Surf Forecasts:
How big are the waves at Ammonias today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 5.5ft (1.7m), 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 7AM is: 1.5m 7s primary swell from a East-northeast direction and 0.7m 14s secondary swell from a South-southwest direction (forecast issued at 01:00am July 18). An open ocean swell of 0.5m 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) | 5.5ft (1.7m) | 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 | ||||||||||||||||||||||
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 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 187 | 187 | 223 | 276 | 293 | 312 | 368 | 365 | 327 | 327 | 295 | 306 | 264 | 264 | 214 | 218 | 237 | 202 | 196 | 191 | 190 | 188 | 203 | 197 |
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-on | cross-on | 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 | 1:14AM0.06m | 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 | 25 | 25 | 25 | 26 | 26 | 26 | 24 | 24 | 24 | 23 | 24 | 25 | 26 | 25 | 24 | 24 | 23 | 23 | 24 | 25 | 26 | 26 | 24 | 24 |
Feels °C | 26 | 26 | 25 | 25 | 25 | 25 | 23 | 23 | 24 | 23 | 24 | 24 | 25 | 24 | 23 | 24 | 23 | 23 | 24 | 24 | 25 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | S 12 | S 13 | S 13 | SSW 11 | S 11 | SSW 11 | SSW 11 | SSW 11 | SSW 12 | S 16 | S 16 | S 12 | S 12 |
| kJ | 187 | 187 | 198 | 204 | 207 | 210 | 77 | 75 | 79 | 61 | 61 | 113 | 123 | 125 | 40 | 64 | 73 | 71 | 71 | 75 | 190 | 188 | 108 | 113 |
Swell 2 Height (m) Direction Period (s) | W 13 | SE 7 | W 13 | WNW 13 | SE 8 | SE 8 | S 14 | S 12 | S 12 | SSW 12 | SSW 12 | SSE 9 | SE 8 | SE 7 | SSE 18 | SSE 18 | S 18 | S 18 | S 17 | S 16 | SSW 11 | SSW 10 | S 16 | S 16 |
| kJ | 87 | 26 | 87 | 56 | 35 | 55 | 103 | 72 | 75 | 117 | 115 | 49 | 34 | 22 | 110 | 107 | 162 | 156 | 146 | 137 | 65 | 62 | 186 | 174 |
Swell 3 Height (m) Direction Period (s) | SE 7 | W 13 | SE 8 | SSW 8 | WNW 13 | WNW 13 | S 12 | SSW 14 | W 12 | W 12 | NNE 7 | W 12 | S 19 | S 19 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SW 18 | SE 8 | SE 7 | SW 17 | SW 16 |
| kJ | 26 | 87 | 14 | 11 | 56 | 56 | 72 | 67 | 26 | 25 | 20 | 25 | 65 | 113 | 14 | 11 | 14 | 10 | 9 | 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 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 180 | 180 | 223 | 276 | 293 | 312 | 368 | 365 | 327 | 327 | 295 | 306 | 264 | 264 | 214 | 218 | 237 | 202 | 196 | 191 | 161 | 181 | 203 | 197 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 33 | 31 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 31 | 16 | 15 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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