
Surf Forecasts:
Ranches surf forecast from 7 Jul 2026:
- Best quality surf: Sunday 12 Jul, 2AM (local time) - 3ft (0.9m), 17s period, SW swell with offshore winds.
- Most powerful swell: Sunday 12 Jul, 2AM (local time) - 3ft (0.9m), 17s period, SW swell with 439 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 11PM (local time) - 4.5ft (1.4m), 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 Monday (Jul 06) at 11PM. The primary swell is predicted to be 1.4m and 7s 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 0.9m 17s and forecast to arrive on Sunday (Jul 12) 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 1.6m 7s period and expected on Wednesday (Jul 08) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 6th Jul) | 4.5ft (1.4m) 7s |
| Best Surf | 2AM (Sun 12th Jul) | 3ft (0.9m) 17s |
| Most Powerful | 2AM (Sun 12th Jul) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Ranches over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, folks, Rusty here with a look at what’s on the table for Ranches. This reef set-up is an advanced-only kind of spot, exposed to the NW swell, but we’ve got a solid run of offshore winds blowing. Water temp is sitting at a comfy 80°, which is pretty much average for this time of year.
Right off the bat, from Monday the 6th through to Friday the 10th, it’s a bit of a slow starter. Swell is hanging around 4ft to 5ft from the NE, with periods around 7 seconds – that’s weak, short-period windswell. The energy is moderate at best (219-205 on the scale), and the conditions are clean with offshore winds, but the waves are just ordinary. Not much to get excited about, just small, crumbly lines. Saturday the 11th sees a slight bump to 5ft, still NE, and the winds hold offshore, but the energy is still moderate (261) and the wave quality is only "good". Nothing special.
Then things start to get interesting. On Sunday the 12th, we see a shift. Swell drops to a modest 3ft, but it swings around to the SW and the period jumps to a massive 16 seconds. That’s a proper groundswell, and for a reef like Ranches, that’s where it shines. The energy ramps way up into the strong range (632), and with moderate offshore winds from the NE, the surface will stay clean. This is the standout session of the whole run. Monday the 13th is very similar – 3ft of SW groundswell at 15 seconds (energy at 525) and gentle offshore winds. The waves will be longer-lined, more powerful, and less frequent, which makes paddling out easier. Crowds are possible at Ranches, but with that quality, expect company. This is the best on offer.
After that, the swell fades and shifts. Tuesday the 14th through to Thursday the 16th sees small west swell (2ft to 2ft) with periods still around 14-16 seconds, so the energy remains moderate (462 down to 226). Winds stay offshore, so it’ll be clean and fun for an advanced reef break, but the size is small. From Friday the 17th onwards, it gets ordinary again – small NE windswell (2ft to 3ft), short periods (6-7 seconds), and the energy drops away (179 down to 26 by the 20th). By Monday the 20th and Tuesday the 21st, it’s poor, with barely any energy and cross-off winds. That’s the end of the run.
So to wrap it up: the first week is mostly small and average, but Sunday the 12th and Monday the 13th are the real highlights – a long-period SW groundswell hitting a reef with clean offshore wind. That’s your window. After that, it’s a slow fade out.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed morning, min 24°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
209 | 221 | 200 | 267 | 209 | 171 | 156 | 171 | 130 | 151 | 151 | 105 | 136 | 205 | 179 | 198 | 189 | 439 | 376 | 367 | 353 | |
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 | off | off |
High Tide | 10:02AM0.32m | 8:37PM0.38m | 11:10AM0.40m | 9:21PM0.30m | 12:11PM0.49m | 10:20PM0.23m | 1:05PM0.58m | 11:38PM0.17m | 1:56PM0.66m | 1:00AM0.14m | 2:44PM0.73m | 2:10AM0.13m | 3:31PM0.77m | 3:12AM0.14m | |||||||
Low Tide | 2:53PM0.23m | 3:47AM-0.00m | 4:53PM0.25m | 4:24AM-0.02m | 7:01PM0.23m | 5:06AM-0.04m | 8:35PM0.17m | 5:54AM-0.06m | 9:36PM0.12m | 6:46AM-0.08m | 10:22PM0.07m | 7:39AM-0.09m | 11:03PM0.04m | ||||||||
5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | |
— | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 26 | 24 | 27 | 27 | 24 | 27 | 28 | 25 | 27 | 27 | 25 | 25 | 26 | 25 | 26 | 27 | 25 |
Feels °C | 23 | 23 | 23 | 22 | 23 | 23 | 27 | 25 | 23 | 27 | 27 | 25 | 28 | 26 | 25 | 24 | 25 | 25 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | S 13 | S 12 | S 12 | S 12 | S 12 | SSW 11 | SSW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | NE 8 |
446 | 402 | 355 | 350 | 273 | 254 | 243 | 187 | 168 | 112 | 110 | 75 | 70 | 40 | 251 | 218 | 316 | 439 | 376 | 367 | 164 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 9 | SE 6 | SSE 8 | SSE 9 | SE 9 | SSE 8 | SSE 5 | SE 8 | SSE 6 | SSE 8 | W 14 | SW 21 | S 11 | S 12 | S 12 | W 13 | S 11 | SSE 12 | SW 16 |
17 | 7 | 7 | 5 | 7 | 7 | 3 | 13 | 3 | 2 | 3 | 6 | 36 | 108 | 63 | 44 | 44 | 54 | 22 | 47 | 353 | |
Swell 3 Height (m) Direction Period (s) | NNW 10 | S 20 | NW 9 | SSE 8 | S 10 | — | N 8 | S 18 | W 15 | W 14 | W 14 | W 13 | SSW 21 | S 13 | W 13 | W 14 | W 13 | S 11 | W 12 | W 12 | SSE 12 |
10 | 30 | 3 | 7 | 2 | — | 1 | 6 | 17 | 16 | 15 | 13 | 45 | 29 | 55 | 63 | 54 | 39 | 27 | 26 | 47 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 | NE 8 | E 8 |
209 | 221 | 200 | 267 | 209 | 171 | 156 | 171 | 130 | 151 | 151 | 105 | 136 | 205 | 179 | 198 | 189 | 171 | 229 | 232 | 251 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 156 | 154 | 0 | 156 | 153 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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.










