Surf Forecasts:
How big are the waves at Waimea Rivermouth today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 6ft (1.8m), 8s period with E swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3ft (0.9m), 15s period with SSW swell.
- Evening surf: Evening surf (20 Sep, local time) - 3ft (0.9m), 15s period with SSW swell.
The current surf forecast for Waimea Rivermouth at 2AM is: 1.8m 8s primary swell from a East direction and 0.8m 16s secondary swell from a South-southwest direction (forecast issued at 07:00pm September 19). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 6ft (1.8m) | 8s |
| Afternoon (20 Sep) | 3ft (0.9m) | 15s |
| Evening (20 Sep) | 3ft (0.9m) | 15s |
Table - waves today at Waimea Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | |||||||||||||||||
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) | E 8 | E 8 | SSW 16 | E 8 | E 8 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | E 8 | E 8 | E 8 | E 8 | SSW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 355 | 407 | 457 | 427 | 427 | 446 | 417 | 370 | 365 | 447 | 365 | 355 | 346 | 336 | 377 | 336 | 308 | 270 | 236 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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-off | cross-off | cross-off |
High Tide | 11:55PM0.17m | 12:34PM0.47m | 00:47AM0.20m | 1:13PM0.49m | |||||||||||||||
Low Tide | 8:30PM0.16m | 4:32AM0.13m | 8:25PM0.15m | 5:48AM0.12m | 8:30PM0.14m | ||||||||||||||
 |  | | | | | | |  | | | | | | | | |  | | |
 | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:36 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 27 | 26 | 26 | 25 | 25 | 25 | 27 | 27 | 27 | 25 | 25 |
Feels °C | 29 | 26 | 27 | 27 | 27 | 26 | 28 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 28 | 29 | 29 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | ENE 7 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
| kJ | 306 | 277 | 457 | 341 | 63 | 446 | 406 | 370 | 365 | 447 | 365 | 355 | 346 | 336 | 336 | 322 | 308 | 239 | 236 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | NNE 6 | NNE 6 | ENE 6 | SSW 16 | NNE 7 | SE 8 | SE 7 | SE 6 | SE 6 | SE 8 | NE 6 | E 6 | E 6 | NE 6 | NE 6 | E 6 | ENE 6 | NE 6 |
| kJ | 35 | 34 | 34 | 60 | 346 | 30 | 41 | 29 | 27 | 26 | 39 | 23 | 38 | 38 | 18 | 17 | 35 | 26 | 20 |
Swell 3 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SSW 13 | SSW 13 | SE 9 | NNE 7 | NNE 6 | NNE 6 | N 11 | N 10 | SE 7 | N 10 | NNW 10 | SE 8 | SE 8 | W 11 | W 13 | SE 6 |
| kJ | 31 | 30 | 11 | 68 | 102 | 46 | 30 | 28 | 28 | 9 | 9 | 24 | 8 | 10 | 29 | 28 | 9 | 13 | 5 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 6 | E 6 | NE 6 | NE 6 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 355 | 407 | 407 | 427 | 427 | 427 | 417 | 321 | 321 | 33 | 24 | 339 | 294 | 310 | 377 | 336 | 298 | 270 | 219 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 149 | 6 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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