Surf Forecasts:
How big are the waves at Inside Poipu today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 4.5ft (1.3m), 7s period with E swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 4ft (1.2m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Aug, local time) - 4ft (1.2m), 7s period with E swell.
The current surf forecast for Inside Poipu at 5AM is: 1.4m 7s primary swell from a East direction and 0.7m 13s secondary swell from a South direction, 0.4m 11s secondary swell from a Southeast direction (forecast issued at 01:00am August 18). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 4.5ft (1.3m) | 7s |
| Afternoon (18 Aug) | 4ft (1.2m) | 7s |
| Evening (18 Aug) | 4ft (1.2m) | 7s |
Table - waves today at Inside Poipu. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||||
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 | 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 14 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | ENE 8 | SW 16 | SW 17 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 208 | 187 | 171 | 165 | 139 | 143 | 134 | 126 | 108 | 113 | 100 | 103 | 97 | 97 | 134 | 109 | 132 | 148 | 207 | 209 | 207 | 195 | 179 | 177 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-off |
High Tide | 8:21AM0.53m | 5:45PM0.38m | 9:43AM0.54m | 11:10AM0.56m | ||||||||||||||||||||
Low Tide | 00:45AM0.12m | 2:44PM0.36m | 1:15AM0.13m | 1:58AM0.15m | ||||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | |  | | | |  | |
 | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:04 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 24 | 26 | 26 | 26 | 24 | 24 | 24 | 24 | 24 | 26 | 27 | 26 | 24 | 24 | 24 | 24 | 24 | 27 | 28 | 27 | 26 | 25 |
Feels °C | 24 | 24 | 24 | 26 | 25 | 26 | 24 | 24 | 24 | 25 | 24 | 26 | 27 | 26 | 24 | 25 | 26 | 25 | 25 | 27 | 29 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | SSE 10 | S 12 | S 12 | SE 10 | SE 10 | SSE 9 | S 12 | SW 16 | SW 17 | SSW 18 | SSW 18 | SSW 18 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 178 | 167 | 165 | 165 | 121 | 121 | 119 | 119 | 78 | 63 | 44 | 44 | 46 | 45 | 33 | 45 | 132 | 148 | 207 | 209 | 207 | 57 | 57 | 78 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | SE 11 | SW 6 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 12 | SSE 10 | SSW 16 | S 12 | S 12 | S 12 | SSW 16 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SE 10 | SSW 17 | SSW 16 | SSW 16 |
| kJ | 18 | 40 | 18 | 67 | 46 | 47 | 47 | 45 | 46 | 72 | 37 | 103 | 44 | 44 | 45 | 103 | 33 | 33 | 32 | 35 | 23 | 195 | 179 | 177 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SW 6 | SE 11 | SW 6 | SW 6 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SW 16 | SSE 10 | SW 16 | SW 16 | SW 16 | SSE 9 | S 12 | S 12 | S 11 | S 11 | S 11 | SE 10 | SSE 9 | SE 9 |
| kJ | 40 | 10 | 40 | 14 | 10 | 50 | 48 | 48 | 48 | 47 | 66 | 37 | 65 | 67 | 67 | 32 | 44 | 44 | 41 | 23 | 23 | 23 | 34 | 21 |
Wind waves Height (m) Direction Period (s) | ENE 7 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | — |
| kJ | 208 | 187 | 171 | 161 | 139 | 143 | 134 | 126 | 108 | 113 | 100 | 97 | 97 | 97 | 134 | 109 | 109 | 107 | 104 | 73 | 73 | 43 | 35 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 5 | 31 | 25 | 22 | 22 | 22 | 5 | 5 | 5 | 5 | 5 | 22 | 22 | 22 | 5 | 5 | 5 | 5 | 5 | 22 | 22 | 1 | 1 | 0 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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