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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 1 pm Saturday 29 Nov 2025 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
26.1° C
(Which is slightly warmer than usual)How big are the waves at Nanakuli Blackrocks today?
The current surf forecast for Nanakuli Blackrocks at 7PM is: 3.0m 18s primary swell from a Northwest direction (forecast issued at 01:00pm November 29). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 11.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Nov) | 3.5ft (1.0m) | 12s |
| Afternoon (29 Nov) | 6ft (1.8m) | 20s |
| Evening (29 Nov) | 10ft (3.0m) | 18s |
Table - waves today at Nanakuli Blackrocks. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 29 | Sunday 30 | Monday 01 | Tuesday 02 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 22 | 20 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 457 | 1857 | 4322 | 5191 | 5861 | 5861 | 5861 | 6328 | 5831 | 5053 | 4760 | 4427 | 4169 | 3678 | 3455 | 2945 | 2457 | 2263 | 1972 | 1728 | 1459 | 1065 | 990 | 961 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | on | glass | glass | glass | glass | glass | off | glass | cross | cross- off | glass | glass | glass | cross- off | glass | glass | glass | cross | glass | cross- off | glass | off | off |
High Tide / height (m) | 10:23AM 0.48 | 12:48AM 0.53 | 11:18AM 0.42 | 1:26AM 0.63 | 12:13PM 0.36 | 2:06AM 0.73 | ||||||||||||||||||
Low Tide / height (m) | 5:34PM 0.07 | 6:41AM 0.30 | 6:02PM 0.04 | 8:04AM 0.26 | 6:33PM 0.01 | |||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 01 | Tuesday 02 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:54 |
| Sunset | - | - | 5:49 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - |
 | | |  | | |  | |  | | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 25 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 |
| Feels °C (?) | 28 | 26 | 28 | 26 | 26 | 25 | 25 | 25 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 25 | 25 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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