Surf Forecasts:
Ranches surf forecast from 10 Aug 2026:
- Best quality surf: Monday 10 Aug, 5AM (local time) - 2.5ft (0.8m), 6s period, NE swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 2AM (local time) - 10ft (3.0m), 8s period, NNE swell with 1,056 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 5AM (local time) - 2.5ft (0.8m), 6s period with NE swell.
Best Forecast Surf Conditions for Ranches this week:
The surf forecast for Ranches over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 10) at 5AM. The primary swell is predicted to be 0.8m and 6s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ranches in the next 16 days are 3.0m 8s and forecast to arrive on Monday (Aug 17) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 14s period and expected on Monday (Aug 17) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 10th Aug) | 2.5ft (0.8m) 6s |
| Best Surf | 5AM (Mon 10th Aug) | 2.5ft (0.8m) 6s |
| Most Powerful | 2AM (Mon 17th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
Howdy folks, Rusty here, checking in with the long-range forecast for our little slice of paradise. We've got a bit of a wait on our hands, but there's some light at the end of the tunnel.
Right now, and for the next several days, we're staring down a flat spell. The swell energy is weak, and conditions are mostly poor. It's a classic summer lull, and honestly, you can leave the boards in the garage for the better part of two weeks.
The first real glimmer of hope shows up on Monday, August 24th, in the afternoon. A new north-northeast swell starts to fill in, with waves around 3.6ft from the NE. The period is a solid 11 seconds, which means some decent energy. The wind will be moderate offshore and clean from the NE at 15 mph. This is the standout of the outlook, and it's worth circling on the calendar. The combined swell energy hits 286, a moderate reading, but it's the best we've seen by a mile.
Before that, there are a couple of days where it might be worth a paddle if you're desperate. Sunday, August 23rd has a little pulse from the SW, with a very long 14-second period. The morning shows 2ft and the afternoon bumps to 2.3ft, with clean offshore winds. The energy is there in the period, but the height is tiny. It's more of a longboard or a swim.
Wednesday, August 19th is another maybe-day. The morning is small (2.6ft, NE) with clean cross-offshore winds, but the afternoon brings a shift: a 1.6ft SW groundswell with a long 16-second period and moderate offshore wind from the ENE. That long period is promising, but it's a whisper. The combined energy (184) is moderate, but the size is very marginal.
A word to the wise: when the swell does show up on the 24th, it's going to be clean power. For the beginners, keep an eye on that 3.6ft mark. It might feel a bit much if you're not used to it. As for the break itself, Ranches is a reef that can handle a good swell, and with that NE direction, it should line up nicely. Keep in mind, crowds are sometimes an issue here, so get there early.
Hang tight. The waiting game is almost over.
Short Range ForecastMostly dry. Warm (max 29°C on Mon morning, min 24°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Thu morning, min 24°C on Wed night). Winds increasing (light winds from the ENE on Wed night, fresh winds from the NNE by Sat afternoon). | ||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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) | NNW 10 | NE 7 | SSW 15 | NE 5 | SSW 15 | NE 7 | S 20 | S 18 | N 12 | WNW 12 | W 12 | W 12 | NE 7 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 33 | 43 | 0 | 17 | 0 | 35 | 0 | 0 | 102 | 30 | 25 | 11 | 85 | 94 | 102 | 102 | 152 | 174 | 211 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | glassy | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 2:22AM0.19m | 3:14PM0.77m | 3:15AM0.23m | 3:55PM0.76m | 4:03AM0.28m | 4:33PM0.72m | 4:50AM0.33m | 5:08PM0.66m | 5:37AM0.37m | 5:42PM0.59m | 6:26AM0.41m | 6:14PM0.50m | |||||||
Low Tide | 9:58PM0.08m | 7:38AM-0.02m | 10:28PM0.06m | 8:33AM-0.02m | 10:58PM0.05m | 9:26AM-0.00m | 11:26PM0.04m | 10:16AM0.03m | 11:54PM0.04m | 11:07AM0.08m | 00:21AM0.04m | 12:01PM0.14m | 00:48AM0.05m | ||||||
 |  | | |  | | | | | | | | | | | | | |  | |
 | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — |
 | 7:07 | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 29 | 29 | 27 | 28 | 29 | 26 | 27 | 28 | 25 | 28 | 28 | 26 | 27 | 28 | 26 | 27 | 27 | 25 |
Feels °C | 27 | 31 | 31 | 28 | 30 | 30 | 26 | 28 | 29 | 24 | 26 | 25 | 26 | 24 | 25 | 25 | 25 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | NE 7 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | S 13 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 |
| kJ | 288 | 43 | 234 | 240 | 222 | 269 | 317 | 289 | 392 | 1029 | 868 | 773 | 636 | 503 | 496 | 311 | 280 | 219 | 219 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 15 | SSW 12 | NE 5 | ENE 7 | SSE 9 | S 20 | S 18 | S 18 | WNW 12 | ESE 7 | W 12 | W 11 | W 12 | SSW 18 | W 11 | ESE 12 | ESE 13 | E 13 |
| kJ | 56 | 186 | 45 | 17 | 31 | 30 | 373 | 509 | 741 | 28 | 10 | 11 | 10 | 11 | 30 | 21 | 89 | 101 | 121 |
Swell 3 Height (m) Direction Period (s) | NNW 10 | SSW 12 | SSE 9 | SSE 9 | SSE 9 | S 21 | SE 9 | SE 8 | SW 18 | SE 9 | W 12 | NNW 8 | NNW 7 | NNW 7 | NNW 8 | ESE 12 | W 11 | S 16 | S 18 |
| kJ | 33 | 81 | 34 | 32 | 32 | 79 | 19 | 18 | 12 | 13 | 25 | 6 | 5 | 5 | 6 | 27 | 22 | 43 | 99 |
Wind waves Height (m) Direction Period (s) | NE 5 | — | NE 6 | E 8 | — | NE 7 | ENE 6 | NE 6 | N 12 | NE 6 | NE 5 | NE 6 | NE 7 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 |
| kJ | 34 | — | 31 | 114 | — | 35 | 26 | 39 | 102 | 30 | 41 | 56 | 85 | 94 | 102 | 102 | 152 | 174 | 211 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 2 | 153 | 0 | 153 | 16 | 0 | 16 | 153 | 26 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ranches 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 Ranches Surf forecast
The above surf forecast table for Ranches provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ranches can be found by selecting the local surf guide option on the grey menu. Our Ranches 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 (Ranches) 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 Ranches 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.
Ranches is 22 km (14 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.
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