
Surf Forecasts:
Middles/Generals surf forecast from 13 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 8PM (local time) - 7ft (2.1m), 10s period, ENE swell with 788 kJ wave energy.
Best Forecast Surf Conditions for Middles/Generals this week:
The most powerful waves expected at Middles/Generals in the next 16 days are 2.1m 10s and forecast to arrive on Thursday (Sep 17) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 18s period and expected on Wednesday (Sep 16) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Thu 17th Sep) | 7ft (2.1m) 10s |
Table - best surf conditions forecast for Middles/Generals over the next 16 days.
The Lowdown
Right now, Middies/Generals isn’t doing us any favors. The whole 16-day window is a write-off for decent surf, and I’m not going to sugarcoat it. There’s nothing here that’s worth paddling out for.
We start off this Sunday morning, September 13th, with a tiny 3ft of swell from the NNE, but the ENE breeze is putting a chop on it. The energy’s weak at 161, and honestly, it’s just a mess. The afternoon stays poor, too.
Monday and Tuesday stay in the same rut—small, cross-shore winds, and the wave energy's all over the place. The period drops to 8 seconds on Monday, so it’s all short-period junk. Tuesday’s waves are barely knee-high at 1ft in the morning. We’re just waiting for something to happen.
Wednesday the 16th starts showing a bit of push—4ft in the morning, with moderate energy at 337. But the wind stays cross, so it’s lumpy. The afternoon, though, there’s a glimpse of a long-period SSW swell at 18 seconds and the energy jumps to 732. But with the NE cross-breeze, it’s still not clean. That long period is too straight for this setup anyway.
Thursday the 17th is the first real size day—7ft—but it’s short-period (7-10 seconds) and the wind is strong and cross. The energy’s up there (532 to 966), but the quality is zero. It’s a washing machine. Not worth the fight.
Friday the 18th drops back to 3ft, still with that long SSW period (17s), but the energy is high (1128). The risk of thunderstorms and a fresh cross-shore breeze means it stays marginal. Honestly, that’s not a yes.
Then we hit a rough patch. From Saturday the 19th through Monday the 21st, the swell builds back to 6ft-7ft, but it’s all short-period ENE windswell, and the winds are cross-onshore and messy. That’s not surf; that’s just chop. The energy is moderate to strong (624-976), but with the quality this bad, it doesn’t matter.
Tuesday the 22nd stays at 5ft, same ENE short-period, same fresh cross-shore winds. No good.
Wednesday the 23rd sees the biggest energy spike of the window, hitting 1560, with 7ft of east swell. But the period is only 10-11 seconds, and the wind is fresh and cross. It’s still poor. That energy is just raw power with no shape.
Thursday the 24th keeps 7-8ft on the table, short-period, strong cross-shore winds. Still no good. Friday the 25th the wind turns cross-onshore and strong, with 6-6ft of short-period ENE. That’s just blown-out. No good.
Saturday the 26th drops slightly to 5ft in the morning, but the wind is fresh cross-onshore. The afternoon has a longer period (14s) from the SSW, but it’s still lumpy. Still not clean.
Sunday the 27th is the last real push—7-7ft of NE swell, short period, fresh cross-shore winds. It’s big, but it’s messy. And Monday the 28th keeps 5-6ft with the same story. Cross-on, lumpy, and poor.
So, look, there’s nothing here that’s surfable. The water’s warm, around 81°, which is about normal for this time of year, so that’s not an issue. But the wind is just never right, and the swell is either too small, too short-period, or too blown out. On the days with size, like Thursday the 17th, the 20th, or the 23rd, the conditions are so rough that it’s really only interesting if you’re a kite surfer, not a paddle surfer.
This is just a blank run, plain and simple. It can happen. The forecasts change, but as it stands, I’d save your energy. There’s no standout day in this window. Keep the board in the car, but don’t get your hopes up.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 25°C on Sun morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Fri morning. Warm (max 27°C on Fri morning, min 25°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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) | NNE 9 | NNE 9 | NE 9 | NE 8 | NE 8 | SSW 13 | E 12 | E 12 | SSW 19 | ENE 10 | SSW 18 | SSW 17 | ENE 7 | ENE 10 | ENE 9 | SSW 17 | SSW 17 | SSW 16 | ENE 8 | ENE 8 | E 8 |
Wave Graph | |||||||||||||||||||||
99 | 99 | 79 | 74 | 149 | 68 | 46 | 68 | 470 | 331 | 541 | 377 | 383 | 756 | 677 | 622 | 580 | 539 | 473 | 449 | 566 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on |
High Tide | 4:10PM0.44m | 5:15AM0.59m | 4:37PM0.37m | 6:02AM0.58m | 5:04PM0.30m | 6:56AM0.56m | 5:30PM0.25m | 8:04AM0.54m | 6:18PM0.21m | 9:21AM0.54m | 9:37PM0.19m | 10:30AM0.55m | 11:10PM0.22m | ||||||||
Low Tide | 10:58AM0.16m | 10:34PM0.05m | 11:57AM0.20m | 10:58PM0.06m | 1:10PM0.23m | 11:24PM0.09m | 2:59PM0.23m | 11:56PM0.11m | 5:49PM0.21m | 00:44AM0.14m | 6:28PM0.17m | 2:11AM0.15m | 6:51PM0.15m | 3:49AM0.15m | |||||||
6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 4 | — | — | 1 | — | — |
Temp °C | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 |
Feels °C | 24 | 24 | 24 | 24 | 25 | 24 | 26 | 26 | 26 | 25 | 24 | 25 | 24 | 24 | 25 | 26 | 25 | 25 | 26 | 24 | 26 |
Swell 1 Height (m) Direction Period (s) | NNE 9 | NNE 9 | NE 9 | NE 8 | SW 22 | NE 8 | SW 20 | SW 19 | SSW 19 | SW 18 | SSW 18 | SSW 17 | SW 16 | SW 16 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 |
99 | 99 | 79 | 74 | 227 | 31 | 392 | 384 | 470 | 455 | 541 | 377 | 258 | 258 | 644 | 622 | 580 | 539 | 382 | 387 | 350 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SSW 15 | SW 12 | SW 14 | SW 14 | SW 21 | NNE 8 | NNE 8 | NNE 8 | SW 12 | E 10 | E 10 | SSW 20 | SSW 19 | W 10 | SSE 10 | SSE 8 | SSE 7 | SSW 18 | S 18 | SW 16 |
107 | 84 | 38 | 49 | 49 | 224 | 25 | 34 | 32 | 35 | 72 | 96 | 149 | 210 | 7 | 9 | 13 | 18 | 108 | 99 | 122 | |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 12 | ENE 8 | SW 23 | SSW 11 | SSW 13 | E 12 | E 12 | E 11 | S 9 | SW 11 | SSW 11 | SW 11 | SW 10 | SSE 10 | W 9 | W 9 | S 20 | SSE 6 | SSE 6 | SSW 14 |
37 | 37 | 14 | 86 | 12 | 68 | 46 | 68 | 58 | 6 | 43 | 12 | 18 | 4 | 9 | 2 | 7 | 67 | 13 | 7 | 37 | |
Wind waves Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 4 | E 4 | NE 8 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | ENE 10 | ENE 6 | ENE 6 | ENE 7 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 |
62 | 59 | 13 | 13 | 149 | 56 | 31 | 32 | 55 | 331 | 119 | 213 | 383 | 756 | 677 | 497 | 437 | 473 | 473 | 449 | 566 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 16 | 17 | 48 | 16 | 16 | 16 | 19 | 19 | 48 | 110 | 48 | 110 | 110 | 48 | 48 | 55 | 48 | 50 | 48 | 48 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Middles/Generals Surf forecast
The above surf forecast table for Middles/Generals provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Middles/Generals can be found by selecting the local surf guide option on the grey menu. Our Middles/Generals 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 (Middles/Generals) 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 Middles/Generals 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.
Middles/Generals is 15 km (9 miles) from the city of Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.










