Surf Forecasts:
Kailua Beach surf forecast from 14 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 8PM (local time) - 7ft (2.2m), 9s period, ENE swell with 689 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 2.2m 9s and forecast to arrive on Thursday (Sep 17) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 15s period and expected on Sunday (Sep 20) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Thu 17th Sep) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Kailua Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a long hard look at what Kailua Beach has on offer for the next couple of weeks. I gotta be straight with you – it’s a tough read.
The whole 16-day window is a bit of a bum steer. We’ve got a real dry spell to start, with absolutely nothing worth paddling out for. The first sign of life doesn’t show up until Wednesday the 16th, and even then, it’s a no-go. The waves are just messy, with onshore winds ruining everything.
From Wednesday the 16th right through to the end of the forecast on the 29th of September, the swell is actually there – it's pushing between 4 ft and 7 ft, mainly from the ENE and E. But the problem is the wind. It’s almost constantly onshore or cross-onshore, blowing at 12 to 19 mph, which is turning the ocean into a choppy, lumpy mess. The water temp is about average for this time of year, so no surprises there.
Honestly, for a spot that’s a point break exposed to the NE, this northeast wind is just killing it. Because the swell is over 5 ft at times and it's blown out, Kailua Beach looks more interesting for kite surfing than paddle surfing on most of these days. There are no standouts here; the poor surf condition tag is a constant companion. This is a long, quiet run for the area, so we just have to wait for the forecasts to change.
Rusty out.
Short Range ForecastLight rain (total 3mm), mostly falling on Sun night. Warm (max 26°C on Mon morning, min 25°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Thu night. Warm (max 27°C on Fri morning, min 25°C on Wed night). Mainly fresh winds. | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 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) | NE 9 | NE 8 | NE 8 | ENE 5 | NNE 8 | NNE 8 | ENE 5 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 123 | 82 | 69 | 53 | 46 | 52 | 87 | 105 | 162 | 342 | 512 | 597 | 507 | 484 | 418 | 445 | 551 | 504 | 523 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:32AM0.72m | 3:26PM0.60m | 5:15AM0.70m | 3:27PM0.55m | 6:09AM0.67m | 3:00PM0.53m | 7:35AM0.64m | 9:58AM0.64m | 11:15AM0.68m | ||||||||||
Low Tide | 9:43PM0.13m | 10:23AM0.39m | 10:04PM0.13m | 11:06AM0.45m | 10:26PM0.15m | 12:06PM0.50m | 10:52PM0.18m | 11:26PM0.21m | 00:33AM0.25m | 3:03AM0.26m | |||||||||
 |  |  | | | |  | | |  |  | | | | | | | | | |
 | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — |
 | 6:36 | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — |
mm | 1 | — | — | 2 | — | — | — | — | — | 4 | 2 | 4 | 15 | — | — | 2 | — | — | — |
Temp °C | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 |
Feels °C | 26 | 26 | 26 | 26 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 8 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | E 10 | E 10 | SW 17 | SSW 16 | SSW 19 | SSW 18 | SSW 17 | SW 17 | SSW 15 | SSW 16 | SW 16 | SSW 16 |
| kJ | 123 | 82 | 69 | 43 | 39 | 52 | 37 | 51 | 73 | 76 | 25 | 35 | 124 | 116 | 71 | 44 | 47 | 62 | 86 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | N 6 | SSW 22 | E 13 | E 12 | E 12 | E 11 | SW 18 | SW 18 | S 11 | SSW 19 | SSW 16 | SE 10 | SE 10 | SSE 8 | SSW 16 | S 18 | S 18 | S 13 |
| kJ | 20 | 2 | 45 | 14 | 26 | 44 | 37 | 80 | 79 | 2 | 37 | 24 | 4 | 4 | 7 | 26 | 25 | 25 | 3 |
Swell 3 Height (m) Direction Period (s) | NW 12 | SW 14 | SW 14 | NNE 10 | SW 20 | SSW 20 | SW 19 | N 9 | NNE 8 | SW 11 | S 11 | SE 10 | NW 12 | NW 10 | S 21 | S 19 | SE 9 | SSE 8 | NW 10 |
| kJ | 6 | 8 | 8 | 9 | 60 | 37 | 95 | 7 | 7 | 5 | 2 | 4 | 6 | 4 | 9 | 29 | 3 | 7 | 4 |
Wind waves Height (m) Direction Period (s) | E 4 | ENE 5 | ENE 4 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 |
| kJ | 11 | 24 | 32 | 53 | 46 | 42 | 87 | 105 | 162 | 342 | 512 | 597 | 507 | 484 | 418 | 445 | 551 | 504 | 523 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 18 | 17 | 17 | 17 | 17 | 41 | 18 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 18 | 48 | 42 | 41 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.
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