
Surf Forecasts:
Ranches surf forecast from 3 Aug 2026:
- Best quality surf: Saturday 8 Aug, 5PM (local time) - 1.5ft (0.5m), 18s period, SW swell with offshore winds.
- Most powerful swell: Saturday 8 Aug, 8AM (local time) - 1.5ft (0.5m), 19s period, SW swell with 175 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 8PM (local time) - 4.5ft (1.3m), 7s 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 Sunday (Aug 02) at 8PM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 0.3m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ranches in the next 16 days are 0.5m 19s and forecast to arrive on Saturday (Aug 08) at 8AM. 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 7s period and expected on Saturday (Aug 08) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 2nd Aug) | 4.5ft (1.3m) 7s |
| Best Surf | 5PM (Sat 8th Aug) | 1.5ft (0.5m) 18s |
| Most Powerful | 8AM (Sat 8th Aug) | 1.5ft (0.5m) 19s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down the same outlook but in feet and Fahrenheit.
The water temp is 80°, which is about normal for the time of year.
The first real day to look at is Sunday afternoon, August 2nd, at Ranches. It’s a reef break for advanced surfers, and it’s fairly consistent. We’ve got a 4ft swell out of the NE with a short period of 7 seconds, and a moderate offshore wind from the NE keeping it clean. The combined wave energy is moderate (267). It’s a start, but that short period means the waves won’t have much push.
From Monday, August 3rd, through to Saturday, August 8th, it’s a flat spell. Swell drops to 2ft or less, periods are short, and the energy is weak. There’s a glassy morning on Tuesday, August 4th, but with only 2ft of swell, it’s not worth a paddle. That’s a gap of about five days with nothing doing.
Then things get interesting. From Saturday afternoon, August 8th, we start seeing a long-period groundswell. The swell is only 2ft, but the period jumps to 18 seconds from the SW, and the energy is at 209 (moderate). That’s a very long period, so those waves will have serious shape and power, perfect for a reef.
The real build-up starts Thursday, August 13th. Thursday afternoon shows a 2ft swell from the W with a 16-second period and energy at 370 (moderate). Friday, August 14th, is even better: 2ft from the W, 15-second period, energy at 393 (moderate). The wind is a solid offshore breeze.
The standout is the weekend of August 15th and 16th. Saturday morning, August 15th, hits with a 5ft swell from the NE with an 8-second period. Energy jumps to 424 (strong). By Saturday afternoon, it’s a 2ft W swell with a 14-second period. The real peak is Sunday afternoon, August 16th, with a 5ft swell from the NE, 8-second period, and energy at 427 (strong). The wind is a moderate offshore. Sunday morning also shows 5ft. At 5ft to 5ft, it’s getting too big for beginners, but for the advanced crew, that’s a proper session. The crowd is "sometimes" so you might see a few others.
Monday, August 17th, stays solid with 5ft to 5ft, but the wind is a fresh 30 km/h offshore. That’s strong, but it’ll keep the faces glassy. Over 5ft, definitely for the experienced crew.
So, bottom line: The early part is a washout. Don’t bother. The second week, especially the weekend of August 15th and 16th, is the real deal. That’s your true standout. The long-period west swells mid-week are clean and have shape, but the NE swell on the weekend brings more size and power. If you’re an advanced surfer, that’s your window.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 28°C on Mon afternoon, min 25°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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) | NE 7 | NE 7 | NNE 6 | NE 7 | SSW 12 | NNE 6 | N 5 | SSW 15 | SSW 16 | NE 10 | SW 15 | NE 6 | NE 8 | NE 8 | NE 5 | SW 14 | SSW 19 | SW 18 | SW 18 | SSW 18 |
Wave Graph | ||||||||||||||||||||
169 | 118 | 28 | 63 | 0 | 17 | 14 | 0 | 0 | 57 | 107 | 11 | 41 | 28 | 8 | 91 | 0 | 162 | 155 | 0 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | off | glassy | off | off | cross-on | cross-on | off | glassy | cross-off | off | off | off | off | off | off | off |
High Tide | 6:44PM0.49m | 8:07AM0.39m | 7:15PM0.41m | 9:16AM0.44m | 7:47PM0.33m | 10:31AM0.50m | 8:27PM0.26m | 11:44AM0.57m | 9:50PM0.19m | 12:47PM0.64m | 11:52PM0.16m | 1:42PM0.70m | 1:19AM0.16m | |||||||
Low Tide | 1:33AM0.04m | 1:32PM0.22m | 2:04AM0.04m | 3:10PM0.27m | 2:41AM0.03m | 5:37PM0.27m | 3:28AM0.03m | 7:57PM0.21m | 4:26AM0.02m | 8:52PM0.16m | 5:32AM0.01m | 9:27PM0.12m | ||||||||
— | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 27 | 28 | 25 | 27 | 26 | 26 | 26 | 27 | 26 | 27 | 28 | 27 | 27 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 25 | 25 | 27 | 28 | 24 | 29 | 28 | 28 | 28 | 29 | 28 | 30 | 29 | 27 | 29 | 29 | 28 | 30 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | NNE 6 | SSW 12 | ENE 8 | NNE 6 | SSW 12 | SSW 11 | SSW 11 | NE 10 | SW 15 | NE 6 | NE 8 | SSW 14 | SSW 14 | NE 9 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
85 | 42 | 28 | 50 | 26 | 17 | 75 | 69 | 38 | 57 | 107 | 11 | 41 | 138 | 76 | 39 | 108 | 133 | 102 | 99 | |
Swell 2 Height (m) Direction Period (s) | N 9 | SSW 13 | ENE 8 | SW 13 | SSW 12 | SSW 12 | N 5 | ENE 11 | ENE 10 | SSW 15 | NE 5 | SSW 14 | SSW 14 | NE 8 | SSE 11 | SW 14 | SSW 19 | SW 18 | SW 18 | SSW 18 |
13 | 34 | 38 | 41 | 82 | 55 | 14 | 45 | 38 | 88 | 14 | 81 | 80 | 28 | 37 | 91 | 148 | 162 | 155 | 204 | |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SE 6 | SW 13 | SE 7 | SE 9 | ENE 11 | ENE 11 | SSW 15 | SSW 16 | SSW 11 | SSE 12 | NE 8 | NNW 8 | SSE 11 | NE 5 | SSE 11 | S 11 | SSE 9 | SSE 10 | SSE 10 |
5 | 5 | 42 | 7 | 22 | 42 | 46 | 87 | 94 | 46 | 49 | 18 | 20 | 40 | 8 | 37 | 21 | 29 | 36 | 33 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | — | NE 7 | NNE 5 | — | — | NNE 5 | — | — | — | — | — | E 5 | — | — | ENE 6 | NE 7 | NE 7 | ENE 7 |
169 | 118 | — | 63 | 23 | — | — | 16 | — | — | — | — | — | 13 | — | — | 55 | 36 | 54 | 83 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 6 | 0 | 2 | 2 | 2 | 2 | 3 | 10 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 0 | 0 | 2 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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.











