Surf Forecasts:
Waimanalo surf forecast from 27 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 5AM (local time) - 7ft (2.2m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 11AM (local time) - 6.5ft (2.0m), 13s period, E swell with 1,359 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 5AM (local time) - 7ft (2.2m), 10s period with ENE swell.
Best Forecast Surf Conditions for Waimanalo this week:
The surf forecast for Waimanalo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 5AM. The primary swell is predicted to be 2.2m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Waimanalo in the next 16 days are 2.0m 13s and forecast to arrive on Tuesday (Jul 28) 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 0.4m 15s period and expected on Monday (Jul 27) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 29th Jul) | 7ft (2.2m) 10s |
| Best Surf | 5AM (Wed 29th Jul) | 7ft (2.2m) 10s |
| Most Powerful | 11AM (Tue 28th Jul) | 6.5ft (2.0m) 13s |
Table - best surf conditions forecast for Waimanalo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at the forecast for the next couple of weeks.
Right off the bat, I gotta be straight with you – it's a tough watch. The next week and a half is looking pretty grim. We've got a solid run of onshore and cross-onshore winds blowing, and the surf just isn't coming together. The waves are there, but the conditions are labelled as "poor surf conditions" for days on end. There's a real dry spell here, with no real recommendations until we get into the second week of August.
The only glimmer of hope, and I mean the *only* one, shows up on Wednesday, July 29th. We've got a window where the wind swings around to a light cross-offshore breeze from the SSE, and the forecast says "expect very good surf conditions". The swell is coming from the ENE at 7ft with a short period of 9 seconds. The combined energy is moderate (674). But this is a short-lived window; by the afternoon it’s back to marginal conditions. The water temperature is about average for the time of year at 80°, so nothing unusual there.
For the rest of the period, it's a bust. The wind is relentless, mostly from the ENE, and it's just too strong and too onshore to make anything of the waves. We get a couple of days in early August where the swell picks up to over 8ft, but with a strong breeze and lumpy conditions, that's a kite-surfing setup, not a paddle-surfing one. The wave energy gets up to strong levels (1073) on the 1st of August, but it’s messy.
We finally get a bit of a break on Tuesday, August 11th. The wind goes light and cross-offshore, and the waves are small, just 4ft, but the conditions are "surfable waves but very ordinary conditions". It’s not going to be a classic, but after so long with nothing, it might be the only chance for a paddle.
So, to wrap it up: mark your calendar for Wednesday the 29th for a brief, clean session, and maybe keep an eye on the 11th of August. Otherwise, it's a waiting game. The forecasts can always change, so don't give up hope entirely.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Warm (max 27°C on Wed morning, min 25°C on Mon morning). Winds decreasing (fresh winds from the NE on Mon night, light winds from the SSW by Wed morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Thu morning, min 24°C on Sat night). Winds increasing (light winds from the E on Thu morning, strong winds from the ENE by Sat morning). | ||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 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 14 | E 13 | E 13 | E 13 | E 12 | ENE 11 | ENE 9 | ENE 9 | ENE 8 | E 8 | E 8 | E 7 | E 8 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 640 | 690 | 1275 | 1359 | 1292 | 883 | 674 | 453 | 373 | 272 | 300 | 348 | 496 | 537 | 680 | 754 | 867 | 956 | 642 | 597 | 499 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | on | on | cross-on |
High Tide | 2:52PM0.65m | 00:49AM0.31m | 3:19PM0.66m | 1:31AM0.33m | 3:44PM0.66m | 2:12AM0.34m | 4:07PM0.66m | 2:57AM0.35m | 4:27PM0.64m | 3:46AM0.36m | 4:44PM0.61m | 4:42AM0.37m | 4:58PM0.57m | ||||||||
Low Tide | 9:22PM0.23m | 7:26AM-0.05m | 9:42PM0.21m | 7:59AM-0.05m | 10:06PM0.20m | 8:32AM-0.04m | 10:31PM0.18m | 9:04AM-0.01m | 10:57PM0.16m | 9:37AM0.05m | 11:22PM0.13m | 10:12AM0.11m | 11:50PM0.10m | ||||||||
 | |  | | |  |  |  | | | |  | | | | | | | | |  | |
 | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — |
mm | — | — | 2 | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 24 | 24 | 27 | 26 | 29 | 29 | 28 | 29 | 27 | 25 | 25 | 25 | 23 | 21 | 21 | 21 | 21 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 13 | E 13 | E 13 | E 12 | ENE 11 | ENE 9 | ENE 9 | SSW 14 | SSW 13 | SSW 13 | E 16 | E 15 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 | E 13 |
| kJ | 640 | 690 | 1275 | 1359 | 1292 | 883 | 674 | 453 | 66 | 60 | 59 | 80 | 157 | 150 | 150 | 199 | 202 | 196 | 191 | 198 | 89 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | NNE 10 | S 14 | S 14 | NNE 6 | S 15 | S 14 | SW 19 | SW 18 | N 9 | S 13 | N 8 | N 8 | N 8 | SSW 14 | SSW 14 | N 10 | N 9 | N 8 | N 8 |
| kJ | 73 | 42 | 60 | 32 | 32 | 110 | 67 | 65 | 15 | 12 | 15 | 30 | 13 | 12 | 11 | 19 | 18 | 17 | 14 | 13 | 12 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | S 14 | S 10 | SSE 10 | SSW 13 | — | S 20 | S 13 | N 9 | E 17 | N 9 | S 12 | S 12 | S 12 | N 8 | N 8 | SSW 14 | SSW 14 | SW 13 | S 13 |
| kJ | 2 | 2 | 37 | 7 | 9 | 17 | — | 7 | 3 | 7 | 24 | 14 | 27 | 26 | 11 | 5 | 4 | 20 | 19 | 7 | 14 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NNE 7 | NNE 9 | NNE 7 | — | — | S 3 | ENE 8 | E 8 | E 8 | E 7 | E 8 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 301 | 255 | 173 | 249 | 154 | — | — | 2 | 373 | 272 | 300 | 348 | 496 | 537 | 680 | 754 | 867 | 956 | 642 | 597 | 499 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 44 | 15 | 15 | 21 | 7 | 0 | 5 | 14 | 9 | 44 | 45 | 51 | 55 | 117 | 146 | 118 | 118 | 50 | 57 | 46 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Waimanalo Surf forecast
The above surf forecast table for Waimanalo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waimanalo can be found by selecting the local surf guide option on the grey menu. Our Waimanalo 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 (Waimanalo) 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 Waimanalo 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.
Waimanalo is 7 km (4 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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