Surf Forecasts:
How big are the waves at Ammonias today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 5.5ft (1.7m), 7s period with E swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 6ft (1.9m), 7s period with ENE swell.
- Evening surf: Evening surf (31 Jul, local time) - 7ft (2.2m), 7s period with E swell.
The current surf forecast for Ammonias at 2AM is: 1.6m 6s primary swell from a East direction and 0.8m 13s secondary swell from a South direction, 0.6m 16s secondary swell from a South-southwest direction (forecast issued at 07:00pm July 30). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 5.5ft (1.7m) | 7s |
| Afternoon (31 Jul) | 6ft (1.9m) | 7s |
| Evening (31 Jul) | 7ft (2.2m) | 7s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Thu night. Warm (max 27°C on Fri afternoon, min 24°C on Sat night). Mainly fresh winds. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | |||||||||||||||||
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) | S 13 | ENE 7 | S 13 | S 13 | ENE 7 | E 7 | E 7 | ENE 7 | ENE 7 | E 7 | ENE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 276 | 280 | 233 | 213 | 239 | 269 | 311 | 346 | 435 | 452 | 579 | 736 | 868 | 816 | 825 | 902 | 857 | 889 | 952 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 4:44PM0.65m | 4:33AM0.29m | 5:08PM0.61m | 5:22AM0.32m | 5:32PM0.57m | ||||||||||||||
Low Tide | 11:32PM0.11m | 10:03AM0.04m | 11:56PM0.09m | 10:44AM0.09m | |||||||||||||||
 |  |  | | |  |  | | |  | | | | | | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 7:17 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — |
mm | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 24 | 24 |
Feels °C | 27 | 27 | 26 | 25 | 26 | 27 | 26 | 27 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | SW 15 | SW 15 | SW 15 | SSW 15 | E 15 | E 14 | E 15 | E 15 | E 15 | E 14 | E 14 |
| kJ | 276 | 215 | 212 | 206 | 196 | 190 | 146 | 144 | 232 | 226 | 223 | 144 | 150 | 148 | 205 | 205 | 150 | 146 | 199 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 17 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SW 16 | S 12 | E 16 | E 15 | E 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 152 | 150 | 137 | 175 | 208 | 171 | 169 | 196 | 141 | 231 | 163 | 159 | 142 | 134 | 123 | 123 | 123 | 123 | 125 |
Swell 3 Height (m) Direction Period (s) | N 9 | N 8 | E 18 | N 8 | E 16 | E 16 | E 16 | E 15 | E 15 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 |
| kJ | 6 | 13 | 56 | 18 | 81 | 130 | 174 | 110 | 167 | 103 | 101 | 70 | 70 | 66 | 39 | 39 | 38 | 21 | 21 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 6 | E 6 | ENE 7 | E 7 | E 7 | ENE 7 | ENE 7 | E 7 | ENE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 |
| kJ | 204 | 280 | 233 | 213 | 239 | 269 | 311 | 346 | 435 | 452 | 579 | 736 | 868 | 816 | 825 | 902 | 857 | 889 | 952 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 31 | 16 | 16 | 33 | 46 | 38 | 38 | 38 | 300 | 302 | 46 | 46 | 31 | 31 | 38 | 299 | 301 | 127 | 31 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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