
Surf Forecasts:
Nimitz Beach surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 5AM (local time) - 2.5ft (0.7m), 21s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 2AM (local time) - 4ft (1.2m), 18s period, SSW swell with 826 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 2.5ft (0.7m), 21s period with SW 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 Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 0.7m and 21s period with a secondary swell of 0.4m and 13s. 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 1.2m 18s and forecast to arrive on Friday (Sep 18) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 10s period and expected on Thursday (Sep 17) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 15th Sep) | 2.5ft (0.7m) 21s |
| Best Surf | 5AM (Tue 15th Sep) | 2.5ft (0.7m) 21s |
| Most Powerful | 2AM (Fri 18th Sep) | 4ft (1.2m) 18s |
Table - best surf conditions forecast for Nimitz Beach over the next 16 days.
The Lowdown
Alright, let me tell you straight up. The next couple of weeks around here are gonna be a real grind. We’re looking at a whole bunch of days where the waves are just too weak and jumbled to really get you excited. You’ll be scratching for anything rideable, and honestly, most of the time you’re gonna be better off doing something else.
For the first week and a half, from Tuesday the 15th right through to Monday the 21st, it’s pretty much the same story. Swell is hanging in that 3ft to 4ft range, coming from the SSW or SW, with a decent period of 15-20 seconds. That long period is good for shape, but the size just isn’t there to push things over the edge. The winds are mostly cross-offshore, which keeps the surface clean, but it’s not enough to make these tiny waves feel fun. We’re in the moderate energy zone for most of this stretch – the combined energy sits between 524 and 1043, which is just nothing special. Now, there’s a slight bump in energy on the 18th, hitting 1043, but the swell is still under 4ft, so don’t get your hopes up. It’s all rating as marginal, and the crowds might be out because it’s just so small, but it’s not worth fighting for.
Then things get weird. On Tuesday the 22nd, the swell direction completely swings around to the east, and the period drops off a cliff to a short 8-9 seconds. That’s junk. The height bumps up a bit – 5ft in the morning, 6ft in the afternoon – but it’s not the kind of swell we want. It’s all cross-offshore wind, so it’s clean looking, but the actual surf quality is just poor. This is over 5ft, so it’s already too much for beginners, and with that short, weak period, it’s just a messy, powerless wall. The energy is all over the place, but the wave comment says “poor surf conditions.” I’d give that a miss.
Wednesday the 23rd is a bit more of the same – still east in direction, with the period slowly crawling back up to 10 seconds. The swell is up to 6ft in the morning and 6ft in the afternoon, which is solidly in the “expert only” territory for most folks. And while the energy numbers climb up there with the 1222 reading in the afternoon, the quality is still questionable. It’s a bit raw and unrefined, not the kind of clean lines you want.
After that, the swell starts fading back down. From Thursday the 24th through to the end of the month, we’re back to the small stuff, 3ft to 4ft, mostly from the SSW again. The winds stay cross-offshore, so the surface is clean, but the swell is weak and the energy numbers drop back down below 650. It’s all marginal at best, and there’s even a day with a “poor surf conditions” rating on the 27th.
So, if you’re looking for the best on offer in this whole 16-day window, you’re not going to find much. The first ten days are all in the “meh” category. The only real standout, and I say this with a heavy dose of “it’s still not great,” is the brief bump on Wednesday the 23rd. We’ve got the biggest swell of the period at 6ft to 6ft, and a combined energy reading of 1222 in the afternoon. That’s the most power we’ll see. But that east swell direction on a reef break that’s exposed to the south is a real mismatch. It’s not going to be pretty. It’s strictly for the experts, and even then, you’re likely to be disappointed. The period is only 10 seconds, so it’s not going to have that heavy, grinding power you want. It’s more like a short, steep, and somewhat sectiony wave. If you’re a confident charger who can handle a bit of a sloppy affair, that's the pick of a very poor bunch.
But honestly, I wouldn’t even get too amped for that. The first ten days are a wash-out for anyone with high hopes. The last week is just gutless. Around here, this kind of flat, lackluster run is pretty normal, so don’t stress too much. The conditions might change, but for now, keep your board in the car and maybe go for a paddle.
Alright, stay salty.
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Warm (max 29°C on Wed afternoon, min 26°C on Tue morning). Winds increasing (light winds from the ENE on Tue morning, fresh winds from the ENE by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri morning, min 25°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | SW 20 | SSW 19 | SW 19 | SSW 18 | SSW 18 | SSW 17 | SW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | E 8 | SSW 16 | SSW 15 | E 8 | SSW 14 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||||
557 | 480 | 535 | 541 | 541 | 510 | 367 | 447 | 826 | 725 | 675 | 627 | 506 | 512 | 323 | 324 | 375 | 366 | 331 | 302 | 334 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:22PM0.36m | 7:27AM0.60m | 5:15PM0.31m | 8:35AM0.57m | 10:01AM0.57m | 11:19AM0.58m | 11:43PM0.23m | 12:15PM0.61m | 00:42AM0.27m | 12:56PM0.63m | 1:19AM0.32m | ||||||||||
Low Tide | 1:19PM0.28m | 11:41PM0.11m | 3:06PM0.30m | 00:08AM0.13m | 00:43AM0.16m | 1:55AM0.18m | 8:04PM0.21m | 8:03PM0.18m | 5:24AM0.18m | 8:13PM0.16m | |||||||||||
6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | |
mm | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 27 | 28 | 29 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 27 | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 27 |
Feels °C | 30 | 30 | 30 | 29 | 29 | 28 | 29 | 27 | 26 | 25 | 24 | 24 | 25 | 26 | 25 | 24 | 25 | 24 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 20 | SSW 19 | SW 19 | SSW 18 | SSW 18 | SSW 17 | SW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | S 13 |
557 | 480 | 535 | 541 | 541 | 510 | 367 | 447 | 826 | 725 | 675 | 627 | 506 | 512 | 173 | 324 | 375 | 366 | 331 | 299 | 219 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | ENE 5 | E 6 | SW 12 | E 10 | SW 11 | SSW 20 | SSW 19 | WSW 9 | SSE 9 | SSE 7 | SSE 8 | SSE 6 | SSE 7 | S 16 | SSW 15 | SSW 15 | SW 15 | SW 14 | SW 14 | SW 13 |
41 | 8 | 30 | 34 | 73 | 31 | 216 | 214 | 8 | 8 | 19 | 23 | 16 | 17 | 260 | 144 | 142 | 33 | 52 | 51 | 46 | |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | E 11 | NNE 7 | SW 11 | SSE 11 | SSE 11 | SSE 10 | SSW 10 | WSW 9 | WSW 9 | S 20 | SSW 18 | S 18 | SW 15 | SSE 8 | SSE 8 | W 12 | W 13 | W 11 | W 12 |
26 | 44 | 38 | 5 | 31 | 12 | 11 | 10 | 10 | 8 | 8 | 67 | 107 | 162 | 110 | 6 | 6 | 11 | 3 | 10 | 11 | |
Wind waves Height (m) Direction Period (s) | E 5 | NE 8 | ENE 5 | E 10 | ENE 5 | ENE 10 | ENE 10 | ENE 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 |
12 | 71 | 51 | 171 | 52 | 363 | 471 | 471 | 442 | 343 | 326 | 287 | 219 | 270 | 323 | 287 | 314 | 328 | 259 | 302 | 334 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 7 | 7 | 3 | 7 | 7 | 7 | 7 | 17 | 7 | 10 | 17 | 8 | 7 | 9 | 7 | 8 | 17 | 7 | 23 | 20 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.










