Surf Forecasts:
Nimitz Beach surf forecast from 14 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 8PM (local time) - 1.5ft (0.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 5AM (local time) - 15ft (4.5m), 10s period, E swell with 3,529 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 8PM (local time) - 1.5ft (0.5m), 16s 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 Wednesday (Aug 19) at 8PM. The primary swell is predicted to be 0.5m and 16s 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 4.5m 10s and forecast to arrive on Sunday (Aug 16) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Saturday (Aug 15) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 19th Aug) | 1.5ft (0.5m) 16s |
| Best Surf | 8PM (Wed 19th Aug) | 1.5ft (0.5m) 16s |
| Most Powerful | 5AM (Sun 16th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Nimitz Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it. We’ve got a bit of a mixed bag on the horizon for the next couple of weeks, but there are a couple of windows where it all comes together.
Right now, the first few days are a tough go. The best we’ve got on offer is Nimitz Beach, a reef set-up, but it’s inconsistent and it’s a beginner wave. The water temp is sitting about average for this time of year. On Friday the 14th, we’ve got a 4ft south swell with a 14-second period, which is a nice long groundswell, but the wind is a cross-off fresh breeze at 19 mph, so it’s not clean. The combined energy is moderate at 859. It’s a marginal call at best, and the crowd factor is there – it can get busy sometimes.
Saturday the 15th sees a jump in size to 10ft from the east, but the period drops to 9 seconds, and the wind cranks up to a near gale at 31 mph. That’s expert territory only, and with that much wind, it’s going to be a mess. The combined energy is strong at 1464, but it’s not one for paddling. Looks more like a kite-surfing day than a surf day.
Sunday the 16th is still big, with a 10ft east swell, but the wind is cross-shore and strong at 31 mph. The combined energy hits 1969, but the conditions are poor, and the wind is creating a cross-chop. A real no-go for a relaxing session.
We hit a lull from Monday the 17th all the way through to Wednesday the 20th. The swell drops right off, with heights under 3ft and combined energy levels falling below 600. It’s all marginal or poor, with cross-shore winds. That’s a few days of flatness, so don’t bother waxing up.
Now, here’s where it gets interesting. Thursday the 20th afternoon is the standout. The swell stays small at 2ft from the southwest, but the period is a very long 17 seconds – that’s proper groundswell. The wind goes glassy, which is a massive positive. Combined energy is a low 326, but for a reef break like Nimitz, that long period will wrap in nicely. The crowd factor is a thing, but when it’s glassy and clean like that, it’s worth it. This is the best on offer.
Friday the 21st and Saturday the 22nd are similar. The swell builds slightly to 3ft. Friday has light cross-onshore winds at 6 mph, so it’s not as clean. But Saturday the 22nd afternoon goes glassy again with a 3ft, 16-second southwest swell and combined energy of 431. That’s another solid session.
After that, it’s a dry spell. From Sunday the 23rd through to Wednesday the 27th, it’s all cross-off winds and dropping swell. The energy is low, and the forecasts are all poor or marginal. There’s a small bump on Thursday the 27th with a 6ft east swell, but the period is a short 8 seconds, and it’s a clean but cross-off wind at 22 mph. Not worth the paddle for the quality.
The last day on the list, Saturday the 29th, shows a 4ft east swell with a 9-second period and a moderate breeze at 16 mph. It’s marginal, but it might be a fun little session if the wind plays nice.
So, to wrap it up: if you’re keen, clear your schedule for Thursday the 20th afternoon and Saturday the 22nd afternoon. Those are the glassy windows with the long-period groundswell. The rest of the time, it’s small, windy, or just plain no-go.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun morning. Warm (max 28°C on Fri afternoon, min 25°C on Thu night). Mainly gales. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 27°C on Mon morning, min 25°C on Mon night). Mainly fresh winds. | ||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 15 | S 14 | S 14 | S 14 | E 9 | E 9 | E 10 | E 10 | E 9 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | SW 16 | SW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||
636 | 496 | 496 | 306 | 1150 | 1341 | 2407 | 1662 | 766 | 315 | 334 | 329 | 222 | 215 | 212 | 155 | 129 | 125 | 175 | |
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 | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off |
High Tide | 4:55AM0.46m | 5:02PM0.68m | 5:41AM0.50m | 5:29PM0.60m | 6:30AM0.53m | 5:53PM0.51m | 7:23AM0.54m | 6:10PM0.44m | 8:25AM0.55m | 6:13PM0.37m | 9:42AM0.56m | ||||||||
Low Tide | 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 | 2:59PM0.34m | 1:23AM0.13m | 2:04AM0.14m | |||||||
— | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
7:04 | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | |
mm | — | — | — | — | — | — | — | 3 | 4 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 28 | 26 | 27 | 28 | 26 | 26 | 26 | 26 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 25 | 24 | 25 | 24 | 23 | 23 | 21 | 19 | 25 | 27 | 28 | 26 | 24 | 25 | 24 | 25 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 14 | S 14 | E 10 | S 13 | S 13 | S 14 | S 16 | SSE 8 | E 8 | E 8 | E 8 | E 7 | S 13 | S 13 | E 8 | E 8 | ENE 8 | ENE 8 |
636 | 496 | 496 | 212 | 280 | 219 | 179 | 188 | 347 | 309 | 206 | 168 | 131 | 215 | 212 | 103 | 84 | 85 | 83 | |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 12 | WNW 12 | S 14 | W 11 | W 13 | S 18 | S 13 | S 13 | SSE 7 | S 14 | S 14 | S 13 | SSW 17 | SSW 18 | S 13 | SW 16 | SW 16 | SSW 16 |
25 | 27 | 27 | 306 | 22 | 30 | 99 | 119 | 123 | 143 | 334 | 329 | 222 | 115 | 123 | 155 | 129 | 125 | 175 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSE 12 | SSW 18 | W 11 | SW 17 | S 16 | WNW 13 | WNW 12 | S 16 | S 14 | SSE 6 | S 6 | S 5 | E 9 | WNW 13 | WNW 12 | S 12 | S 12 | S 12 |
13 | 13 | 30 | 21 | 12 | 43 | 33 | 48 | 183 | 315 | 53 | 34 | 13 | 14 | 57 | 48 | 69 | 45 | 44 | |
Wind waves Height (m) Direction Period (s) | E 7 | E 8 | E 8 | E 8 | E 9 | E 9 | E 10 | E 10 | E 9 | ENE 8 | ENE 8 | — | ENE 7 | E 7 | E 7 | ENE 7 | — | — | — |
276 | 350 | 418 | 588 | 1150 | 1341 | 2407 | 1662 | 766 | 511 | 356 | — | 225 | 106 | 100 | 74 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 8 | 18 | 151 | 177 | 177 | 177 | 177 | 369 | 23 | 18 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 3 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











