- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Inside Poipu surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 1 pm Thursday 21 May 2026 HSTForecast update in hr min s Forecast update imminent
Inside Poipu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Inside Poipu sea temperature is
25.3° C
(Which is normal for this time of year)How big are the waves at Inside Poipu today?
The current surf forecast for Inside Poipu at 4PM is: 2.3m 8s primary swell from a East direction and 0.5m 16s secondary swell from a South direction, 0.4m 13s secondary swell from a Southeast direction (forecast issued at 01:00pm May 21). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 8ft (2.4m) | 8s |
| Afternoon (21 May) | 7.5ft (2.3m) | 8s |
| Evening (21 May) | 8ft (2.5m) | 8s |
Table - waves today at Inside Poipu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Sat morning. Warm (max 25°C on Thu afternoon, min 22°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | |
809 | 762 | 772 | 899 | 899 | 951 | 973 | 899 | 822 | 755 | 772 | 755 | 754 | 721 | 721 | 660 | 660 | 801 | 838 | 773 | 754 | 719 | 618 | 678 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 8:16PM0.67m | 9:27AM0.27m | 9:10PM0.61m | 11:09AM0.35m | 10:01PM0.55m | |||||||||||||||||||
Low Tide | 12:11PM0.14m | 4:16AM0.16m | 1:26PM0.22m | 4:54AM0.14m | 3:15PM0.29m | 5:25AM0.12m | ||||||||||||||||||
 | |  |  | | | | | | | | | | | | |  |  | |  | | | |  | |
 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — |
 | — | — | 7:12 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | 7:13 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | 1 | — | 1 | |
Temp °C | 25 | 25 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 22 | 22 | 22 | 22 |
23 | 22 | 21 | 20 | 19 | 20 | 19 | 20 | 20 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 21 | 20 | 19 | 18 | 19 | 19 | |
Swell 1 Height (m) Direction Period (s) | S 16 | SSW 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | SSW 14 | S 14 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 |
 kJ | 134 | 87 | 129 | 115 | 157 | 157 | 110 | 155 | 109 | 103 | 62 | 93 | 147 | 132 | 129 | 127 | 125 | 125 | 161 | 153 | 155 | 109 | 103 | 140 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SSE 12 | SE 9 | SE 12 | S 18 | S 18 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 |
| kJ | 61 | 66 | 44 | 43 | 43 | 42 | 40 | 30 | 22 | 68 | 98 | 97 | 60 | 59 | 60 | 58 | 57 | 58 | 54 | 51 | 45 | 44 | 42 | 39 |
Swell 3 Height (m) Direction Period (s) | SE 14 | SE 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | S 12 | NNW 10 | S 18 | S 18 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 10 | SE 10 | SE 12 | SSE 12 | SSE 12 | SE 9 | SSE 9 |
| kJ | 47 | 45 | 28 | 14 | 14 | 14 | 12 | 9 | 57 | 99 | 37 | 37 | 37 | 37 | 36 | 36 | 35 | 26 | 15 | 35 | 14 | 13 | 13 | 8 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 809 | 762 | 772 | 899 | 899 | 951 | 973 | 899 | 822 | 755 | 772 | 755 | 754 | 721 | 721 | 660 | 660 | 801 | 838 | 773 | 754 | 719 | 618 | 678 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 31 | 307 | 436 | 430 | 307 | 22 | 22 | 22 | 22 | 25 | 22 | 22 | 25 | 31 | 31 | 22 | 31 | 22 | 22 | 22 | 22 | 31 | 22 | 22 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Inside Poipu surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest