Surf Forecasts:
Nanakuli Blackrocks surf forecast from 7 Jun 2026:
- Best quality surf: Saturday 13 Jun, 5PM (local time) - 3ft (0.9m), 21s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 14 Jun, 2AM (local time) - 3.5ft (1.1m), 20s period, SSW swell with 979 kJ wave energy.
- Next surfable swell (1★+): Sunday 7 Jun, 11PM (local time) - 2.5ft (0.8m), 20s period with S 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 (Jun 07) at 11PM. The primary swell is predicted to be 0.8m and 20s period with a secondary swell of 0.4m and 12s. 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 1.1m 20s and forecast to arrive on Sunday (Jun 14) 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 1.9m 8s period and expected on Sunday (Jun 07) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 7th Jun) | 2.5ft (0.8m) 20s |
| Best Surf | 5PM (Sat 13th Jun) | 3ft (0.9m) 21s |
| Most Powerful | 2AM (Sun 14th Jun) | 3.5ft (1.1m) 20s |
Table - best surf conditions forecast for Nanakuli Blackrocks over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 27°C on Mon afternoon, min 23°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 12 | S 21 | SSE 21 | S 19 | S 18 | S 18 | S 16 | S 16 | S 11 | SSE 15 | SSE 14 | SSE 14 | S 13 | S 18 | S 18 | S 16 | SW 20 | SW 19 | SSW 24 | SSW 22 | SSW 21 |
Wave Graph  | |||||||||||||||||||||
 kJ | 76 | 332 | 153 | 480 | 404 | 307 | 257 | 186 | 60 | 72 | 70 | 63 | 55 | 154 | 98 | 183 | 186 | 184 | 437 | 663 | 808 |
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 | glassy | off | off | cross-off | glassy |
High Tide | 8:09PM0.58m | 10:30AM0.31m | 8:49PM0.53m | 11:34AM0.40m | 9:33PM0.47m | 12:20PM0.50m | 10:26PM0.41m | 1:02PM0.60m | 11:25PM0.34m | 1:44PM0.70m | 00:27AM0.29m | 2:27PM0.77m | 1:27AM0.25m | 3:12PM0.83m | |||||||
Low Tide | 4:02AM0.13m | 1:47PM0.29m | 4:28AM0.11m | 4:00PM0.33m | 4:55AM0.08m | 6:07PM0.33m | 5:25AM0.05m | 7:46PM0.29m | 5:59AM0.02m | 8:59PM0.23m | 6:37AM-0.00m | 9:58PM0.19m | 7:19AM-0.03m | ||||||||
 |  | | | | | | |  | | | |  | | | | | | | | | |
 | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — |
 | 7:12 | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:15 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 26 | 24 | 26 | 27 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 26 |
Feels °C | 22 | 23 | 24 | 22 | 25 | 25 | 23 | 25 | 25 | 23 | 25 | 25 | 24 | 27 | 26 | 26 | 27 | 27 | 26 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 21 | S 20 | S 19 | S 18 | S 18 | S 16 | E 8 | E 8 | E 8 | SSE 14 | WNW 12 | ENE 8 | E 8 | E 8 | E 7 | ENE 7 | ENE 7 | S 15 | SSW 22 | SSW 21 |
| kJ | 76 | 332 | 122 | 480 | 404 | 307 | 257 | 118 | 118 | 137 | 70 | 53 | 94 | 90 | 90 | 70 | 57 | 55 | 205 | 663 | 808 |
Swell 2 Height (m) Direction Period (s) | N 10 | SSW 12 | SSE 21 | SSW 12 | S 13 | S 11 | S 12 | S 16 | SE 6 | SSE 15 | WNW 12 | SSE 14 | WNW 11 | S 18 | S 18 | S 16 | SW 20 | S 15 | ENE 7 | E 7 | ENE 7 |
| kJ | 29 | 47 | 153 | 46 | 88 | 39 | 71 | 186 | 18 | 72 | 56 | 63 | 47 | 154 | 98 | 183 | 186 | 153 | 41 | 36 | 37 |
Swell 3 Height (m) Direction Period (s) | N 6 | N 9 | SSW 12 | N 8 | WNW 16 | SSE 14 | WNW 15 | S 12 | S 11 | S 11 | SSE 6 | SE 6 | S 13 | WNW 11 | WNW 11 | S 12 | S 16 | SW 19 | SSW 24 | SSW 18 | SSW 18 |
| kJ | 11 | 14 | 46 | 6 | 100 | 19 | 84 | 68 | 60 | 37 | 13 | 8 | 55 | 45 | 37 | 46 | 80 | 184 | 437 | 211 | 209 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | ENE 8 | — | — | E 8 | E 8 | — | — | — | — | — | — | — | — | — |
| kJ | 241 | 413 | 253 | 191 | 163 | 163 | 203 | 128 | — | — | 118 | 115 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 151 | 7 | 13 | 0 | 0 | 8 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nanakuli Blackrocks 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.
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.
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