
Surf Forecasts:
Nanakuli Blackrocks surf forecast from 3 Nov 2026:
- Best quality surf: Tuesday 17 Nov, 11PM (local time) - 10ft (3.0m), 17s period, NNW swell with offshore winds.
- Most powerful swell: Wednesday 18 Nov, 2AM (local time) - 11ft (3.5m), 17s period, NNW swell with 6,551 kJ wave energy.
- Next surfable swell (1★+): Sunday 8 Nov, 5AM (local time) - 6ft (1.9m), 12s period with NNW swell.
Best Forecast Surf Conditions for Nanakuli Blackrocks this week:
The surf forecast for Nanakuli Blackrocks over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 08) at 5AM. The primary swell is predicted to be 1.9m and 12s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nanakuli Blackrocks in the next 16 days are 3.5m 17s and forecast to arrive on Wednesday (Nov 18) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Thursday (Nov 05) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 8th Nov) | 6ft (1.9m) 12s |
| Best Surf | 11PM (Tue 17th Nov) | 10ft (3.0m) 17s |
| Most Powerful | 2AM (Wed 18th Nov) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Nanakuli Blackrocks over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Tue morning, min 24°C on Tue morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Fri morning, min 23°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 3 | Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NNW 22 | NNW 19 | NNW 17 | NNW 16 | NNW 15 | NNW 14 | NNW 14 | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 16 | NNW 15 |
Wave Graph | |||||||||||||||||||||
1057 | 934 | 387 | 283 | 265 | 2647 | 3161 | 2663 | 1508 | 1126 | 908 | 745 | 620 | 525 | 1143 | 861 | 677 | 593 | 291 | 917 | 2526 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 11:25AM0.55m | 1:05AM0.45m | 12:12PM0.50m | 1:42AM0.54m | 12:54PM0.45m | 2:15AM0.61m | 1:32PM0.40m | 2:47AM0.67m | 2:08PM0.35m | 3:19AM0.71m | 2:42PM0.31m | 3:51AM0.73m | 3:14PM0.28m | 4:25AM0.72m | |||||||
Low Tide | 6:32PM0.09m | 6:26AM0.25m | 6:55PM0.07m | 7:38AM0.24m | 7:16PM0.06m | 8:38AM0.22m | 7:38PM0.05m | 9:31AM0.20m | 8:00PM0.04m | 10:19AM0.18m | 8:23PM0.04m | 11:05AM0.17m | 8:48PM0.04m | ||||||||
6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | |
— | 5:54 | — | — | 5:53 | — | — | 5:53 | — | — | 5:53 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 24 | 25 | 26 | 25 | 25 | 26 | 24 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 25 | 24 | 26 | 26 | 24 |
Feels °C | 24 | 22 | 23 | 22 | 23 | 24 | 23 | 23 | 22 | 24 | 24 | 23 | 22 | 23 | 23 | 24 | 22 | 22 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | NNW 13 | NNW 12 | NNW 12 | NNW 12 | N 11 | NNW 19 | NNW 17 | NNW 16 | NNW 15 | NNW 14 | NNW 14 | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | NNW 15 |
1057 | 934 | 387 | 283 | 307 | 2647 | 3161 | 2663 | 1508 | 1126 | 908 | 745 | 620 | 525 | 1143 | 861 | 677 | 593 | 291 | 400 | 2526 | |
Swell 2 Height (m) Direction Period (s) | S 11 | SE 8 | NNE 8 | NNW 15 | NNW 14 | NNW 12 | NNW 11 | SSW 16 | SSW 16 | SSW 15 | SW 15 | SSW 15 | N 6 | NNW 16 | E 8 | S 12 | S 12 | S 11 | N 7 | NNW 16 | S 13 |
40 | 11 | 110 | 148 | 129 | 298 | 103 | 223 | 215 | 199 | 104 | 73 | 33 | 288 | 193 | 78 | 75 | 65 | 85 | 917 | 55 | |
Swell 3 Height (m) Direction Period (s) | SSW 14 | S 11 | SE 8 | SSW 18 | NNW 22 | SSW 17 | SSW 16 | WNW 16 | W 15 | W 14 | SSW 15 | SW 14 | SSW 14 | E 9 | S 13 | S 18 | SE 8 | S 16 | N 18 | NNW 19 | SSW 18 |
19 | 22 | 18 | 123 | 265 | 264 | 226 | 50 | 17 | 16 | 74 | 51 | 105 | 44 | 86 | 6 | 18 | 20 | 160 | 246 | 61 | |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | ENE 7 | E 7 | E 7 | E 7 | E 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | — | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 |
119 | 120 | 113 | 335 | 264 | 230 | 585 | 494 | 373 | 485 | 500 | 579 | 428 | 310 | — | 213 | 131 | 205 | 186 | 200 | 199 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 159 | 17 | 159 | 7 | 0 | 10 | 10 | 0 | 15 | 169 | 169 | 159 | 159 | 0 | 15 | 159 | 15 | 13 | 7 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Nanakuli Blackrocks Surf forecast
The above surf forecast table for Nanakuli Blackrocks provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nanakuli Blackrocks can be found by selecting the local surf guide option on the grey menu. Our Nanakuli Blackrocks surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nanakuli Blackrocks) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Nanakuli Blackrocks may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Nanakuli Blackrocks is 6 km (4 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.










