Surf Forecasts:
How big are the waves at Waimea Rivermouth today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 5.5ft (1.7m), 8s period with E swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 7.5ft (2.3m), 9s period with E swell.
- Evening surf: Evening surf (15 Aug, local time) - 10ft (3.0m), 10s period with E swell.
The current surf forecast for Waimea Rivermouth at 9PM is: 3.0m 10s primary swell from a East direction and 0.7m 13s secondary swell from a South direction (forecast issued at 01:00pm August 15). An open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 5.5ft (1.7m) | 8s |
| Afternoon (15 Aug) | 7.5ft (2.3m) | 9s |
| Evening (15 Aug) | 10ft (3.0m) | 10s |
Table - waves today at Waimea Rivermouth. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 29mm), heaviest during Sun afternoon. Warm (max 28°C on Sat afternoon, min 24°C on Mon night). Winds decreasing (strong winds from the E on Sun morning, light winds from the E by Tue morning). | |||||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | |||||||||||||||||||
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) | S 13 | E 9 | S 13 | E 10 | E 10 | S 13 | ESE 11 | SE 11 | SE 11 | SE 11 | ESE 9 | ESE 9 | ESE 8 | SSE 8 | S 16 | E 8 | E 8 | E 7 | E 7 | E 7 | S 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 280 | 724 | 222 | 1437 | 1836 | 167 | 227 | 273 | 382 | 882 | 2296 | 1441 | 1003 | 183 | 306 | 295 | 318 | 348 | 295 | 229 | 257 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off |
High Tide | 5:39PM0.46m | 6:35AM0.39m | 6:00PM0.39m | 7:34AM0.41m | 6:14PM0.32m | ||||||||||||||||
Low Tide | 11:20AM0.12m | 00:12AM0.07m | 12:13PM0.19m | 00:37AM0.07m | 1:23PM0.25m | ||||||||||||||||
 |  | |  | |  |  |  |  | | |  |  | | | | | | | | | |
 | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | — | 7:08 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — |
mm | — | — | — | — | — | 1 | 1 | 3 | 5 | 12 | 5 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 25 | 26 | 25 | 26 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 25 | 25 |
Feels °C | 30 | 29 | 28 | 27 | 27 | 25 | 24 | 24 | 23 | 24 | 26 | 25 | 26 | 26 | 26 | 28 | 29 | 28 | 28 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | S 13 | NNE 7 | S 13 | NNE 6 | NNE 7 | ESE 11 | ESE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 9 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | S 14 |
| kJ | 280 | 56 | 222 | 85 | 93 | 166 | 227 | 273 | 382 | 882 | 597 | 380 | 254 | 183 | 125 | 118 | 86 | 82 | 79 | 41 | 257 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | S 13 | ESE 11 | S 13 | ESE 11 | S 13 | S 14 | S 13 | S 12 | S 16 | NNE 7 | NNE 7 | NE 8 | NE 7 | S 16 | S 14 | S 14 | S 14 | NE 7 | S 13 | SSE 6 |
| kJ | 51 | 222 | 65 | 168 | 138 | 167 | 180 | 115 | 110 | 185 | 64 | 59 | 69 | 65 | 306 | 202 | 202 | 148 | 37 | 116 | 30 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | ESE 12 | NNW 8 | ESE 11 | S 13 | WNW 12 | WNW 12 | S 18 | S 17 | SSW 12 | S 13 | S 13 | S 13 | S 13 | NNE 7 | NE 7 | NE 7 | NNE 6 | S 15 | NE 6 | WNW 11 |
| kJ | 30 | 54 | 11 | 66 | 168 | 49 | 49 | 150 | 145 | 49 | 155 | 160 | 162 | 167 | 30 | 43 | 39 | 26 | 150 | 26 | 23 |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 9 | NE 6 | E 10 | E 10 | NE 7 | NE 7 | NE 7 | NE 8 | ENE 8 | ESE 9 | ESE 9 | ESE 8 | E 3 | E 3 | E 8 | E 8 | E 7 | E 7 | E 7 | NE 7 |
| kJ | 766 | 724 | 80 | 1437 | 1836 | 109 | 139 | 194 | 251 | 213 | 2296 | 1441 | 1003 | 3 | 3 | 295 | 318 | 348 | 295 | 229 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 3 | 6 | 15 | 6 | 330 | 15 | 261 | 165 | 165 | 156 | 156 | 156 | 156 | 156 | 156 | 156 | 156 | 6 | 15 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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