Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Inside Poipu surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 1 am Sunday 21 Dec 2025 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)Nearby Cam: 4km away, Lawai Beach Resort - Live Cam
How big are the waves at Inside Poipu today?
The current surf forecast for Inside Poipu at 7AM is: 0.4m 7s primary swell from a South-southeast direction and 0.2m 2s secondary swell from a East-northeast direction (forecast issued at 01:00am December 21). An open ocean swell of 0.5m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Dec) | 1.5ft (0.4m) | 7s |
| Afternoon (21 Dec) | 2.5ft (0.7m) | 8s |
| Evening (21 Dec) | 1.5ft (0.5m) | 9s |
Table - waves today at Inside Poipu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||||||||||||
| 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 | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 14 | 18 | 17 | 16 | 16 | 16 | 8 | 8 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 25 | 24 | 25 | 20 | 49 | 66 | 39 | 37 | 36 | 79 | 75 | 68 | 66 | 66 | 82 | 95 | 98 | 199 | 292 | 365 | 320 | 258 | 265 | 408 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:50AM 0.75 | 3:57PM 0.27 | 5:23AM 0.74 | 4:40PM 0.27 | 5:56AM 0.72 | 5:35PM 0.27 | ||||||||||||||||||
Low Tide / height (m) | 9:05PM 0.02 | 12:15PM 0.20 | 9:38PM 0.04 | 12:50PM 0.20 | 10:12PM 0.07 | 1:24PM 0.19 | ||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:59 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - |
 |  | |  | | | |  | | | | | |  | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | 1 | 1 | - | - | - | - | - | - | 1 | 1 | 1 | - | - | - | - | - |
| Temp. °C | 24 | 24 | 23 | 23 | 25 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 |
| Feels °C (?) | 27 | 27 | 25 | 24 | 26 | 26 | 25 | 25 | 23 | 24 | 24 | 25 | 26 | 26 | 26 | 23 | 22 | 22 | 22 | 21 | 21 | 23 | 23 | 22 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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.
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