Surf Forecasts:
How big are the waves at Ammonias today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 2ft (0.6m), 18s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 2ft (0.6m), 17s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
The current surf forecast for Ammonias at 5AM is: 0.5m 17s primary swell from a Southwest direction and 0.8m 8s secondary swell from a East direction (forecast issued at 01:00am August 20). An open ocean swell of 0.8m 6s 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 Aug) | 2ft (0.6m) | 18s |
| Afternoon (20 Aug) | 2ft (0.6m) | 17s |
| Evening (20 Aug) | 2ft (0.6m) | 16s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 25°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||||
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) | ENE 7 | SW 17 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SW 16 | SW 17 | SW 17 | SSW 17 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SSW 16 | SW 16 | ENE 7 | E 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 130 | 148 | 207 | 207 | 207 | 195 | 179 | 234 | 278 | 295 | 295 | 255 | 240 | 261 | 322 | 322 | 322 | 326 | 261 | 261 | 223 | 251 | 261 | 233 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | on | on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross |
High Tide | 11:20AM0.53m | 12:20PM0.56m | 11:30PM0.20m | 1:07PM0.59m | ||||||||||||||||||||
Low Tide | 2:14AM0.09m | 3:21AM0.10m | 9:24PM0.19m | 4:39AM0.10m | 9:13PM0.18m | |||||||||||||||||||
 | |  | | | | | |  | | | | | | | | | | | | | | | | |
 | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:01 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 25 | 26 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 25 | 25 |
Feels °C | 27 | 26 | 27 | 28 | 29 | 28 | 27 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 28 | 27 | 28 | 28 | 28 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 16 | E 8 | E 8 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | SW 16 | SSW 16 | ENE 7 | SSW 16 | SSW 16 | SW 16 | SW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 |
| kJ | 130 | 80 | 82 | 61 | 65 | 79 | 138 | 142 | 111 | 111 | 73 | 52 | 52 | 261 | 322 | 83 | 322 | 326 | 261 | 261 | 223 | 251 | 215 | 215 |
Swell 2 Height (m) Direction Period (s) | S 12 | SW 17 | SSW 18 | E 8 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SW 16 | SW 17 | SW 17 | SSW 17 | SSW 16 | NE 7 | ENE 7 | SSW 16 | W 10 | W 10 | W 10 | W 12 | WNW 11 | WNW 11 | WNW 11 | S 14 |
| kJ | 44 | 148 | 207 | 60 | 207 | 195 | 179 | 234 | 278 | 295 | 295 | 255 | 240 | 37 | 57 | 322 | 50 | 52 | 74 | 101 | 97 | 91 | 93 | 107 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | S 12 | SE 9 | SSW 18 | E 8 | W 10 | W 10 | W 10 | WSW 9 | W 11 | NNE 7 | NNE 7 | NNE 7 | E 7 | NNE 7 | W 10 | SSE 14 | SE 8 | S 14 | S 14 | SSE 8 | SE 8 | S 15 | WNW 11 |
| kJ | 33 | 44 | 23 | 207 | 40 | 50 | 46 | 46 | 26 | 57 | 31 | 34 | 31 | 39 | 31 | 50 | 62 | 18 | 134 | 107 | 26 | 34 | 109 | 64 |
Wind waves Height (m) Direction Period (s) | ENE 7 | NE 6 | NE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 | E 7 |
| kJ | 125 | 47 | 55 | — | — | — | — | — | — | — | — | — | — | — | — | — | 99 | 121 | 117 | 117 | 133 | 201 | 261 | 233 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 15 | 10 | 10 | 12 | 12 | 12 | 16 | 0 | 0 | 10 | 12 | 16 | 33 | 32 | 14 | 10 | 10 | 16 | 16 | 31 | 31 | 31 | 16 | 16 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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