Surf Forecasts:
Middles/Generals surf forecast from 11 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 2PM (local time) - 7ft (2.2m), 8s period, ENE swell with 666 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 2.2m 8s and forecast to arrive on Thursday (Sep 17) at 2PM. 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 | 2PM (Thu 17th Sep) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Middles/Generals over the next 16 days.
The Lowdown
Right, let’s have a look at the outlook for Middles/Generals.
Alright, mate, it’s Rusty here. Let’s be straight: the next week and a half is a bit of a write-off for any decent waves at Middles/Generals. We’ve got a long stretch of poor surf conditions from now until the 23rd of September. The wind is mostly a moderate to fresh cross-shore from the ENE or NE, with speeds sitting around 12 to 25 mph, so it’s messy and chopped-up. Swell is small, mostly around 2 ft to 3 ft with short periods of 8 to 11 seconds, which doesn't pack any punch. The combined energy of all swells is weak to moderate, usually well under 500. On the 16th, the wind cranks up to 25 mph and we get a weird spike of 3 ft from the SSW at a very long 18 seconds, but with that wind it's just a mess.
We do have a glimmer of hope, though. The standout window is the morning of Wednesday, the 23rd of September. The wind will swing around to the SE at only 3 mph and go glassy. The swell will be a solid 8 ft from the ENE with a period of 8 seconds, and the combined energy will be strong at 1045. That’s excellent surf for experienced surfers only—anything over 8 ft is expert territory, and this is close. It’s a fairly consistent spot, and with that glassy morning, it will be clean. Expect crowds, though, as it’s often busy here. The water temperature is about average for this time of year.
After that, the 24th looks okay but more marginal with a cross-shore wind and lumpy conditions, and the 25th brings a cleaner, smaller SSW groundswell with light cross-off winds, offering good conditions but much smaller waves at 3 ft to 3 ft.
So, your best bet is definitely that Wednesday morning session. It’s the only real standout in this 16-day stretch.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Thu night, min 24°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 24°C on Sun night). Mainly strong winds. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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) | ENE 7 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | SSW 19 | ENE 7 | SSW 18 | ENE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 158 | 370 | 313 | 187 | 160 | 98 | 99 | 115 | 115 | 77 | 139 | 129 | 114 | 94 | 82 | 470 | 227 | 541 | 456 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 3:11AM0.50m | 3:13PM0.59m | 3:51AM0.55m | 3:42PM0.51m | 4:32AM0.57m | 4:10PM0.44m | 5:15AM0.59m | 4:37PM0.37m | 6:02AM0.58m | 5:04PM0.30m | 6:56AM0.56m | 5:30PM0.25m | |||||||
Low Tide | 9:26PM0.04m | 9:14AM0.08m | 9:49PM0.03m | 10:05AM0.12m | 10:11PM0.04m | 10:58AM0.16m | 10:34PM0.05m | 11:57AM0.20m | 10:58PM0.06m | 1:10PM0.23m | 11:24PM0.09m | 2:59PM0.23m | 11:56PM0.11m | ||||||
 |  | |  | | | | | | | | | |  | | | | | | |
 | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — |
 | 6:37 | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 23 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 26 | 25 | 26 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | ENE 11 | SW 15 | ENE 10 | ENE 10 | NE 9 | NNE 9 | NE 9 | NE 9 | NE 9 | SW 14 | SW 22 | NE 8 | NE 8 | SW 19 | SSW 19 | SW 18 | SSW 18 | SW 17 |
| kJ | 268 | 370 | 229 | 187 | 160 | 81 | 99 | 115 | 115 | 77 | 49 | 227 | 114 | 94 | 384 | 470 | 455 | 541 | 429 |
Swell 2 Height (m) Direction Period (s) | E 11 | SW 16 | NNE 8 | SW 15 | NE 8 | ENE 10 | SSW 13 | SW 15 | SSW 15 | SW 12 | SW 23 | SW 14 | SW 21 | SW 20 | E 12 | E 11 | SW 12 | SW 11 | SW 11 |
| kJ | 93 | 261 | 39 | 226 | 74 | 98 | 68 | 107 | 84 | 38 | 86 | 49 | 224 | 392 | 42 | 58 | 35 | 31 | 19 |
Swell 3 Height (m) Direction Period (s) | S 12 | NNE 8 | SSW 12 | NNE 8 | SW 15 | SW 16 | SW 16 | SSW 12 | SW 12 | ENE 8 | SSW 11 | SSW 11 | SSW 13 | SW 13 | E 7 | NNE 8 | WSW 8 | W 8 | SSE 11 |
| kJ | 69 | 37 | 46 | 39 | 242 | 124 | 64 | 57 | 23 | 14 | 12 | 12 | 68 | 41 | 15 | 32 | 6 | 6 | 12 |
Wind waves Height (m) Direction Period (s) | ENE 7 | — | ENE 11 | — | — | — | ENE 9 | E 9 | ENE 9 | NE 5 | NE 8 | NE 8 | — | — | NE 8 | ENE 6 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 158 | — | 313 | — | — | — | 84 | 78 | 59 | 22 | 139 | 129 | — | — | 82 | 77 | 227 | 306 | 456 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 48 | 48 | 16 | 16 | 42 | 16 | 16 | 16 | 16 | 30 | 16 | 48 | 16 | 16 | 48 | 48 | 55 | 57 | 49 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.
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