Surf Forecasts:
Ranches surf forecast from 24 Aug 2026:
- Best quality surf: Monday 24 Aug, 5AM (local time) - 3.5ft (1.0m), 6s period, NE swell with offshore winds.
- Most powerful swell: Monday 31 Aug, 2AM (local time) - 3.5ft (1.0m), 7s period, NNE swell with 102 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 5AM (local time) - 3.5ft (1.0m), 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 24) at 5AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.5m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ranches in the next 16 days are 1.0m 7s and forecast to arrive on Monday (Aug 31) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 17s period and expected on Thursday (Aug 27) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 24th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 5AM (Mon 24th Aug) | 3.5ft (1.0m) 6s |
| Most Powerful | 2AM (Mon 31st Aug) | 3.5ft (1.0m) 7s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the line for the 16-day window.
Right off the bat, I gotta be straight with you – the first few days are a bit of a letdown. We’ve got a tiny window of surf on Monday the 24th, but it’s nothing to write home about. The real story here is a long, drawn-out stretch of small, average waves with mostly clean but consistent offshore winds, and nothing getting the heart pumping until we get deep into the second week.
So, Monday morning the 24th at Ranches, you’ll find a small 3ft NE windswell with a short 6-second period. The energy is weak, only a 117 in the combined swell energy department. The wind is offshore from the ENE, so it’s tidy, but the waves are just ordinary. The afternoon blows out to a 0 score, so don’t bother. After that, we’re looking at a massive gap. From Tuesday the 25th all the way through to Thursday the 28th, it’s a total washout – zero surf on offer. It’s a proper dry spell.
Friday the 28th morning sees a tiny pulse of 3ft NE windswell (6 seconds) come back, with a combined energy of just 60. The wind is offshore from the ENE, so it’s clean, but the waves are small and weak. Saturday the 29th and Sunday the 30th are much the same story – 3ft, short period, with consistent offshore winds. It’s surfable if you’re desperate, but it’s all very ordinary. The water temperature is about average for the time of year, so no surprises there.
The standout option, and the only thing I’d circle on the calendar, is Monday the 7th of September. We get a proper injection of energy. The swell jumps to 4ft from the NE, but the period stretches out to a nice 10 seconds, putting the combined energy up to a solid 372 (moderate). The wind is light from the west, but it’s onshore, so the surf might be a bit bumpy. It’s a real mixed bag – the wave state is described as “unknown” for quality, so it’s a gamble. This is a bigger swell, not for beginners, and the onshore wind could mess it up, but the energy is there. It’s the most interesting day in the whole run, but with the wind being onshore, it’s a bit of a wildcard.
The rest of the week after that is a mix of small, short-period windswell and clean but light winds, with nothing really firing. The 7th is the only day that has that moderate energy, but the wind is a letdown. The 8th of September shows a lot of energy (414) but the swell is 4ft from the NE with a cross-onshore wind – that’s a messy look for Ranches, and probably better suited for a kite session than a pure paddle-in wave.
Overall, it’s a quiet period with one possible, but shaky, highlight on the 7th. Keep an eye on the forecasts for that day, but don’t hold your breath.
Rusty
Short Range ForecastMostly dry. Warm (max 30°C on Mon afternoon, min 25°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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) | NE 6 | NW 11 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | S 18 | S 19 | NW 9 | S 17 | NE 7 | NE 6 | NW 9 | WNW 9 | NE 6 | NE 6 | NE 6 |
Wave Graph | |||||||||||||||||||
95 | 62 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 59 | 47 | 13 | 8 | 64 | 93 | 66 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 2:06AM0.23m | 2:46PM0.64m | 2:41AM0.26m | 3:16PM0.65m | 3:15AM0.30m | 3:44PM0.65m | 3:51AM0.34m | 4:13PM0.63m | 4:28AM0.38m | 4:40PM0.59m | 5:07AM0.43m | 5:09PM0.54m | |||||||
Low Tide | 9:36PM0.14m | 7:17AM0.08m | 9:53PM0.13m | 8:01AM0.06m | 10:11PM0.11m | 8:42AM0.05m | 10:30PM0.10m | 9:23AM0.06m | 10:50PM0.08m | 10:04AM0.07m | 11:12PM0.07m | 10:49AM0.10m | 11:35PM0.05m | ||||||
— | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — | |
6:57 | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 29 | 30 | 27 | 28 | 29 | 26 | 27 | 28 | 25 | 27 | 28 | 25 | 27 | 28 | 26 | 27 | 28 | 25 |
Feels °C | 26 | 31 | 31 | 29 | 29 | 29 | 26 | 26 | 26 | 25 | 27 | 28 | 24 | 27 | 26 | 25 | 27 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 16 | SSW 15 | SSW 14 | S 18 | S 19 | S 17 | S 17 | S 16 | S 14 | S 14 | S 14 | S 13 | S 13 | S 12 |
186 | 166 | 156 | 140 | 119 | 196 | 167 | 215 | 395 | 365 | 710 | 540 | 582 | 334 | 324 | 293 | 219 | 165 | 138 | |
Swell 2 Height (m) Direction Period (s) | NW 11 | SSE 12 | SE 8 | SSE 7 | SSW 16 | SSW 12 | SSW 12 | S 18 | SSW 13 | SSW 13 | S 12 | S 12 | SE 6 | SSW 11 | SSE 7 | SW 19 | SW 18 | ESE 7 | SSW 17 |
63 | 83 | 33 | 30 | 147 | 81 | 81 | 165 | 135 | 137 | 101 | 72 | 11 | 39 | 9 | 91 | 80 | 20 | 186 | |
Swell 3 Height (m) Direction Period (s) | SSE 13 | NW 11 | SSE 12 | SSW 17 | SSE 7 | SSE 6 | S 18 | SSE 12 | SE 6 | S 17 | NW 9 | ESE 6 | NW 9 | NW 9 | NW 9 | WNW 9 | SSE 5 | SSW 17 | E 13 |
96 | 55 | 46 | 94 | 17 | 16 | 167 | 55 | 10 | 147 | 14 | 8 | 13 | 13 | 13 | 8 | 2 | 115 | 13 | |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | NE 5 | NE 5 | NE 6 | NE 4 | NE 7 | NE 6 | NE 6 | ENE 6 | NE 6 | NE 6 | NE 6 |
95 | 62 | 65 | 33 | 55 | 39 | 43 | 36 | 32 | 25 | 31 | 16 | 59 | 47 | 80 | 69 | 64 | 93 | 66 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 6 | 6 | 6 | 2 | 6 | 2 | 2 | 2 | 2 | 3 | 0 | 0 | 2 | 6 | 0 | 0 | 0 |
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)
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.











