Surf Forecasts:
Ranches surf forecast from 14 Aug 2026:
- Best quality surf: Friday 14 Aug, 11AM (local time) - 3.5ft (1.1m), 7s period, NE swell with offshore winds.
- Most powerful swell: Saturday 15 Aug, 11AM (local time) - 5.5ft (1.7m), 7s period, NE swell with 276 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 11AM (local time) - 3.5ft (1.1m), 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 Friday (Aug 14) at 11AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.2m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ranches in the next 16 days are 1.7m 7s and forecast to arrive on Saturday (Aug 15) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Sunday (Aug 16) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Fri 14th Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 11AM (Fri 14th Aug) | 3.5ft (1.1m) 7s |
| Most Powerful | 11AM (Sat 15th Aug) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
Right, let’s have a look at what’s on offer. It’s a bit of a mixed bag for the next couple of weeks, to be honest. The swell energy is mostly weak to moderate, and the wind is a constant factor. The standout window is definitely the first weekend into early next week, but even then, you’ll have to pick your moment.
The only spot firing through this whole period is Ranches. It’s a reef break, exposed to the NW swell, so it needs the right direction. Right now, the swell is coming from the NE, which isn’t its optimum, but the wind is often offshore, which keeps things clean.
Friday the 14th is a bit of a write-off. We’ve got a 4ft NE swell but the wind is a moderate breeze from the NE, making it messy. The combined energy is only 105 – weak stuff. Saturday the 15th morning sees a bump in size to 6ft from the NE, still offshore, but the wind is a fresh breeze at 22 mph. That’s going to be a handful, and the energy is moderate (311). Saturday afternoon drops off a cliff to a tiny 1.0ft long-period swell from the W, but with a strong offshore wind, it’s impossible to paddle into.
Sunday the 16th is a no-go with a risk of thunderstorms and a tiny 1.0ft swell. The real chance comes on Monday the 17th. We’ve got a 3ft NE swell, and the wind goes glassy in the morning. It’s only a 7-second period, so it’s not the most powerful wave, but the combined energy is 102 – weak. The water is about average for this time of year. Tuesday the 18th morning is even smaller, 3ft, but glassy again. The run of small, clean surf continues through Wednesday the 19th with a 2ft SW swell and a very long period of 16 seconds. That’s a groundswell, and the energy is moderate (162). For a reef break like Ranches, that long period will offer some nice, lined-up waves, but they’ll be fat.
After that, we hit a big gap. From Thursday the 20th right through to Saturday the 23rd, the waves are tiny and poor. The wind is onshore or cross-onshore, and the swell is barely registering. Sunday the 23rd afternoon picks up a 1ft WNW swell, with a moderate offshore, but it’s barely surfable.
The outlook improves towards the end of the month. Thursday the 27th sees a 4ft NE swell return, with a gentle offshore breeze. The combined energy is 136 (moderate), and the period is short at 6 seconds. This is the best looking run in the second week. Friday the 28th is similar with 4ft to 4ft NE swell and offshore winds. It’s still not epic, but it’s consistent, clean, and surfable. Saturday the 29th drops off again with a bit of cross-offshore wind and a small 2ft swell.
So, if you’re going to paddle out, the best bet is the glassy morning of Monday the 17th for the most user-friendly conditions, or Thursday the 27th for the slightly bigger, cleaner swell in the second week. Expect crowds at Ranches sometimes, so it won’t be empty.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Sun morning. Warm (max 29°C on Fri afternoon, min 25°C on Sun morning). Winds decreasing (near gales from the ENE on Sat night, light winds from the E by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Mon afternoon, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
AM | 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 | NE 7 | NE 7 | W 13 | WNW 13 | WNW 12 | NE 8 | NE 8 | NE 7 | NE 7 | NE 6 | NE 6 | NE 6 | NE 6 | SW 16 | NE 7 | NNE 7 | NE 7 | NE 7 | NE 7 |
Wave Graph | |||||||||||||||||||||
114 | 113 | 143 | 276 | 30 | 33 | 28 | 208 | 131 | 89 | 67 | 49 | 28 | 26 | 20 | 129 | 37 | 30 | 36 | 36 | 29 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | cross-off | cross-off | off | off | cross-off | glassy | off | cross-off | glassy | glassy | off | glassy | cross-off | off |
High Tide | 5:42PM0.59m | 6:26AM0.41m | 6:14PM0.50m | 7:17AM0.44m | 6:44PM0.42m | 8:14AM0.46m | 7:12PM0.34m | 9:19AM0.48m | 7:36PM0.27m | 10:33AM0.50m | 11:45AM0.53m | 10:31PM0.18m | |||||||||
Low Tide | 11:07AM0.08m | 00:21AM0.04m | 12:01PM0.14m | 00:48AM0.05m | 1:01PM0.20m | 1:16AM0.06m | 2:17PM0.25m | 1:45AM0.08m | 4:14PM0.27m | 2:19AM0.10m | 3:05AM0.12m | 8:45PM0.20m | |||||||||
6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | |
mm | — | — | — | — | — | 2 | 16 | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 29 | 26 | 27 | 28 | 26 | 26 | 28 | 27 | 27 | 28 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 26 |
Feels °C | 26 | 27 | 27 | 24 | 26 | 23 | 24 | 28 | 29 | 30 | 30 | 27 | 30 | 30 | 27 | 29 | 28 | 27 | 30 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 16 | SSE 8 | NE 8 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | NNE 7 | NE 7 | NNE 7 | SW 18 | SSW 17 | SW 16 |
503 | 496 | 311 | 280 | 168 | 176 | 192 | 220 | 131 | 338 | 333 | 225 | 165 | 162 | 155 | 32 | 37 | 30 | 316 | 200 | 278 | |
Swell 2 Height (m) Direction Period (s) | W 12 | NNW 8 | ESE 10 | W 11 | W 13 | S 18 | S 13 | NE 8 | S 6 | NE 7 | NE 7 | S 5 | NE 6 | NE 6 | NE 6 | S 12 | S 12 | SSW 16 | NE 7 | NE 7 | NE 7 |
11 | 6 | 63 | 22 | 30 | 99 | 119 | 208 | 84 | 89 | 67 | 13 | 28 | 26 | 20 | 103 | 69 | 175 | 36 | 36 | 29 | |
Swell 3 Height (m) Direction Period (s) | NNW 8 | SSW 18 | NNW 8 | NNW 8 | NNW 8 | WNW 13 | WNW 12 | S 13 | S 14 | S 6 | S 6 | WNW 11 | SSW 17 | SSW 18 | SW 18 | SW 16 | SSW 16 | S 12 | SSE 11 | S 11 | S 11 |
6 | 30 | 12 | 6 | 12 | 33 | 28 | 163 | 236 | 43 | 33 | 24 | 115 | 123 | 79 | 129 | 100 | 45 | 41 | 40 | 22 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 8 | ENE 8 | ESE 8 | — | E 8 | — | NE 6 | — | ENE 8 | — | — | — | — | — | — | — |
114 | 113 | 143 | 276 | 353 | 854 | 910 | 899 | — | 206 | — | 49 | — | 94 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 154 | 154 | 154 | 154 | 176 | 16 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 0 | 2 | 2 | 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.











