Surf Forecasts:
How big are the waves at Ammonias today (13 Sep):
- Morning surf: Morning surf (13 Sep, local time) - 1.5ft (0.5m), 15s period with SW swell.
- Afternoon surf: Afternoon surf (13 Sep, local time) - 2.5ft (0.7m), 9s period with ENE swell.
- Evening surf: Evening surf (13 Sep, local time) - 1.5ft (0.4m), 14s period with SW swell.
The current surf forecast for Ammonias at 9AM is: 0.5m 15s primary swell from a Southwest direction and 0.5m 9s secondary swell from a East direction (forecast issued at 01:00am September 13). An open ocean swell of 1.0m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | 1.5ft (0.5m) | 15s |
| Afternoon (13 Sep) | 2.5ft (0.7m) | 9s |
| Evening (13 Sep) | 1.5ft (0.4m) | 14s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||||||||||
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 9 | SSW 15 | SW 15 | SSW 15 | ENE 9 | SSW 15 | SW 14 | SSW 12 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 22 | SW 22 | SW 22 | ENE 8 | SW 21 | SSW 21 | SW 20 | SW 20 | SW 20 | SW 19 | SW 19 | SSW 19 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 115 | 209 | 109 | 84 | 84 | 84 | 64 | 56 | 99 | 77 | 76 | 49 | 231 | 227 | 118 | 224 | 224 | 300 | 408 | 392 | 388 | 384 | 384 | 475 |
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 | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross |
High Tide | 5:11AM0.54m | 4:38PM0.41m | 5:56AM0.55m | 4:55PM0.35m | 6:45AM0.55m | 4:58PM0.30m | ||||||||||||||||||
Low Tide | 11:10AM0.18m | 10:50PM0.04m | 12:08PM0.22m | 11:14PM0.05m | 1:23PM0.26m | |||||||||||||||||||
 | |  | | | | | | |  |  | | | | | | | | | | | | | | |
 | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:39 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 25 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 27 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 9 | E 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | SW 22 | NE 8 | SSW 13 | SSW 21 | SW 21 | NE 8 | SW 20 | SW 20 | SW 20 | SW 19 | SW 19 | SSW 19 |
| kJ | 115 | 115 | 41 | 152 | 115 | 115 | 110 | 115 | 115 | 126 | 104 | 102 | 231 | 68 | 70 | 180 | 224 | 53 | 408 | 392 | 388 | 384 | 384 | 475 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 15 | SW 15 | E 9 | SSW 15 | SSW 15 | SW 14 | ENE 9 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 22 | SW 22 | SSW 13 | SW 13 | SSW 21 | NE 8 | NNE 8 | SW 12 | SW 12 | SW 12 | E 11 |
| kJ | 98 | 209 | 109 | 41 | 84 | 84 | 54 | 26 | 99 | 77 | 76 | 49 | 49 | 227 | 118 | 68 | 44 | 300 | 53 | 23 | 38 | 38 | 38 | 41 |
Swell 3 Height (m) Direction Period (s) | SW 16 | ENE 9 | SSW 12 | SSW 15 | SW 12 | SE 9 | SE 9 | SSW 12 | ENE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SW 13 | SW 13 | SW 12 | E 12 | E 12 | E 12 | SW 12 |
| kJ | 64 | 47 | 57 | 84 | 23 | 13 | 21 | 56 | 15 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 43 | 42 | 40 | 26 | 26 | 44 | 38 |
Wind waves Height (m) Direction Period (s) | ENE 9 | E 4 | NE 9 | — | ENE 9 | ENE 9 | ENE 9 | E 4 | E 4 | E 4 | E 4 | ENE 4 | NE 8 | ENE 5 | NE 8 | ENE 8 | ENE 8 | ENE 5 | ENE 5 | ENE 8 | NE 8 | NE 8 | ENE 8 | ENE 5 |
| kJ | 115 | 8 | 152 | — | 84 | 62 | 64 | 9 | 18 | 13 | 12 | 14 | 138 | 35 | 196 | 224 | 179 | 42 | 46 | 125 | 143 | 140 | 158 | 86 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 10 | 12 | 31 | 14 | 12 | 16 | 31 | 16 | 10 | 15 | 31 | 31 | 31 | 16 | 16 | 15 | 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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