Surf Forecasts:
Waimanalo surf forecast from 19 Jul 2026:
- Most powerful swell: Friday 24 Jul, 8PM (local time) - 7ft (2.2m), 7s period, ENE swell with 528 kJ wave energy.
Best Forecast Surf Conditions for Waimanalo this week:
The most powerful waves expected at Waimanalo in the next 16 days are 2.2m 7s and forecast to arrive on Friday (Jul 24) 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 16s period and expected on Monday (Jul 20) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Fri 24th Jul) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Waimanalo over the next 16 days.
The Lowdown
Alright, let me level with you. I’ve looked at every single day in this 16-day window, and I gotta tell you, it’s a tough stretch for us here at Waimanalo. The numbers just don’t line up for a good paddle. I'm not seeing a single solid recommendation in the whole run. That’s a blank from now, July 18th, all the way through to August 2nd.
The issue is the wind. It’s hammering us from the ENE almost the entire time, mostly onshore or cross-onshore, with speeds between 15 and 25 mph. That’s gonna chop everything up. Even when we get a little push in the swell – like around the 24th to 26th when the combined energy climbs into the 400s and even up to 933 – the conditions are still tagged as "poor surf conditions." The swell direction is also coming from the ENE and NE, which is fine for the exposure here, but with that wind on top of it, it’s a mess.
For a couple of days around the 26th and 27th, we see a shift in the swell direction to the east, and the period gets long, up to 15-16 seconds. That’s groundswell energy, and the combined energy jumps to four digits (1181, 1186, 1103), which is strong. But the call is still "poor surf conditions." The wind is still onshore, and a long period swell like that at a beach break can break a bit too straight, making it tricky. The water temp is sitting at 80°, which is about normal for this time of year, nothing unusual there.
Look, it’s a desert. A full 16 days with nothing to get excited about. For a spot that’s fairly consistent, this is a real bummer. The only thing I can say is that when the trade winds back off, this place can fire. Keep an eye on it, because forecasts can change, but for now, leave the boards at home. If you’re still itching for the water, the setup looks more interesting for kite surfing than paddle surfing, given the strong, consistent cross-onshore winds and the size of the swell.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 25°C on Sat afternoon, min 24°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Tue afternoon, min 24°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 426 | 394 | 273 | 284 | 212 | 263 | 279 | 191 | 128 | 140 | 195 | 132 | 192 | 247 | 265 | 317 | 414 | 344 | 459 | 452 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | on | on | on | cross-on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | on | on | cross-on |
High Tide | 5:55PM0.57m | 7:07AM0.34m | 6:08PM0.51m | 9:13AM0.37m | 6:04PM0.45m | 11:19AM0.44m | 4:59PM0.41m | 12:21PM0.51m | 12:58PM0.56m | 1:29PM0.59m | ||||||||||
Low Tide | 00:51AM0.11m | 11:40AM0.20m | 1:25AM0.09m | 12:37PM0.29m | 2:03AM0.07m | 3:19PM0.35m | 2:49AM0.05m | 3:43AM0.04m | 4:39AM0.02m | |||||||||||
 |  | | | | |  |  | | |  |  | | | | | | | | | |
 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — |
 | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — |
mm | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 23 | 23 | 22 | 23 | 24 | 24 | 24 | 25 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 12 | SSW 12 | NNE 8 | NNE 8 | S 16 | S 16 | S 15 | S 14 | S 14 | E 13 | E 12 | S 13 | E 13 | S 12 | S 13 | SSW 18 | ENE 10 | SSW 17 | SSW 16 |
| kJ | 39 | 30 | 15 | 12 | 47 | 47 | 81 | 107 | 103 | 97 | 84 | 103 | 54 | 158 | 44 | 55 | 112 | 34 | 59 | 53 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | SE 9 | S 19 | S 19 | S 18 | S 13 | SW 18 | E 12 | E 12 | E 14 | S 14 | SSE 13 | SSW 23 | S 13 | SSW 20 | SSW 20 | S 13 | SSW 18 | S 12 | SSW 20 |
| kJ | 14 | 3 | 29 | 27 | 55 | 31 | 12 | 12 | 25 | 37 | 91 | 60 | 107 | 52 | 77 | 75 | 31 | 61 | 25 | 82 |
Swell 3 Height (m) Direction Period (s) | SE 9 | S 21 | S 6 | SSW 12 | S 11 | SW 18 | E 13 | SW 16 | E 15 | E 11 | S 26 | S 11 | N 11 | SSW 22 | NNW 10 | NNW 10 | S 11 | S 12 | SSW 21 | S 12 |
| kJ | 3 | 8 | 1 | 15 | 10 | 13 | 3 | 11 | 17 | 22 | 53 | 20 | 10 | 91 | 10 | 9 | 20 | 26 | 44 | 25 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 8 |
| kJ | 426 | 394 | 273 | 284 | 212 | 263 | 279 | 191 | 128 | 140 | 195 | 132 | 192 | 247 | 265 | 317 | 414 | 344 | 459 | 452 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 52 | 46 | 44 | 45 | 16 | 44 | 50 | 15 | 44 | 44 | 44 | 44 | 44 | 44 | 50 | 52 | 50 | 50 | 52 | 44 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Waimanalo surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest