Surf Forecasts:
How big are the waves at Ammonias today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 5ft (1.5m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 4.5ft (1.4m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Aug, local time) - 4.5ft (1.4m), 6s period with ENE swell.
The current surf forecast for Ammonias at 1AM is: 1.6m 7s primary swell from a East-northeast direction and 0.8m 14s secondary swell from a South direction, 0.4m 6s secondary swell from a South-southeast direction (forecast issued at 07:00pm August 17). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 5ft (1.5m) | 7s |
| Afternoon (18 Aug) | 4.5ft (1.4m) | 7s |
| Evening (18 Aug) | 4.5ft (1.4m) | 6s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 23°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||
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 | ENE 7 | S 14 | S 14 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | S 12 | ENE 7 | ENE 6 | ENE 6 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 314 | 268 | 320 | 232 | 219 | 187 | 165 | 165 | 165 | 149 | 134 | 117 | 107 | 111 | 78 | 99 | 103 | 103 | 129 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross | cross-on | cross | cross | cross | cross |
High Tide | 6:01PM0.36m | 8:46AM0.48m | 5:31PM0.30m | 10:06AM0.50m | |||||||||||||||
Low Tide | 00:55AM0.06m | 3:13PM0.30m | 1:28AM0.08m | ||||||||||||||||
 |  |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:05 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 26 | 26 | 24 | 24 |
Feels °C | 27 | 26 | 25 | 26 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 25 | 25 | 26 | 26 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | S 13 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | SSE 10 | NNE 7 | SSE 9 | SSE 9 | S 12 | SW 16 |
| kJ | 40 | 157 | 320 | 232 | 219 | 165 | 165 | 165 | 165 | 119 | 119 | 112 | 72 | 63 | 31 | 58 | 33 | 71 | 129 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 15 | SSE 6 | SSE 6 | SSE 5 | SE 11 | SE 10 | SSE 10 | SE 10 | SE 8 | SE 9 | SSE 10 | SSE 10 | S 12 | SSE 9 | S 12 | S 12 | SSE 9 | S 12 |
| kJ | 150 | 104 | 18 | 14 | 9 | 56 | 45 | 64 | 47 | 35 | 39 | 63 | 37 | 69 | 59 | 69 | 69 | 32 | 45 |
Swell 3 Height (m) Direction Period (s) | S 15 | SE 6 | SE 11 | SE 11 | SW 6 | SW 6 | SW 17 | SW 18 | SW 18 | SW 18 | WNW 12 | WNW 12 | SW 17 | SSW 16 | S 12 | SW 16 | SSW 16 | SSW 16 | SSE 9 |
| kJ | 150 | 16 | 41 | 41 | 13 | 13 | 76 | 79 | 80 | 80 | 28 | 28 | 75 | 102 | 69 | 65 | 103 | 103 | 33 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | E 6 | ENE 7 | ENE 6 | ENE 6 | ENE 6 |
| kJ | 314 | 268 | 254 | 225 | 198 | 187 | 158 | 158 | 137 | 149 | 134 | 117 | 107 | 111 | 78 | 99 | 93 | 93 | 96 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 126 | 16 | 16 | 16 | 38 | 33 | 31 | 31 | 31 | 16 | 16 | 16 | 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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