
Surf Forecasts:
Waimanalo surf forecast from 22 Jul 2026:
- Most powerful swell: Monday 27 Jul, 8PM (local time) - 5.5ft (1.7m), 14s period, E swell with 1,127 kJ wave energy.
Best Forecast Surf Conditions for Waimanalo this week:
The most powerful waves expected at Waimanalo in the next 16 days are 1.7m 14s and forecast to arrive on Monday (Jul 27) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 13s period and expected on Wednesday (Jul 22) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Mon 27th Jul) | 5.5ft (1.7m) 14s |
Table - best surf conditions forecast for Waimanalo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s cut to the chase – this whole 16-day stretch at Waimanalo is a tough beat. The wind is the main problem, blowing out of the ENE almost constantly, keeping things messy. There’s no real standout session, so we’ll take it day by day.
Starting Wednesday July 22nd through the weekend, we’ve got steady ENE winds at 18 to 22 mph, mostly cross-onshore or onshore. The swell is all short-period windswell, around 7 seconds, with moderate wave energy. Heights are around 5 to 7 ft, but the quality is poor. The water temp is about average for this time of year, nothing unusual.
Things change a bit on Sunday July 26th afternoon. The swell shifts to the east, the period jumps to 15 seconds – that’s real groundswell. The energy is strong. But the wind is still onshore from the ENE at 18 mph, so it’s going to be a blown-out mess. That long period would be better for a point or reef break, but here at Waimanalo, it’s just lumpy.
Monday July 27th and Tuesday July 28th keep that east groundswell with periods of 13 to 14 seconds and strong energy. The wind eases a little, but it’s still onshore. The surf quality is still getting a zero.
Finally, on Wednesday July 29th morning, we get a tiny window. The wind drops to a gentle breeze from the NE at 9 mph, and the swell is still east at 6 ft with a 12-second period. Energy is strong. The forecast gives it a marginal rating. This is the only time in the whole 16 days that isn’t a complete loss. It’s not clean, but it’s the best you’ll get. After that, it’s right back to onshore junk and strong breezes through to August 6th.
So the honest truth: there is no good surf here. The one slightly better moment is Wednesday July 29th morning, but it’s a long shot. For a beginner, those 5 to 7 ft days with onshore wind are a tough paddle for not much reward. And with the wind howling like this, the whole setup looks more interesting for kite surfing than paddle surfing for most of the period.
Rusty out.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Warm (max 25°C on Wed morning, min 24°C on Wed night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sat night. Warm (max 25°C on Sat morning, min 24°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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) | ENE 7 | ENE 7 | E 12 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 15 | E 15 | E 15 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 |
Wave Graph | |||||||||||||||||||||
240 | 189 | 139 | 384 | 340 | 366 | 346 | 325 | 498 | 441 | 425 | 493 | 435 | 527 | 706 | 797 | 775 | 891 | 865 | 852 | 835 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | cross-on | on | on | cross-on | on | on | cross-on | on | on | on | on | on | on | on | on | on |
High Tide | 12:21PM0.51m | 12:58PM0.56m | 1:29PM0.59m | 1:57PM0.62m | 10:51PM0.28m | 2:25PM0.63m | 00:03AM0.30m | 2:52PM0.65m | 00:49AM0.31m | 3:19PM0.66m | 1:31AM0.33m | ||||||||||
Low Tide | 3:43AM0.04m | 4:39AM0.02m | 5:29AM-0.00m | 9:26PM0.24m | 6:12AM-0.02m | 9:10PM0.23m | 6:51AM-0.04m | 9:22PM0.23m | 7:26AM-0.05m | 9:42PM0.21m | |||||||||||
6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | |
mm | — | — | — | 1 | — | 1 | 1 | — | — | — | — | 2 | 1 | — | — | 1 | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 22 | 21 | 21 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 23 | 21 | 21 | 21 | 22 | 23 | 23 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 11 | E 12 | S 12 | S 13 | SSW 18 | SSW 18 | S 12 | SSW 16 | E 14 | SSW 19 | E 16 | E 15 | E 15 | E 15 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 |
103 | 92 | 139 | 44 | 55 | 66 | 104 | 25 | 52 | 62 | 115 | 176 | 435 | 527 | 706 | 797 | 775 | 891 | 865 | 852 | 835 | |
Swell 2 Height (m) Direction Period (s) | SSE 13 | SSE 13 | S 13 | SSW 20 | SSW 20 | S 13 | S 12 | SSW 17 | E 15 | SSW 19 | E 13 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 14 | NNE 9 |
59 | 58 | 52 | 77 | 75 | 31 | 46 | 59 | 42 | 125 | 54 | 103 | 90 | 85 | 83 | 73 | 42 | 41 | 36 | 32 | 132 | |
Swell 3 Height (m) Direction Period (s) | S 11 | S 10 | SSW 22 | NNW 10 | NNW 10 | S 11 | NNW 9 | SSW 21 | SSW 20 | SSW 16 | E 17 | E 12 | S 11 | S 11 | SE 11 | S 11 | S 10 | S 10 | S 10 | — | SSW 14 |
20 | 19 | 91 | 10 | 9 | 20 | 7 | 44 | 82 | 50 | 49 | 47 | 9 | 9 | 5 | 9 | 8 | 8 | 2 | — | 38 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 7 | ENE 7 | NE 7 | ENE 7 | NNE 7 | NNE 9 | NNE 7 | — |
240 | 189 | 137 | 384 | 340 | 366 | 346 | 325 | 498 | 441 | 425 | 493 | 368 | 382 | 362 | 242 | 274 | 142 | 165 | 86 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 50 | 45 | 44 | 52 | 52 | 45 | 50 | 55 | 44 | 50 | 116 | 15 | 46 | 52 | 44 | 44 | 50 | 17 | 15 | 17 | 15 |
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.










