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Waimanalo Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waimanalo surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Saturday 18 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Waimanalo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanalo sea temperature is
24.5° C
(Which is normal for this time of year)How big are the waves at Waimanalo today?
The current surf forecast for Waimanalo at 3PM is: 1.1m 6s primary swell from a East direction and 0.4m 8s secondary swell from a East-southeast direction (forecast issued at 07:00am April 18). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 4ft (1.2m) | 5s |
| Afternoon (18 Apr) | 3.5ft (1.1m) | 6s |
| Evening (18 Apr) | 4ft (1.2m) | 6s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| 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 | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 13 | 12 | 12 | 12 | 6 | 6 | 11 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 35 | 57 | 100 | 80 | 113 | 132 | 94 | 75 | 55 | 57 | 59 | 53 | 43 | 44 | 46 | 42 | 53 | 57 | 41 | 48 | 56 | 56 | 42 | 47 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass |
High Tide / height (m) | 2:11AM 0.37 | 4:15PM 0.64 | 2:32AM 0.33 | 5:08PM 0.63 | 2:45AM 0.29 | 6:08PM 0.60 | ||||||||||||||||||
Low Tide / height (m) | 8:48AM -0.16 | 10:25PM 0.18 | 9:22AM -0.16 | 11:35PM 0.21 | 10:01AM -0.14 | |||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| Sunrise | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - |
 |  |  |  | | |  | | | | | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 23 |
| Feels °C (?) | 22 | 22 | 22 | 26 | 25 | 23 | 23 | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 26 | 26 | 26 |
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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 Waimanalo 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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