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Nanakuli Blackrocks Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Nanakuli Blackrocks surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Wednesday 04 Mar 2026 HSTForecast update in hr min s Forecast update imminent
Nanakuli Blackrocks surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nanakuli Blackrocks sea temperature is
24.4° C
(Which is normal for this time of year)How big are the waves at Nanakuli Blackrocks today?
The current surf forecast for Nanakuli Blackrocks at 3PM is: 0.6m 11s primary swell from a Northwest direction (forecast issued at 07:00am March 04). An open ocean swell of 1.3m 8s is not directed at the surf break, a second open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Mar) | 2.5ft (0.8m) | 11s |
| Afternoon (04 Mar) | 2ft (0.6m) | 11s |
| Evening (04 Mar) | 2.5ft (0.8m) | 9s |
Table - waves today at Nanakuli Blackrocks. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 04 | Thursday 05 | Friday 06 | Sat 07 | |||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 11 | 11 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 171 | 142 | 114 | 112 | 90 | 108 | 130 | 106 | 103 | 94 | 133 | 172 | 154 | 108 | 68 | 72 | 87 | 84 | 113 | 113 | 114 | 114 | 106 | 99 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | off | off | cross- off | glass | cross- off | off | glass | cross- on | cross | cross- off | off | off | off | cross- off | cross- off | cross | cross- off | off | off | off |
High Tide / height (m) | 4:19AM 0.59 | 4:52PM 0.51 | 4:43AM 0.53 | 5:30PM 0.54 | 5:05AM 0.46 | 6:10PM 0.56 | ||||||||||||||||||
Low Tide / height (m) | 10:44AM 0.09 | 10:44PM 0.16 | 11:02AM 0.09 | 11:32PM 0.20 | 11:20AM 0.09 | 12:25AM 0.24 | ||||||||||||||||||
Wednesday 04 | Thursday 05 | Friday 06 | Sat 07 | |||||||||||||||||||||
| Sunrise | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - |
 |  | |  | |  | | | | | | | | | |  | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - |
| Temp. °C | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 22 |
| Feels °C (?) | 22 | 22 | 24 | 25 | 23 | 23 | 24 | 26 | 25 | 25 | 28 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 26 | 26 | 24 | 23 | 22 | 22 |
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Live Wave Height (m)
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Ocean Swells (m)- Wind Speed (km/h)
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