Surf Forecasts:
Waimanalo surf forecast from 4 Jul 2026:
- Most powerful swell: Monday 6 Jul, 2PM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 575 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 Monday (Jul 06) at 2PM. 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 20s period and expected on Saturday (Jul 04) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Mon 6th 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 folks, Rusty here. Let’s be straight with you – this is a tough one for Waimanalo. The whole 16-day window is a bust. There’s no surf to recommend, just a long stretch of poor conditions.
Starting from Friday, July 3rd, right through to Saturday, July 18th, we’re locked into a pattern of onshore and cross-onshore wind. It’s relentless. The wind is coming from the ENE and NE, blowing at 18 to 22 mph, which just shreds any chance of clean waves. The swell is all short-period windswell, mostly 4 ft to 7 ft, with a period of just 6 to 8 seconds. That’s weak, choppy, and completely unsurfable. The combined swell energy is moderate at best, peaking at 544 on Monday, July 6th, but with that wind, it’s just a mess of whitewater.
The water temperature is sitting at 79° and that’s about normal for this time of year, so that’s not the problem. The problem is the wind. It’s blowing onshore or cross-onshore for the entire outlook. The optimum swell direction for Waimanalo is from the NE, but the wind is coming from the same direction, killing any chance of a clean face. There’s no standout, no hidden gem, no window of opportunity. This is a complete blank run.
For a spot that’s usually fairly consistent, this is a rough stretch. It’s the kind of setup that’s more interesting for kite surfers than paddle surfers. We just have to hope the charts change. Stay tuned.
Rusty
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 25°C on Fri afternoon, min 24°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 25°C on Wed afternoon, min 24°C on Mon afternoon). Mainly strong winds. | ||||||||||||||||||||
Fri 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 347 | 330 | 356 | 365 | 382 | 362 | 376 | 482 | 537 | 522 | 487 | 480 | 495 | 482 | 400 | 334 | 394 | 293 | 277 | 325 | 209 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | on | on | cross-on | on | on | cross-on | on |
High Tide | 5:39PM0.61m | 4:22AM0.27m | 6:00PM0.58m | 5:41AM0.27m | 6:18PM0.54m | 7:34AM0.29m | 6:34PM0.50m | 10:04AM0.36m | 6:48PM0.45m | 11:36AM0.46m | 6:52PM0.41m | 12:27PM0.56m | 1:10PM0.65m | ||||||||
Low Tide | 00:39AM0.17m | 10:19AM0.04m | 1:11AM0.15m | 10:54AM0.11m | 1:44AM0.11m | 11:39AM0.20m | 2:21AM0.07m | 1:09PM0.29m | 3:04AM0.02m | 4:21PM0.34m | 3:52AM-0.03m | 4:44AM-0.07m | |||||||||
 |  |  | | |  | |  | | |  | | | | | | | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 |
 | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | 7:15 |
mm | — | — | — | — | — | 1 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 24 |
Feels °C | 23 | 22 | 21 | 22 | 21 | 22 | 20 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 22 | 21 | 22 | 23 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | NW 12 | SSW 21 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 12 | S 12 | S 12 | S 12 |
| kJ | 55 | 24 | 89 | 128 | 123 | 104 | 102 | 87 | 84 | 76 | 71 | 70 | 66 | 63 | 61 | 35 | 34 | 27 | 27 | 11 | 11 |
Swell 2 Height (m) Direction Period (s) | NW 14 | SSW 16 | NW 12 | NW 12 | ESE 9 | NW 11 | NNW 11 | NW 10 | SE 9 | SE 9 | S 18 | S 8 | S 10 | S 10 | S 18 | S 8 | S 8 | S 8 | SSE 8 | S 15 | SE 8 |
| kJ | 29 | 25 | 24 | 23 | 17 | 19 | 12 | 4 | 3 | 3 | 6 | 1 | 2 | 2 | 6 | 1 | 1 | 1 | 6 | 4 | 2 |
Swell 3 Height (m) Direction Period (s) | SW 12 | S 23 | SSW 16 | SSW 15 | NW 12 | SSW 14 | SW 13 | SSW 13 | NW 10 | NW 10 | S 8 | N 9 | N 9 | — | W 18 | S 18 | — | S 16 | S 16 | — | SW 21 |
| kJ | 6 | 41 | 49 | 22 | 21 | 20 | 7 | 17 | 4 | 4 | 1 | 2 | 2 | — | 6 | 6 | — | 5 | 5 | — | 18 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 347 | 330 | 356 | 365 | 382 | 362 | 376 | 482 | 537 | 522 | 487 | 480 | 495 | 482 | 400 | 334 | 394 | 293 | 277 | 325 | 209 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 50 | 44 | 44 | 45 | 44 | 50 | 52 | 46 | 116 | 117 | 46 | 50 | 117 | 45 | 50 | 50 | 44 | 44 | 56 | 44 | 50 |
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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