Surf Forecasts:
Middles/Generals surf forecast from 12 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 5AM (local time) - 18ft (5.5m), 10s period, ENE swell with 5,651 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 5.5m 10s and forecast to arrive on Sunday (Aug 16) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 16s period and expected on Tuesday (Aug 18) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Sun 16th Aug) | 18ft (5.5m) 10s |
Table - best surf conditions forecast for Middles/Generals over the next 16 days.
The Lowdown
Alright folks, Rusty here, and I’ve gotta be straight with you – it’s a tough stretch ahead for Middles/Generals. The whole 16-day window is looking pretty bleak, with no real standout windows for a decent paddle. The wind is a constant problem, and the surf just never seems to line up.
Let’s kick things off from Wednesday, August 12th. The water’s sitting at about 81°, which is bang on average for this time of year, so at least you won’t need a thick wetsuit. But the surf? We’ve got a long-period, 18-second groundswell from the South pushing in around 3 ft, but the wind is a fresh cross-shore from the ENE at 19 mph, just messing it all up. The combined energy is a moderate 892, but the description says it all: “poor surf conditions.” That’s the story for the next few days.
Moving into Thursday, August 13th, and Friday, August 14th, it’s more of the same. The swell stays small, around 3 ft to 4 ft, and that ENE wind just won’t quit, blowing 22-25 mph. We see a shift on Friday afternoon when the swell direction swings to the ENE and the period drops to a short, weak 8 seconds. The energy is still moderate, but the wind is fresh and cross-shore – it’s all lumpy, messy cross-chop.
Now, the weekend of August 15th and 16th gets a bit wild, but not in a good way. Saturday morning, the swell jumps to 10 ft from the ENE, a short 11-second period, with a near gale from the NE at 28-31 mph. The combined energy hits a strong 2183, and by the afternoon it’s a whopping 2502. That’s a lot of power, but with the wind howling and the surf turning into a washing machine, this is strictly for the kamikaze crew. By Sunday, the 16th, we’re looking at 12 ft waves from the East, but with a risk of thunderstorms and a near gale cross-onshore wind. The description says “blown out” – and that’s putting it mildly. This setup is far more interesting for kite surfers than paddle surfers.
The following week, from Monday, August 17th, onwards, the swell drops back down to 5 ft to 6 ft, but those short, weak 7-8 second periods from the ENE keep things sloppy. The wind is a constant cross-shore or cross-onshore breeze, leaving the surface choppy and lumpy. The combined energy drops to weak levels, around 201 to 395, by the 20th.
There’s a tiny flicker of hope toward the end of the run. Around Sunday, August 23rd, a long-period, 16-second SSW groundswell shows up, pushing in at 3 ft. The combined energy is moderate at 585, but the wind is still a moderate cross-shore from the ENE. It’s cleaner than the rest, but still not what you’d call “good.” The same pattern continues into the final days, with the same SSW swell and moderate cross-shore winds, but the surf quality never gets a green light.
So, what’s the verdict? There are no good surf options in this 16-day window. The winds are relentless, the swell either too small, too short-period, or blown out by a gale. If you’re desperate for a paddle, the best of a bad lot is probably the morning of Sunday, August 23rd, with that 3 ft SSW groundswell and a moderate breeze, but don’t expect much. It’s a tough run, but that’s the way it goes sometimes.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 26°C on Wed night, min 25°C on Wed morning). Mainly strong winds. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Sun morning. Warm (max 27°C on Sun afternoon, min 25°C on Sat morning). Winds decreasing (gales from the ENE on Sun morning, light winds from the ESE by Sun night). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | ENE 8 | ENE 8 | ENE 11 | E 10 | ENE 10 | E 10 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 6 |
Wave Graph | |||||||||||||||||||||
509 | 498 | 520 | 501 | 662 | 537 | 411 | 441 | 654 | 1961 | 2291 | 2908 | 2533 | 1156 | 621 | 438 | 356 | 231 | 239 | 232 | 200 | |
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-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross |
High Tide | 3:14PM0.76m | 3:27AM0.36m | 3:49PM0.71m | 4:15AM0.41m | 4:22PM0.64m | 5:04AM0.45m | 4:53PM0.55m | 5:55AM0.48m | 5:21PM0.47m | 6:52AM0.50m | 5:48PM0.38m | 7:56AM0.52m | 6:10PM0.31m | ||||||||
Low Tide | 8:22AM-0.02m | 10:21PM0.04m | 9:11AM0.01m | 10:50PM0.04m | 10:01AM0.07m | 11:17PM0.04m | 10:54AM0.13m | 11:44PM0.05m | 11:53AM0.20m | 00:11AM0.05m | 1:08PM0.25m | 00:39AM0.07m | 2:59PM0.27m | 1:14AM0.09m | |||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | 10 | 4 | 8 | 3 | 3 | — | — | — | — |
Temp °C | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 22 | 24 | 24 | 23 | 24 | 23 | 23 | 22 | 23 | 23 | 23 | 22 | 25 | 27 | 28 | 27 | 23 | 22 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | 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 16 | ENE 9 | ENE 8 | ENE 8 | S 14 | S 13 | S 13 | S 13 | S 13 |
509 | 498 | 520 | 501 | 662 | 537 | 411 | 411 | 306 | 222 | 168 | 176 | 334 | 1156 | 621 | 438 | 260 | 170 | 125 | 83 | 80 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSW 12 | W 12 | W 11 | W 12 | W 12 | W 11 | W 11 | W 13 | S 18 | W 12 | SSE 8 | SSE 7 | S 14 | SSE 6 | SSE 5 | SW 17 | SW 18 | SSE 8 |
218 | 218 | 222 | 113 | 11 | 10 | 11 | 11 | 9 | 9 | 30 | 56 | 25 | 93 | 99 | 334 | 20 | 5 | 74 | 80 | 14 | |
Swell 3 Height (m) Direction Period (s) | W 13 | W 12 | W 12 | W 12 | SW 19 | SW 18 | SW 18 | SSW 18 | SSW 17 | SW 17 | S 16 | W 13 | SSW 19 | S 13 | S 14 | SSE 6 | SW 5 | W 11 | SSE 8 | SSE 9 | W 12 |
30 | 25 | 25 | 11 | 14 | 13 | 12 | 30 | 29 | 12 | 43 | 30 | 37 | 165 | 250 | 18 | 7 | 10 | 14 | 26 | 26 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 7 | E 6 | ENE 6 | ENE 6 | E 7 | ENE 7 | ENE 8 | ENE 8 | ENE 11 | E 10 | ENE 10 | E 10 | — | — | — | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 6 |
165 | 163 | 220 | 172 | 252 | 411 | 404 | 441 | 654 | 1961 | 2291 | 2908 | 2533 | — | — | — | 356 | 231 | 239 | 232 | 200 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 110 | 21 | 60 | 60 | 49 | 60 | 114 | 55 | 217 | 217 | 217 | 217 | 110 | 42 | 42 | 19 | 48 | 48 | 48 | 16 |
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.











