
Surf Forecasts:
Ranches surf forecast from 18 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 11AM (local time) - 1.5ft (0.5m), 17s period, SW swell with glassy winds.
- Most powerful swell: Friday 24 Jul, 8PM (local time) - 4.5ft (1.3m), 7s period, NE swell with 176 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 2AM (local time) - 1.5ft (0.5m), 13s 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 Saturday (Jul 18) at 2AM. The primary swell is predicted to be 0.5m and 13s 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 1.3m 7s and forecast to arrive on Friday (Jul 24) at 8PM. 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+) | 2AM (Sat 18th Jul) | 1.5ft (0.5m) 13s |
| Best Surf | 11AM (Wed 22nd Jul) | 1.5ft (0.5m) 17s |
| Most Powerful | 8PM (Fri 24th Jul) | 4.5ft (1.3m) 7s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve got to be straight with you—this 16-day window for Ranches is a bit of a mixed bag. There’s some decent swell on the way, but you’ll have to pick your moments carefully. The overall pattern is one of inconsistent, often small wave energy, with a few standouts that’ll get your heart pumping. The water temp is about average for the time of year, nothing unusual there.
The week starts pretty quiet. Right now, Saturday 18 July and Sunday 19 July, we’ve got tiny 1ft to 3ft waves from the WNW and NE, with short periods under 8 seconds. The wind’s light offshore, so the surface will be clean, but the energy is weak (85 to 98 combined energy). It’s really just a splash around for a longboard, not worth getting too excited about. Monday 20 July and Tuesday 21 July are much the same—small, clean, but ordinary. The swell sticks around 2ft to 3ft from the NE, periods still short, energy low (53 to 89). Nothing to write home about.
Now, Wednesday 22 July is a real standout. The morning brings a glassy, light ENE wind, and a 2ft swell from the SW with a long 17-second period. That’s a proper groundswell, and it’s pumping moderate energy (205). The conditions are glassy, the waves will be clean, and for a reef break like Ranches, that long period will line up nicely. This is your best bet in the first week—small but quality. The afternoon drops off to a short-period NE windswell, so don’t sleep in.
Thursday 23 July and Friday 24 July morning are a flat spell—no swell at all, just offshore wind and poor conditions. Then Friday 24 July afternoon picks up a 4ft NE swell with a 7-second period and moderate energy (147). It’s surfable but ordinary, with moderate offshore wind. Saturday 25 July and Sunday 26 July are the real highlight of the whole forecast. The swell builds to 4ft from the NE, period reaching 8 seconds, and the combined energy jumps to 200–224 (moderate to strong). The wind is offshore or clean cross-off, and the conditions are rated as good. This is solid, consistent surf for advanced surfers. Ranches will be working well, with clean faces and decent power. The water’s average temp, and the crowd is sometimes there, so you might have a few mates out, but it’s worth it.
Monday 27 July still has 3ft to 4ft swell from the NNE, but the energy drops to 123–166, and it’s just ordinary. After that, the surf fades. Tuesday 28 July through Wednesday 29 July sees small 2ft to 3ft waves with poor conditions and weak energy (35–77). Thursday 30 July is a little better, with 3ft to 3ft from the NE, but still short period and clean—just ordinary. Friday 31 July and Saturday 1 August are a mix of tiny swells and glassy conditions, but the energy is weak (22–89) and the surf is poor. Sunday 2 August ends the run with a 4ft NE swell, moderate energy (106), and light offshore wind—a decent last chance, but not a standout.
So, the best on offer is Wednesday 22 July morning for the glassy, long-period groundswell, and then the weekend of Saturday 25 July to Sunday 26 July for the punchy, 4ft NE swell with clean offshore winds. The rest is mostly small and ordinary. If you’re after clean, lined-up waves, aim for those dates.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue afternoon. Warm (max 28°C on Wed afternoon, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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 13 | WNW 13 | WNW 13 | NE 7 | NE 7 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | SW 17 | NE 7 | SSW 22 | SSW 20 | SSW 20 | SSW 18 |
Wave Graph | |||||||||||||||||||
90 | 57 | 57 | 73 | 73 | 56 | 77 | 64 | 89 | 47 | 44 | 55 | 44 | 140 | 52 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | cross-off | off | cross-off | off | off | glassy | off | off | off | off | off |
High Tide | 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 | 1:22PM0.55m | 00:06AM0.16m | |||||||
Low Tide | 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 | 5:04AM0.05m | 9:31PM0.17m | |||||||
— | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
7:16 | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 28 | 25 | 27 | 28 | 25 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 27 | 25 |
Feels °C | 27 | 27 | 28 | 25 | 27 | 26 | 24 | 28 | 26 | 23 | 28 | 27 | 26 | 29 | 28 | 26 | 26 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | NE 7 | SSW 13 | SSW 14 | NE 7 | SSW 13 | S 13 | SSW 11 | S 13 | S 16 | S 13 | S 14 | S 14 | S 13 | S 13 | SSW 23 | S 13 | SSW 20 | SSW 20 | SSW 18 |
65 | 141 | 210 | 73 | 127 | 126 | 71 | 121 | 325 | 163 | 329 | 311 | 277 | 277 | 426 | 209 | 528 | 395 | 616 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | NNE 7 | NNE 8 | SSW 12 | SE 6 | S 19 | S 18 | S 16 | SW 18 | S 15 | SW 17 | SSW 16 | NE 7 | SSW 24 | S 13 | SSW 22 | S 12 | S 11 | S 11 |
189 | 28 | 36 | 121 | 9 | 110 | 154 | 193 | 80 | 163 | 73 | 103 | 44 | 437 | 125 | 480 | 132 | 123 | 83 | |
Swell 3 Height (m) Direction Period (s) | W 13 | WNW 13 | WNW 13 | SSE 9 | W 12 | SSE 6 | SW 19 | SW 18 | SSE 5 | SSW 16 | W 11 | SSE 6 | SSW 26 | SW 17 | S 10 | SSW 17 | SSW 16 | SSW 16 | S 13 |
90 | 57 | 57 | 30 | 25 | 7 | 92 | 83 | 3 | 105 | 9 | 4 | 224 | 140 | 76 | 202 | 100 | 173 | 85 | |
Wind waves Height (m) Direction Period (s) | — | ENE 7 | ENE 7 | E 8 | NE 7 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | — | NE 7 | NE 7 | NE 6 | ENE 6 | ENE 7 | ENE 7 |
— | 62 | 86 | 223 | 73 | 56 | 77 | 64 | 89 | 47 | 44 | 55 | — | 65 | 52 | 38 | 55 | 110 | 76 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 136 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 2 | 2 | 6 |
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.










