Surf Forecasts:
How big are the waves at Waimea Rivermouth today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 5.5ft (1.7m), 8s period with E swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 5ft (1.6m), 8s period with E swell.
- Evening surf: Evening surf (21 Sep, local time) - 4.5ft (1.4m), 8s period with E swell.
The current surf forecast for Waimea Rivermouth at 2AM is: 0.9m 15s primary swell from a South-southwest direction and 1.8m 7s secondary swell from a East direction (forecast issued at 07:00pm September 20). An open ocean swell of 0.8m 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 (21 Sep) | 5.5ft (1.7m) | 8s |
| Afternoon (21 Sep) | 5ft (1.6m) | 8s |
| Evening (21 Sep) | 4.5ft (1.4m) | 8s |
Table - waves today at Waimea Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Mon morning, min 24°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | |||||||||||||||||
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) | SSW 15 | S 15 | E 8 | SSW 15 | E 8 | E 8 | E 8 | E 8 | SSW 14 | E 8 | SSW 13 | E 8 | SSW 13 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 365 | 447 | 377 | 355 | 368 | 354 | 345 | 322 | 308 | 241 | 236 | 247 | 229 | 257 | 257 | 264 | 228 | 228 | 224 |
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 | glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | glassy | glassy | glassy | glassy | cross-off |
High Tide | 00:47AM0.20m | 1:13PM0.49m | 1:22AM0.24m | 1:46PM0.50m | |||||||||||||||
Low Tide | 8:25PM0.15m | 5:48AM0.12m | 8:30PM0.14m | 6:42AM0.10m | 8:39PM0.12m | ||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | 6:37 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:35 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 25 | 25 | 24 | 25 | 27 | 27 | 27 | 25 | 25 | 25 | 24 | 25 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 29 | 27 | 25 | 26 | 25 | 26 | 28 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 31 | 30 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | S 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 13 | SSW 13 | S 13 | S 13 | NNW 11 | NNW 11 | NNW 11 | NNW 11 |
| kJ | 365 | 447 | 365 | 355 | 346 | 336 | 336 | 322 | 308 | 239 | 236 | 222 | 229 | 168 | 168 | 133 | 126 | 123 | 119 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | NNE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | NNE 6 | ENE 6 | ENE 6 | NE 6 | NE 6 | NE 5 | N 12 | N 12 | NNW 12 | S 13 | S 13 | S 12 | S 12 |
| kJ | 28 | 26 | 53 | 53 | 41 | 40 | 24 | 37 | 27 | 16 | 16 | 14 | 112 | 141 | 145 | 166 | 156 | 146 | 104 |
Swell 3 Height (m) Direction Period (s) | SE 6 | SE 6 | N 10 | NNW 10 | N 10 | NNW 10 | SE 8 | NNW 10 | W 11 | SE 6 | N 14 | N 13 | NE 6 | NE 7 | NE 7 | NE 8 | ENE 6 | NE 8 | ENE 5 |
| kJ | 21 | 19 | 9 | 11 | 8 | 10 | 33 | 9 | 9 | 9 | 33 | 87 | 19 | 34 | 27 | 31 | 20 | 29 | 19 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | N 5 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 329 | 398 | 377 | 340 | 368 | 354 | 345 | 298 | 268 | 241 | 208 | 247 | 2 | 257 | 257 | 264 | 228 | 228 | 224 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 3 | 15 | 0 | 0 | 0 | 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 | |||||||||||||||||||
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