Surf Forecasts:
How big are the waves at Ammonias today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 4.5ft (1.4m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 5ft (1.5m), 7s period with ENE swell.
- Evening surf: Evening surf (20 Jul, local time) - 4.5ft (1.4m), 7s period with ENE swell.
The current surf forecast for Ammonias at 11AM is: 1.4m 7s primary swell from a East-northeast direction and 0.6m 12s secondary swell from a South-southwest direction, 0.5m 16s secondary swell from a South direction (forecast issued at 07:00am July 20). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 4.5ft (1.4m) | 7s |
| Afternoon (20 Jul) | 5ft (1.5m) | 7s |
| Evening (20 Jul) | 4.5ft (1.4m) | 7s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 17mm), heaviest on Tue night. Warm (max 26°C on Mon morning, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||||||
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 | S 16 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | SSW 24 | SSW 24 | SSW 24 | SSW 23 | SSW 22 | SSW 22 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 214 | 220 | 220 | 257 | 234 | 202 | 208 | 178 | 173 | 279 | 275 | 334 | 320 | 298 | 352 | 352 | 363 | 444 | 437 | 433 | 564 | 517 | 489 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross |
High Tide | 9:50AM0.41m | 7:25PM0.35m | 11:06AM0.46m | 12:06PM0.52m | |||||||||||||||||||
Low Tide | 2:18AM0.05m | 2:53PM0.29m | 2:52AM0.04m | 3:30AM0.04m | |||||||||||||||||||
 |  |  |  | |  | | | | | | | |  | | |  | | | | | | | |
 | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:21 | — | — |
mm | — | 1 | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 2 | — | — | — | — |
Temp °C | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 |
Feels °C | 24 | 25 | 25 | 24 | 25 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SSW 12 | S 16 | S 16 | S 16 | S 12 | S 12 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 |
| kJ | 71 | 71 | 104 | 257 | 188 | 186 | 112 | 110 | 163 | 279 | 275 | 334 | 320 | 298 | 352 | 352 | 363 | 316 | 311 | 281 | 280 | 276 | 272 |
Swell 2 Height (m) Direction Period (s) | S 18 | S 17 | S 16 | SSW 11 | SSW 11 | SSW 10 | S 16 | S 15 | S 13 | SSW 11 | SSW 11 | SW 16 | SW 16 | SW 16 | SSW 26 | SSW 26 | SSW 26 | SSW 24 | SSW 24 | SSW 24 | SSW 23 | SSW 22 | SSW 22 |
| kJ | 156 | 146 | 137 | 65 | 64 | 59 | 174 | 163 | 82 | 48 | 50 | 69 | 65 | 61 | 224 | 224 | 217 | 444 | 437 | 433 | 564 | 517 | 489 |
Swell 3 Height (m) Direction Period (s) | SE 6 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SSW 11 | SW 17 | SW 17 | E 15 | E 15 | E 11 | SW 15 | SW 15 | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 |
| kJ | 9 | 84 | 82 | 81 | 80 | 76 | 69 | 69 | 48 | 71 | 72 | 18 | 38 | 23 | 60 | 60 | 55 | 83 | 73 | 105 | 103 | 100 | 100 |
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 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 |
| kJ | 214 | 220 | 220 | 220 | 234 | 202 | 208 | 178 | 173 | 168 | 176 | 176 | 180 | 198 | 195 | 200 | 210 | 240 | 247 | 212 | 181 | 166 | 167 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 16 | 16 | 16 | 31 | 16 | 16 | 16 | 16 | 14 | 16 | 31 | 31 | 31 | 16 | 16 | 16 | 33 | 38 | 46 | 38 | 38 | 31 | 16 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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