
Surf Forecasts:
Nimitz Beach surf forecast from 12 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 2AM (local time) - 10ft (3.0m), 11s period, E swell with 1,763 kJ wave energy.
Best Forecast Surf Conditions for Nimitz Beach this week:
The most powerful waves expected at Nimitz Beach in the next 16 days are 3.0m 11s and forecast to arrive on Sunday (Aug 16) 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 2.5m 11s period and expected on Saturday (Aug 15) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 16th Aug) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Nimitz Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer for the next couple of weeks.
Right off the bat, we’re looking at a pretty quiet run. The first surf worth paddling out for isn’t until Tuesday, 11th August, at Nimitz Beach. This is a reef break, so you’ve got to be a bit careful with your feet, but it’s a beginner-friendly spot. The water’s sitting at 81°, which is pretty much what you’d expect for this time of year – no major surprises there.
Tuesday 11th August sees a small, clean wave with a 3ft SSW swell pushing through. The wind is a cross-off from the ENE at 19 mph, which will keep the surface tidy. The combined energy is moderate (554). It’s not going to blow your mind, but it’s a start.
Wednesday 12th August is a bit better. The morning picks up a 3ft S swell with a very long 18-second period – that’s proper groundswell energy. The wind is a lighter cross-off at 16 mph, and the wave energy is solid (1025). This is a good one for a reef or point break, as the long period might make the waves a bit too straight for your average beach break. The afternoon is similar, with a 4ft S swell and still clean.
Thursday 13th August holds the same vibe. A 4ft S swell, 16-second period, and cross-off wind. It’s clean, but there’s a “marginal surf” tag on it, so it’s not a standout.
Now, Saturday 15th August is interesting, but maybe not for the right reasons. The swell jumps to 6ft from the east, with a period of 11 seconds. The wind is a strong 25 mph cross-off from the NE. The wave energy is strong (1144). This is getting into the size range where beginners might struggle, and with that wind, it’s going to be a bit of a battle. The afternoon sees a 8ft E swell, which is pushing into expert territory.
Sunday 16th August is a write-off. We’ve got a risk of thunderstorms, strong cross-onshore winds, and an 8ft E swell. The wave energy is very strong (1505), but the conditions are just plain messy. This is kite-surfing weather, not paddle-surfing weather.
The rest of the window from Monday 17th August through to Wednesday 26th August is a real mixed bag of small, marginal waves. The swell drops right back to 2ft to 4ft, with periods that are either very long (16-20 seconds) or very short (7 seconds). The wind is mostly cross-off or cross-shore, and the wave energy is moderate to strong, but the scores are low. Expect a lot of clean but weak surf, or a bit of chop. There’s nothing here that screams “go,” but it’s not completely flat either.
The one and only true standout is Wednesday 12th August morning. The combination of a 3ft S swell at 18 seconds, light cross-off wind, and solid energy (1025) makes for the best chance of a clean, fun, long-period wave. But remember, that long period (over 15 seconds) means it’s best at a reef or point break like Nimitz; it might break a bit too straight out on the beach. It’s not a big wave, but it’s the pick of the bunch.
So, overall, a quiet start, a couple of decent mornings next week, and then a long stretch of mediocrity. Keep your eyes peeled for changes, but don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Tue afternoon, min 25°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 26mm), heaviest during Sun morning. Warm (max 28°C on Fri afternoon, min 25°C on Fri night). Winds decreasing (gales from the ENE on Sat night, light winds from the ESE by Mon morning). | |||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | SSW 14 | S 20 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | S 14 | S 14 | S 13 |
Wave Graph | ||||||||||||||||||||
336 | 373 | 627 | 741 | 1029 | 858 | 763 | 636 | 496 | 496 | 382 | 831 | 1201 | 1763 | 1209 | 1184 | 1090 | 268 | 264 | 225 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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-on | cross-on | cross-on | cross-on | cross-off | cross-off |
High Tide | 3:23PM0.83m | 3:22AM0.36m | 3:59PM0.80m | 4:08AM0.41m | 4:32PM0.75m | 4:55AM0.46m | 5:02PM0.68m | 5:41AM0.50m | 5:29PM0.60m | 6:30AM0.53m | 5:53PM0.51m | 7:23AM0.54m | 6:10PM0.44m | |||||||
Low Tide | 10:23PM0.11m | 8:53AM0.02m | 10:50PM0.10m | 9:42AM0.06m | 11:15PM0.09m | 10:30AM0.11m | 11:40PM0.09m | 11:19AM0.18m | 00:04AM0.09m | 12:13PM0.25m | 00:28AM0.10m | 1:18PM0.31m | 00:54AM0.11m | |||||||
— | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | |
7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 12 | 3 | 2 | 1 | 2 | — |
Temp °C | 28 | 26 | 27 | 27 | 25 | 28 | 28 | 26 | 27 | 28 | 26 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 26 | 25 | 25 | 24 | 24 | 26 | 25 | 25 | 24 | 25 | 24 | 24 | 24 | 23 | 21 | 24 | 28 | 29 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | E 10 | E 9 | E 8 | ENE 8 |
336 | 317 | 627 | 741 | 1029 | 858 | 763 | 636 | 496 | 496 | 377 | 280 | 219 | 225 | 161 | 168 | 1090 | 402 | 324 | 218 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | S 20 | SSW 13 | SSW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 12 | WNW 12 | W 11 | W 11 | W 13 | S 18 | S 17 | S 16 | S 14 | S 14 | SSE 7 | S 13 |
31 | 373 | 289 | 289 | 28 | 27 | 27 | 25 | 27 | 27 | 21 | 21 | 30 | 99 | 135 | 127 | 246 | 268 | 208 | 225 | |
Swell 3 Height (m) Direction Period (s) | S 21 | SE 9 | WNW 13 | WNW 12 | SSE 9 | SSE 9 | SSE 9 | SW 18 | ESE 12 | SSW 18 | SSW 17 | SSE 11 | S 16 | WNW 13 | WNW 12 | WNW 12 | S 16 | WNW 11 | S 14 | SSE 6 |
79 | 19 | 55 | 28 | 8 | 8 | 8 | 13 | 27 | 30 | 29 | 12 | 43 | 56 | 48 | 46 | 81 | 24 | 264 | 29 | |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 6 | E 7 | E 6 | E 6 | ENE 6 | E 7 | E 8 | E 8 | E 8 | E 11 | E 11 | E 11 | E 10 | E 10 | — | SE 7 | — | ENE 8 |
108 | 127 | 109 | 117 | 141 | 120 | 165 | 217 | 253 | 286 | 382 | 831 | 1201 | 1763 | 1209 | 1184 | — | 204 | — | 209 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 9 | 7 | 7 | 17 | 7 | 8 | 23 | 8 | 18 | 152 | 177 | 177 | 177 | 177 | 256 | 33 | 17 | 7 | 7 | 7 |
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.











