | |  | | |  | | | | | | | | | | | |  | | | | | |
 | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — |
mm | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 24 |
Feels °C | 25 | 25 | 25 | 27 | 27 | 26 | 25 | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | S 14 | S 14 | S 14 | S 14 | S 14 | SSW 14 | SSW 13 | SSW 13 |
| kJ | 532 | 519 | 463 | 367 | 377 | 382 | 463 | 298 | 432 | 547 | 540 | 507 | 468 | 468 | 468 | 468 | 429 | 417 | 411 | 405 | 394 | 304 | 299 | 295 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | S 20 | S 20 | SE 7 | S 18 | S 18 | S 18 | S 16 | SSW 13 | SE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 13 |
| kJ | 18 | 67 | 67 | 26 | 162 | 160 | 99 | 264 | 102 | 22 | 30 | 34 | 30 | 16 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 30 |
Swell 3 Height (m) Direction Period (s) | S 20 | SSE 9 | W 8 | S 18 | SE 7 | SE 7 | SSE 8 | S 13 | S 13 | N 12 | N 11 | W 13 | W 12 | W 12 | N 11 | N 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | N 15 | N 14 |
| kJ | 67 | 7 | 1 | 162 | 23 | 23 | 7 | 3 | 3 | 3 | 2 | 3 | 3 | 11 | 2 | 9 | 11 | 11 | 10 | 10 | 10 | 9 | 17 | 16 |
Wind waves Height (m) Direction Period (s) | ENE 7 | E 7 | E 7 | ENE 7 | ENE 8 | ENE 7 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 335 | 388 | 445 | 383 | 395 | 414 | 416 | 501 | 453 | 364 | 383 | 392 | 293 | 285 | 302 | 335 | 345 | 376 | 358 | 355 | 355 | 336 | 308 | 308 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 38 | 33 | 118 | 16 | 16 | 16 | 16 | 16 | 16 | 33 | 31 | 33 | 16 | 16 | 16 | 16 | 16 | 33 | 31 | 31 | 31 | 16 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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