Surf Forecasts:
Kailua Beach surf forecast from 27 Aug 2026:
- Most powerful swell: Tuesday 1 Sep, 11AM (local time) - 6.5ft (2.0m), 8s period, ENE swell with 538 kJ wave energy.
Best Forecast Surf Conditions for Kailua Beach this week:
The most powerful waves expected at Kailua Beach in the next 16 days are 2.0m 8s and forecast to arrive on Tuesday (Sep 01) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 17s period and expected on Thursday (Aug 27) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Tue 1st Sep) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you from the jump – this forecast for Kailua Beach is a tough one to watch. We're going to be staring at an ugly stretch of onshore wind and choppy, bumpy waves pretty much right through the rest of August and well into the first week of September. The wind is hammering in from the ENE at 18 to 22 mph for days on end, and the swell is a short-period, wind-driven mess, hanging around 5 ft to 6 ft. The energy in the water is moderate for now, but it’s just not surfable with that wind.
Honestly, we don't see anything worth paddling out for until we get further into the second week of the forecast. There's a solid blank run of over a week with nothing but "poor surf conditions" flagged. The wind eases a bit around September 1st, dropping to 16 mph, but it's still onshore or cross-onshore and lumpy. The wave energy starts cranking up through the first week of September, but the quality is just not there.
Now, around the 8th of September, things start to look a little more interesting, but it's still not clean. We finally see a drop in wind on the morning of Tuesday the 8th, down to just a light breeze of 6 mph from the ENE. The swell is a clean 6 ft with a longer period of 10 seconds, and the energy is strong. It's still a cross-onshore wind, so it's not perfect, but this is the first glimmer of something that might be fun on a longboard.
Then we get to Wednesday the 9th of September. The afternoon brings a gem of a forecast. Swell is up to 7 ft from the ENE, the period jumps to a sweet 11 seconds, and the wind swings to a gentle offshore NE breeze at 9 mph. This is the standout moment of the entire 16 days. The energy is very strong, and that offshore wind is going to make for some clean, rippable walls at this point break. This is the pick of the period for the intermediate surfer – just remember the ENE swell direction is coming nicely into Kailua, but the NE offshore wind is exactly what this spot needs. It's a bit on the bigger side, but 7 ft with offshore wind is prime.
Thursday the 10th of September keeps the hope alive. Morning sees a light 6 mph breeze from the east, waves at 8 ft from the ENE, and a long period of 11 seconds. The energy is massive. The afternoon gets a little bigger, with 8 ft waves and very strong energy. The wind stays light. Now, 8 ft is pushing into expert territory for a point break, and with that long period, the sets will be powerful and the lulls longer. But for the experienced crew, this is a solid window. The water temp is a pleasant 81° and sitting right around average for this time of year.
If you’re a beginner, steer clear once it goes over 5 ft, and definitely past 7 ft. The good surf is all clustered in the second week, so be patient. The first nine days are a write-off unless you have a kite. For the rest of us, eyes on Wednesday the 9th and Thursday the 10th.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 26°C on Thu afternoon, min 25°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 26°C on Sun morning, min 25°C on Sun morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | E 6 | ENE 6 | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 14 |
Wave Graph | |||||||||||||||||||||
176 | 139 | 151 | 144 | 146 | 212 | 210 | 298 | 295 | 263 | 306 | 241 | 407 | 447 | 476 | 538 | 493 | 403 | 519 | 382 | 207 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:39PM0.83m | 2:24AM0.59m | 2:58PM0.81m | 3:03AM0.63m | 3:17PM0.77m | 3:44AM0.66m | 3:35PM0.72m | 4:29AM0.68m | 3:51PM0.67m | 5:22AM0.68m | 4:02PM0.61m | 6:31AM0.67m | 3:59PM0.56m | ||||||||
Low Tide | 9:03PM0.26m | 8:19AM0.14m | 9:21PM0.22m | 8:54AM0.19m | 9:41PM0.18m | 9:31AM0.26m | 10:03PM0.15m | 10:11AM0.34m | 10:30PM0.13m | 10:57AM0.42m | 11:01PM0.13m | 12:04PM0.50m | 11:40PM0.13m | ||||||||
6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | |
mm | — | — | — | — | — | 1 | — | — | — | — | — | 1 | — | — | 2 | 1 | 1 | — | — | — | 5 |
Temp °C | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 23 | 24 | 23 | 23 | 24 | 22 | 22 | 23 | 22 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 27 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | S 17 | S 17 | S 16 | S 15 | S 14 | E 14 | E 13 | S 13 | E 12 | E 11 | S 12 | ENE 11 | S 11 | S 10 | SSW 19 | SSW 18 | SSW 18 | SSW 17 | E 16 | E 15 | E 9 |
214 | 143 | 121 | 104 | 100 | 146 | 126 | 54 | 75 | 65 | 25 | 37 | 21 | 19 | 74 | 63 | 107 | 96 | 121 | 153 | 133 | |
Swell 2 Height (m) Direction Period (s) | N 8 | NNE 8 | NNE 7 | E 16 | E 15 | S 14 | S 13 | SW 17 | S 12 | S 12 | SSW 15 | S 11 | SSW 15 | SSW 14 | S 10 | S 10 | S 12 | E 17 | S 16 | S 16 | E 14 |
12 | 13 | 17 | 78 | 104 | 60 | 54 | 12 | 26 | 25 | 23 | 22 | 21 | 20 | 18 | 7 | 11 | 53 | 82 | 78 | 196 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | E 17 | S 11 | N 7 | NW 8 | SW 18 | NW 8 | SSW 17 | SSW 16 | S 16 | SSW 15 | S 21 | S 19 | SW 14 | SSW 13 | E 15 | S 10 | S 10 | ESE 12 | S 15 |
14 | 14 | 24 | 9 | 4 | 3 | 12 | 3 | 28 | 26 | 5 | 22 | 8 | 28 | 7 | 17 | 17 | 8 | 8 | 46 | 68 | |
Wind waves Height (m) Direction Period (s) | E 6 | ENE 6 | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
176 | 139 | 151 | 144 | 146 | 212 | 210 | 298 | 295 | 263 | 306 | 241 | 407 | 447 | 476 | 538 | 493 | 403 | 519 | 382 | 207 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 42 | 41 | 41 | 41 | 122 | 41 | 46 | 48 | 46 | 42 | 48 | 41 | 41 | 46 | 17 | 41 | 46 | 18 | 41 | 41 | 41 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kailua Beach Surf forecast
The above surf forecast table for Kailua Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kailua Beach can be found by selecting the local surf guide option on the grey menu. Our Kailua 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 (Kailua 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 Kailua 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.
Kailua Beach is 0 km (0 miles) from 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.











