Surf Forecasts:
How big are the waves at Ammonias today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 5ft (1.5m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 6ft (1.8m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Jul, local time) - 6ft (1.8m), 8s period with ENE swell.
The current surf forecast for Ammonias at 12PM is: 1.7m 7s primary swell from a East-northeast direction and 0.7m 14s secondary swell from a South-southwest direction (forecast issued at 07:00am July 18). An open ocean swell of 0.4m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 5ft (1.5m) | 7s |
| Afternoon (18 Jul) | 6ft (1.8m) | 7s |
| Evening (18 Jul) | 6ft (1.8m) | 8s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
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 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 | S 16 | S 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 187 | 204 | 247 | 255 | 336 | 375 | 345 | 318 | 291 | 259 | 306 | 261 | 216 | 227 | 231 | 237 | 226 | 220 | 214 | 193 | 188 | 186 | 177 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 7:07AM0.31m | 6:48PM0.51m | 8:26AM0.35m | 7:13PM0.43m | 9:50AM0.41m | 7:25PM0.35m | |||||||||||||||||
Low Tide | 12:04PM0.14m | 1:46AM0.05m | 1:11PM0.23m | 2:18AM0.05m | 2:53PM0.29m | ||||||||||||||||||
 |  |  | | |  |  | | | | | | | | | | | | | | | | | |
 | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 26 | 26 | 26 | 24 | 24 | 24 | 23 | 24 | 25 | 26 | 26 | 24 | 24 | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 24 |
Feels °C | 25 | 25 | 26 | 25 | 25 | 23 | 24 | 23 | 22 | 24 | 24 | 25 | 25 | 23 | 24 | 23 | 23 | 23 | 24 | 25 | 24 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | S 12 | S 13 | S 13 | SSW 11 | S 11 | S 11 | SSW 11 | SSW 11 | SSW 12 | S 16 | S 16 | S 12 | S 12 |
| kJ | 187 | 198 | 204 | 207 | 210 | 61 | 57 | 59 | 61 | 59 | 113 | 123 | 125 | 40 | 64 | 65 | 71 | 71 | 75 | 190 | 188 | 108 | 113 |
Swell 2 Height (m) Direction Period (s) | SE 7 | W 13 | WNW 13 | SE 8 | SE 8 | S 14 | S 12 | S 12 | SSW 12 | SSW 12 | SSE 8 | SE 8 | SE 7 | SE 7 | SE 6 | S 18 | S 18 | S 17 | S 16 | SSW 11 | SSW 10 | S 16 | S 16 |
| kJ | 26 | 87 | 56 | 35 | 54 | 103 | 72 | 75 | 117 | 115 | 45 | 32 | 12 | 14 | 21 | 162 | 156 | 146 | 137 | 65 | 62 | 186 | 174 |
Swell 3 Height (m) Direction Period (s) | W 13 | SE 8 | SSW 8 | WNW 13 | WNW 13 | S 12 | SSW 14 | WNW 12 | W 12 | NNE 8 | W 12 | S 19 | S 19 | SSE 18 | SSE 18 | SE 6 | SE 6 | SW 18 | SW 18 | SE 8 | SE 7 | SW 17 | SW 16 |
| kJ | 87 | 14 | 11 | 56 | 56 | 72 | 67 | 29 | 25 | 23 | 25 | 65 | 113 | 110 | 107 | 19 | 9 | 84 | 82 | 18 | 12 | 76 | 69 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 158 | 204 | 247 | 255 | 336 | 375 | 345 | 318 | 291 | 259 | 306 | 261 | 216 | 227 | 231 | 237 | 226 | 220 | 214 | 193 | 181 | 181 | 177 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 16 | 33 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 31 | 16 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 16 | 16 | 16 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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