Surf Forecasts:
Nimitz Beach surf forecast from 16 Aug 2026:
- Best quality surf: Monday 17 Aug, 2AM (local time) - 3ft (0.9m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 2AM (local time) - 15ft (4.5m), 10s period, E swell with 4,185 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 2AM (local time) - 3ft (0.9m), 14s 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 Monday (Aug 17) at 2AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 1.3m and 8s. Another secondary swell of 1.1m and 7s is also forecast. 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 4.5m 10s 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 1.6m 8s period and expected on Monday (Aug 17) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 17th Aug) | 3ft (0.9m) 14s |
| Best Surf | 2AM (Mon 17th Aug) | 3ft (0.9m) 14s |
| Most Powerful | 2AM (Sun 16th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Nimitz Beach over the next 16 days.
The Lowdown
Righto, surfers, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks.
To be straight with you, the next few days are a bit of a write-off. We’re looking at a stretch of rough, messy conditions to start, with strong cross-onshore winds and poor surf. That’s the story for Sunday the 16th and into Monday. The swell energy is high, clocking in at 1786, but it’s all wind-affected junk. Honestly, not worth paddling out for.
Things start to clean up from Tuesday morning, the 18th, with a cleaner look to the waves, but the swell is still tiny—around 3 ft—and the energy is weak (475). Not much to get excited about, just small, clean little waves for a beginner session.
The real gem in this forecast is the morning of Thursday the 20th. Nimitz Beach is setup for a glassy session. The wind is dead calm, the swell is a clean 2 ft from the southwest with a very long period of 18 seconds. That’s proper groundswell energy (397), and it’ll be offering up some nicely shaped, glassy lines. This is about as good as it gets in this window. The water temp is about average for this time of year, so nothing to note there.
After that, we drift back into a pattern of small, marginal waves. The rest of the week and into the next sees a mix of cross-off winds and clean conditions, but the swell stays stubbornly small, rarely cracking 3 ft. The energy is moderate at best, bouncing around 300-500.
There’s a bit of a pulse building around the 28th and 29th of August. Swell size picks up to 7 ft to 10 ft from the east, but the period is short (8-9 seconds), making it a messy, lumpy windswell. With strong cross-off winds, it’ll be clean but pretty roly-poly. At 10 ft, it’s strictly for experts only. This one is worth keeping an eye on, but it’s far out, so treat it as a promising possibility rather than a firm booking.
Overall, Thursday the 20th morning is your standout. Everything else is a waiting game for small, clean slop or a distant, raw swell.
Rusty
Short Range ForecastHeavy rain (total 52mm), heaviest during Sun morning. Warm (max 27°C on Sun afternoon, min 24°C on Mon night). Winds decreasing (gales from the ENE on Sat night, light winds from the ENE by Sun night). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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) | E 10 | E 9 | E 9 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | E 9 | SW 16 | SW 16 | SSW 16 | SW 18 | SW 17 | SSW 16 | SW 17 | SSW 16 | SW 16 |
Wave Graph | |||||||||||||||||||
4185 | 950 | 506 | 315 | 334 | 329 | 222 | 215 | 166 | 122 | 129 | 125 | 175 | 316 | 305 | 347 | 295 | 326 | 367 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | glassy | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 6:30AM0.53m | 5:53PM0.51m | 7:23AM0.54m | 6:10PM0.44m | 8:25AM0.55m | 6:13PM0.37m | 9:42AM0.56m | 11:04AM0.57m | 12:12PM0.60m | 11:03PM0.23m | |||||||||
Low Tide | 00:04AM0.09m | 12:13PM0.25m | 00:28AM0.10m | 1:18PM0.31m | 00:54AM0.11m | 2:59PM0.34m | 1:23AM0.13m | 2:04AM0.14m | 3:11AM0.15m | 9:15PM0.23m | |||||||||
— | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
7:01 | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | |
mm | 17 | 27 | 7 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 26 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 26 |
Feels °C | 20 | 23 | 27 | 26 | 27 | 27 | 25 | 24 | 25 | 24 | 26 | 27 | 27 | 29 | 29 | 29 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSE 9 | E 9 | E 8 | E 8 | E 7 | E 7 | S 13 | E 7 | S 13 | SW 16 | E 8 | E 8 | SW 18 | SW 17 | SSW 16 | SW 17 | SSW 16 | SW 16 |
176 | 523 | 506 | 228 | 172 | 134 | 106 | 215 | 88 | 114 | 129 | 86 | 64 | 316 | 305 | 347 | 295 | 326 | 367 | |
Swell 2 Height (m) Direction Period (s) | S 18 | S 13 | S 13 | S 7 | S 14 | S 14 | S 13 | SSW 17 | S 13 | SE 6 | S 12 | S 12 | SSW 16 | E 8 | E 7 | ENE 7 | E 9 | E 8 | ENE 7 |
99 | 121 | 215 | 113 | 334 | 329 | 222 | 115 | 166 | 11 | 69 | 71 | 175 | 42 | 40 | 43 | 38 | 22 | 30 | |
Swell 3 Height (m) Direction Period (s) | WNW 13 | S 16 | S 16 | S 14 | SSE 6 | S 6 | SW 6 | W 13 | SSW 18 | SW 18 | SE 10 | SW 16 | S 12 | S 11 | S 11 | S 11 | NE 8 | NE 7 | S 13 |
33 | 192 | 183 | 315 | 33 | 33 | 8 | 31 | 123 | 79 | 24 | 125 | 45 | 39 | 21 | 39 | 20 | 19 | 54 | |
Wind waves Height (m) Direction Period (s) | E 10 | E 9 | SSE 8 | — | ENE 8 | — | ENE 7 | E 7 | ENE 6 | E 9 | E 8 | NNE 6 | NE 6 | — | — | — | — | — | — |
4185 | 950 | 315 | — | 276 | — | 163 | 114 | 98 | 122 | 111 | 26 | 40 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 195 | 180 | 33 | 3 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 3 | 3 | 3 | 3 | 7 | 7 | 3 |
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.











