Surf Forecasts:
How big are the waves at Ammonias today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 2.5ft (0.8m), 15s period with S swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 3ft (0.9m), 14s period with S swell.
- Evening surf: Evening surf (21 Jul, local time) - 3.5ft (1.0m), 14s period with S swell.
The current surf forecast for Ammonias at 11AM is: 0.8m 15s primary swell from a South direction and 0.4m 11s secondary swell from a South-southwest direction, 1.5m 7s secondary swell from a East-northeast direction (forecast issued at 07:00am July 21). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 2.5ft (0.8m) | 15s |
| Afternoon (21 Jul) | 3ft (0.9m) | 14s |
| Evening (21 Jul) | 3.5ft (1.0m) | 14s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Wed morning. Warm (max 25°C on Tue morning, min 23°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
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 | 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 | SSW 22 | SSW 21 | SSW 21 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | SSW 19 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 168 | 279 | 275 | 334 | 320 | 298 | 352 | 352 | 363 | 444 | 437 | 433 | 564 | 517 | 489 | 480 | 467 | 607 | 528 | 403 | 399 | 657 | 630 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross |
High Tide | 11:06AM0.46m | 12:06PM0.52m | 12:55PM0.57m | ||||||||||||||||||||
Low Tide | 2:52AM0.04m | 3:30AM0.04m | 4:16AM0.04m | ||||||||||||||||||||
 |  |  | | |  | | | | | | | |  | | | | |  | | | | | |
 | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:21 | — | — | — | — | — | — | — | 7:21 | — | — |
mm | 1 | 1 | — | 1 | 1 | — | 1 | 1 | 1 | 2 | 3 | 2 | 1 | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 24 | 24 | 25 | 25 | 25 | 24 | 24 |
Feels °C | 25 | 23 | 24 | 24 | 25 | 24 | 25 | 25 | 25 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 23 | 24 | 23 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 14 | S 14 | S 13 | SSW 23 | S 13 | S 13 | S 13 | S 13 | SSW 21 | SSW 20 | S 13 | S 13 | SSW 19 | SSW 19 |
| kJ | 163 | 279 | 275 | 334 | 320 | 298 | 352 | 352 | 363 | 316 | 315 | 281 | 564 | 276 | 215 | 212 | 209 | 607 | 528 | 215 | 219 | 657 | 630 |
Swell 2 Height (m) Direction Period (s) | S 13 | SSW 11 | SSW 11 | SW 16 | SW 16 | SW 16 | SSW 26 | SSW 26 | SSW 26 | SSW 24 | SSW 24 | SSW 24 | S 13 | SSW 22 | SSW 22 | SSW 22 | SSW 21 | S 13 | S 13 | SSW 20 | SSW 20 | SE 7 | SSE 8 |
| kJ | 82 | 47 | 50 | 69 | 65 | 61 | 224 | 224 | 217 | 444 | 437 | 433 | 173 | 517 | 489 | 480 | 467 | 209 | 209 | 403 | 399 | 44 | 39 |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SW 17 | SW 17 | E 15 | E 15 | E 11 | SW 15 | SW 15 | E 13 | E 13 | E 12 | E 12 | S 10 | E 12 | E 12 | E 12 | E 12 | SE 7 | E 12 | E 12 | E 12 | S 11 | S 11 |
| kJ | 49 | 71 | 72 | 18 | 38 | 23 | 60 | 60 | 55 | 83 | 73 | 105 | 76 | 100 | 100 | 103 | 103 | 26 | 103 | 101 | 98 | 82 | 56 |
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 6 | ENE 6 | ENE 6 | ENE 7 | E 7 | E 7 | ENE 7 | ENE 7 |
| kJ | 168 | 186 | 204 | 204 | 204 | 192 | 204 | 163 | 158 | 192 | 192 | 220 | 278 | 247 | 206 | 194 | 160 | 212 | 268 | 302 | 270 | 276 | 340 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 16 | 16 | 16 | 31 | 16 | 16 | 16 | 16 | 31 | 31 | 31 | 33 | 33 | 33 | 38 | 16 | 16 | 38 | 33 | 33 | 31 | 33 | 38 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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