
Surf Forecasts:
Ranches surf forecast from 17 Jul 2026:
- Best quality surf: Friday 17 Jul, 5AM (local time) - 2ft (0.6m), 14s period, W swell with offshore winds.
- Most powerful swell: Friday 17 Jul, 5AM (local time) - 2ft (0.6m), 14s period, W swell with 148 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 5AM (local time) - 2ft (0.6m), 14s period with W 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 Friday (Jul 17) at 5AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.8m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ranches in the next 16 days are 0.6m 14s and forecast to arrive on Friday (Jul 17) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 8s period and expected on Sunday (Jul 19) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 17th Jul) | 2ft (0.6m) 14s |
| Best Surf | 5AM (Fri 17th Jul) | 2ft (0.6m) 14s |
| Most Powerful | 5AM (Fri 17th Jul) | 2ft (0.6m) 14s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
Howdy, Rusty here, switching to feet and miles for you. Let's have a look at the next couple of weeks.
The standout session is hands down Friday morning, the 17th of July. The swell is a tiny 2 feet, but it's a long-period groundswell from the West with a 14-second period. The combined swell energy is a solid 201, so there's plenty of push for its size. The wind is glassy, from the ENE at just 3 mph, so the surface will be like a sheet of glass. This is the absolute pick of the forecast. Ranches is a reef, so that long-period groundswell will wrap in clean and offer up some well-shaped lines. The water temp is about average for this time of year, so it'll be a comfortable paddle. It's an advanced wave, but for those who know the reef, it's going to be a small but rippable session.
Friday afternoon turns a bit ordinary. The wind swings to the NE and picks up to 12 mph, staying offshore, but the conditions are a bit bumpier. It's rideable, but nothing to get excited about.
Saturday the 18th and Sunday the 19th see the swell drop. The morning of the 18th has a tiny 1 feet with clean offshore winds, while the 19th brings a short-period 3 feet from the NE. The energy is weak, and the period is a poor 6-7 seconds, so the waves will be fat and crumbly. Not a great look.
We then hit a major dry spell. From Monday the 20th through to Thursday the 23rd, the swell just disappears. There are a few weak, small pulses, but nothing worth paddling for. The 23rd and 24th actually show zero swell and flat conditions. It's a tough stretch.
The next sign of life comes on Saturday the 25th with a little 3 feet pulse from the NE, but the strong offshore wind at 16 mph in the afternoon chops it up. The morning is a marginal option with light winds, but the energy is still weak.
Sunday the 26th builds a bit, with 4 feet to 4 feet from the NE. The morning has moderate energy (155) and clean offshore winds, but the swell period is short at 8 seconds, so it won't be a classic. It's rideable, but nothing special. The afternoon gets too windy at 19 mph, making it messy.
The wind really becomes a problem from Monday the 27th onwards. We get consistent 4 feet from the NE, but the wind is cranking 16-19 mph, cross-offshore. The combined energy climbs into the 200s, but the chop will be terrible. This setup is more interesting for kite surfing than paddle surfing. The swell is too big for beginners and the conditions are just poor for a clean wave.
A brief reprieve shows up on Thursday the 30th. The morning has a tiny 3 feet, but the afternoon brings a surprise: a 2 feet swell from the SW with a very long 18-second period. The combined energy is 195, so it's got some punch. The wind is light offshore, so it could be a clean, glassy session with some long, walling lines at the reef. It's a proper groundswell, and those long-period swells are a treat at a reef like Ranches. It's a bit of a wildcard, so keep an eye on it.
Beyond that, the first of August looks flat again with weak energy and no real size. The long gap between quality sessions is a bummer, but that Friday morning the 17th is the one to circle. Small, but perfect.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Fri afternoon, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Mon afternoon, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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) | W 14 | W 14 | W 14 | W 13 | WNW 13 | WNW 13 | NE 7 | NE 6 | NE 7 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | SSW 22 |
Wave Graph | |||||||||||||||||||
200 | 144 | 140 | 90 | 57 | 57 | 46 | 51 | 60 | 45 | 54 | 64 | 37 | 37 | 47 | 55 | 38 | 35 | 0 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | off | off | off | off | off | cross-off | off | off | cross-off | glassy | off | cross-off | off | off | glassy | off | off |
High Tide | 7:01AM0.27m | 6:56PM0.58m | 8:04AM0.31m | 7:31PM0.49m | 9:13AM0.35m | 8:05PM0.40m | 10:24AM0.40m | 8:39PM0.31m | 11:33AM0.46m | 9:16PM0.24m | 12:32PM0.51m | 10:26PM0.19m | |||||||
Low Tide | 1:26AM0.01m | 12:02PM0.08m | 2:00AM0.01m | 1:04PM0.16m | 2:33AM0.02m | 2:21PM0.22m | 3:06AM0.03m | 4:10PM0.27m | 3:41AM0.04m | 6:38PM0.26m | 4:20AM0.05m | 8:43PM0.21m | |||||||
— | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
7:17 | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 29 | 26 | 27 | 28 | 25 | 27 | 28 | 25 | 27 | 28 | 25 | 27 | 28 | 25 | 27 | 28 | 25 |
Feels °C | 27 | 30 | 32 | 27 | 27 | 29 | 25 | 27 | 27 | 25 | 27 | 27 | 24 | 28 | 29 | 25 | 29 | 28 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | NE 7 | NE 7 | SSW 14 | SSW 13 | SSW 14 | NE 7 | SSW 13 | S 13 | SSW 11 | NE 7 | S 16 | NE 7 | S 14 | S 14 | S 13 | S 11 | NE 7 | S 13 |
178 | 57 | 57 | 189 | 141 | 210 | 46 | 125 | 126 | 71 | 54 | 325 | 37 | 329 | 298 | 273 | 110 | 35 | 209 | |
Swell 2 Height (m) Direction Period (s) | W 14 | W 14 | SSW 16 | NNE 7 | NNE 7 | NNE 8 | SSW 12 | SE 6 | S 19 | S 18 | S 16 | SW 18 | S 13 | NE 7 | SSW 16 | SSW 26 | S 13 | S 10 | SSW 22 |
200 | 144 | 196 | 47 | 28 | 51 | 121 | 9 | 110 | 154 | 193 | 81 | 121 | 37 | 103 | 224 | 128 | 104 | 480 | |
Swell 3 Height (m) Direction Period (s) | SSW 17 | SSW 16 | W 14 | W 13 | WNW 13 | WNW 13 | SSE 9 | S 19 | SE 6 | SW 19 | S 12 | SSE 6 | S 15 | SW 17 | SSE 6 | SW 15 | SSW 24 | SSW 23 | SSW 17 |
170 | 171 | 140 | 90 | 57 | 57 | 31 | 66 | 9 | 92 | 70 | 4 | 163 | 73 | 4 | 60 | 437 | 426 | 202 | |
Wind waves Height (m) Direction Period (s) | NE 7 | ENE 6 | ENE 6 | — | E 7 | ENE 7 | E 8 | NE 6 | NE 7 | NE 6 | E 8 | NE 7 | ENE 7 | ENE 7 | NE 7 | NE 7 | NE 7 | — | NE 6 |
65 | 64 | 66 | — | 45 | 86 | 223 | 51 | 60 | 45 | 121 | 64 | 94 | 67 | 47 | 55 | 38 | — | 40 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 2 | 2 | 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.










