Surf Forecasts:
Waimanalo surf forecast from 6 Jul 2026:
- Most powerful swell: Tuesday 7 Jul, 8AM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 632 kJ wave energy.
Best Forecast Surf Conditions for Waimanalo this week:
The most powerful waves expected at Waimanalo in the next 16 days are 2.3m 8s and forecast to arrive on Tuesday (Jul 07) at 8AM. 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 16s period and expected on Monday (Jul 06) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Tue 7th Jul) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Waimanalo over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here, giving you the straight talk for your local lineup.
I’ve got to be straight with you—Waimanalo is looking grim for the foreseeable future. You’re looking at a long stretch of nothing worth paddling out for. The wind is blasting from the ENE at 18 to 25 mph, mostly onshore, and the water’s getting torn up. Swell is running 5ft to 8ft, but with periods barely hitting 7 or 8 seconds, and that stiff breeze just wrecking any chance of a smooth wave. The combined swell energy is moderate, with numbers like 472 (Monday), 611 (Tuesday), and even a late spike to 656, but it’s all for nothing with that onshore mess. Water temp is 79°, just 0.7° off normal, so it’s average for the season.
There’s a gap from Monday, July 6, all the way to Tuesday, July 21. That’s over two weeks of poor surf. Every reading says “poor surf conditions” and scores a big fat zero. There’s a tiny bright spot on Saturday the 18th with the period jumping to 9 seconds, but with 18 mph onshore wind and a cross-on angle, it’s still choppy. Honestly, this setup looks better for kite surfing than paddle surfing—the wind is steady and strong—but for us wave chasers, it’s a bust.
Waimanalo is a beginner spot and usually fairly consistent, but this ENE wind and swell from the same direction (ENE) just makes everything messy. The break is exposed to that swell, and the ideal direction is NE, so we’re close but no cigar. Crowds can show up sometimes, but not now—nobody’s gonna be out in this slop. No standout days, no hidden gems. Just a long, quiet run.
Don’t lose hope, though. It never stays this bad forever. But for now, kick back and wait.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Warm (max 25°C on Mon afternoon, min 24°C on Mon morning). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 25°C on Thu morning, min 24°C on Thu morning). Mainly strong winds. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 465 | 491 | 508 | 606 | 480 | 542 | 428 | 417 | 456 | 440 | 390 | 444 | 456 | 542 | 542 | 516 | 475 | 475 | 522 | 545 | 441 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | on | on | cross-on | on | on | on | on | on | cross-on |
High Tide | 6:34PM0.50m | 10:04AM0.36m | 6:48PM0.45m | 11:36AM0.46m | 6:52PM0.41m | 12:27PM0.56m | 1:10PM0.65m | 1:52PM0.71m | 10:48PM0.30m | 2:34PM0.75m | 00:11AM0.30m | ||||||||||
Low Tide | 11:39AM0.20m | 2:21AM0.07m | 1:09PM0.29m | 3:04AM0.02m | 4:21PM0.34m | 3:52AM-0.03m | 4:44AM-0.07m | 5:35AM-0.11m | 9:11PM0.25m | 6:26AM-0.14m | 9:32PM0.24m | ||||||||||
 | |  | | |  | | | | | | |  | |  |  | | | | | | |
 | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — |
mm | — | — | 1 | — | — | — | — | — | 1 | — | — | 3 | 2 | 1 | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 24 |
Feels °C | 20 | 21 | 20 | 19 | 20 | 20 | 22 | 22 | 20 | 22 | 22 | 21 | 22 | 23 | 21 | 21 | 21 | 21 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 19 | SSW 18 | SSW 18 | SW 16 | SW 16 | SW 16 |
| kJ | 84 | 76 | 71 | 70 | 66 | 63 | 36 | 35 | 34 | 30 | 27 | 11 | 11 | 12 | 11 | 34 | 30 | 30 | 41 | 40 | 39 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | S 18 | N 9 | S 10 | S 10 | S 18 | SE 8 | S 9 | S 16 | S 16 | S 15 | SW 21 | SW 21 | SSW 19 | S 12 | S 12 | S 13 | SSE 13 | SSE 12 | SSE 12 |
| kJ | 3 | 3 | 6 | 2 | 2 | 2 | 6 | 3 | 2 | 5 | 5 | 4 | 18 | 17 | 37 | 11 | 11 | 13 | 16 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 9 | NW 9 | N 9 | — | — | S 18 | — | S 8 | S 9 | S 23 | S 8 | W 14 | S 15 | W 14 | S 14 | — | S 11 | — | SW 23 |
| kJ | 4 | 4 | 3 | 3 | 2 | — | — | 6 | — | 1 | 2 | 10 | 1 | 4 | 4 | 4 | 4 | — | 2 | — | 21 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 465 | 491 | 508 | 606 | 480 | 542 | 428 | 417 | 456 | 440 | 390 | 444 | 456 | 542 | 542 | 516 | 475 | 475 | 522 | 545 | 441 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 116 | 117 | 44 | 116 | 116 | 50 | 50 | 56 | 50 | 50 | 50 | 44 | 44 | 55 | 50 | 50 | 46 | 44 | 44 | 52 | 44 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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