Surf Forecasts:
Nimitz Beach surf forecast from 19 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 5AM (local time) - 2.5ft (0.7m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 8AM (local time) - 6.5ft (2.0m), 8s period, E swell with 446 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 5AM (local time) - 2.5ft (0.7m), 12s period with S swell.
Best Forecast Surf Conditions for Nimitz Beach this week:
The surf forecast for Nimitz Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 5AM. The primary swell is predicted to be 0.7m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nimitz Beach in the next 16 days are 2.0m 8s and forecast to arrive on Monday (Aug 24) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Saturday (Aug 22) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 19th Aug) | 2.5ft (0.7m) 12s |
| Best Surf | 5AM (Wed 19th Aug) | 2.5ft (0.7m) 12s |
| Most Powerful | 8AM (Mon 24th Aug) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Nimitz Beach over the next 16 days.
The Lowdown
Hey, Rusty here, checking in on Nimitz Beach for the next couple of weeks. This is a shallow reef break exposed to the south, so it needs the right swell. For the first week and a half, it’s mostly flat or junk – small, weak surf with a lot of windy days. Water temp is just average for this time of year, nothing unusual.
The one real highlight is Thursday morning, August 20. The wind goes glassy, dead calm, with a clean 2ft swell from the southwest and a super long period of 18 seconds. That’s proper groundswell, and on a reef, that long period will give you some nice shaped waves, though expect long waits between sets. The combined energy is moderate (406), but those glassy conditions make it the best session of the whole stretch. No crowds mentioned, so you should have it to yourself.
After that, it’s a long run of poor surf through the rest of August. From August 23 to 31, there’s a bunch of short-period east swell, 5ft to 6ft, but with periods of only 7 to 9 seconds – that’s messy windswell. The wind is either blowing 30 to 50 km/h cross-off or creating lumpy chop. Not worth it.
Then, look at Tuesday September 1 and Wednesday September 2 – but this is far out, so don’t book your flights yet. A solid 7ft to 8ft east swell rolls in with a 13-second period, which is proper groundswell energy. Combined energy numbers over 2000 (2097 to 2393) mean it’s powerful. But over 8ft, it’s only for experts, and the wind is still strong cross-off at 35-40 km/h. The swell direction is east, not the ideal south, so the reef could get shifty and hard to ride.
After that, it drops back to small and windy. Your best bet is that Thursday morning, August 20. For the big stuff in early September, keep it on the radar if you’re an experienced surfer, but don’t get your hopes up yet.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 28°C on Sat afternoon, min 25°C on Fri night). Winds increasing (light winds from the ESE on Fri night, near gales from the ENE by Mon morning). | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | S 13 | SW 16 | SW 16 | SSW 16 | SW 18 | SW 17 | SSW 16 | SSW 17 | SSW 16 | SW 16 | SSW 16 | SSW 16 | E 7 | E 7 | E 7 | E 7 | E 7 | E 9 | E 8 |
Wave Graph | |||||||||||||||||||
114 | 129 | 125 | 175 | 316 | 305 | 347 | 364 | 326 | 367 | 326 | 314 | 339 | 254 | 274 | 324 | 315 | 430 | 408 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | glassy | cross | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 9:42AM0.56m | 11:04AM0.57m | 12:12PM0.60m | 11:03PM0.23m | 1:02PM0.64m | 00:38AM0.25m | 1:42PM0.67m | 1:26AM0.28m | 2:15PM0.70m | 2:05AM0.31m | |||||||||
Low Tide | 1:23AM0.13m | 2:04AM0.14m | 3:11AM0.15m | 9:15PM0.23m | 9:01PM0.20m | 5:49AM0.13m | 9:11PM0.18m | 6:44AM0.10m | 9:26PM0.16m | ||||||||||
— | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | |
7:00 | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 9 |
Temp °C | 25 | 26 | 27 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 26 | 27 | 28 | 26 | 27 | 27 | 26 |
Feels °C | 24 | 27 | 28 | 28 | 29 | 30 | 30 | 29 | 29 | 30 | 25 | 24 | 25 | 25 | 25 | 24 | 22 | 23 | 27 |
Swell 1 Height (m) Direction Period (s) | S 13 | E 8 | E 8 | E 8 | E 8 | SW 17 | SSW 16 | SSW 17 | SSW 16 | SW 16 | ENE 7 | SSW 16 | SW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
114 | 88 | 86 | 82 | 55 | 305 | 347 | 364 | 326 | 367 | 60 | 314 | 245 | 201 | 191 | 186 | 166 | 156 | 127 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 16 | S 12 | SSW 16 | SW 18 | E 7 | ENE 7 | ENE 7 | W 11 | ENE 7 | SSW 16 | WNW 11 | WNW 12 | S 13 | WNW 11 | E 11 | E 10 | NW 11 | SSE 9 |
79 | 129 | 71 | 175 | 316 | 40 | 57 | 40 | 82 | 52 | 326 | 91 | 106 | 128 | 47 | 63 | 74 | 30 | 29 | |
Swell 3 Height (m) Direction Period (s) | WNW 12 | S 12 | SW 16 | S 12 | W 11 | S 11 | W 9 | W 11 | ENE 7 | W 10 | W 10 | SSE 12 | S 14 | WNW 11 | SSE 11 | SSE 13 | SSE 14 | SSE 13 | SSW 17 |
48 | 69 | 125 | 45 | 35 | 21 | 27 | 79 | 40 | 73 | 74 | 50 | 106 | 65 | 41 | 98 | 74 | 31 | 93 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | NNE 6 | NE 6 | — | — | — | — | — | ENE 7 | — | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 9 | E 8 |
109 | 54 | 26 | 39 | — | — | — | — | — | 105 | — | 121 | 339 | 254 | 274 | 324 | 315 | 430 | 408 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 7 | 3 | 7 | 3 | 3 | 3 | 3 | 10 | 7 | 3 | 8 | 17 | 9 | 18 | 177 | 177 | 177 | 27 | 17 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Nimitz Beach Surf forecast
The above surf forecast table for Nimitz Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nimitz Beach can be found by selecting the local surf guide option on the grey menu. Our Nimitz Beach 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 (Nimitz Beach) 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 Nimitz Beach 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.
Nimitz Beach is 5 km (3 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.











