Surf Forecasts:
Ranches surf forecast from 1 Aug 2026:
- Best quality surf: Sunday 2 Aug, 5AM (local time) - 4.5ft (1.4m), 7s period, NE swell with offshore winds.
- Most powerful swell: Sunday 2 Aug, 5AM (local time) - 4.5ft (1.4m), 7s period, NE swell with 217 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 8AM (local time) - 2ft (0.6m), 14s period with SW 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 (Aug 01) at 8AM. The primary swell is predicted to be 0.6m and 14s 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 1.4m 7s and forecast to arrive on Sunday (Aug 02) 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 1.6m 7s period and expected on Saturday (Aug 01) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 1st Aug) | 2ft (0.6m) 14s |
| Best Surf | 5AM (Sun 2nd Aug) | 4.5ft (1.4m) 7s |
| Most Powerful | 5AM (Sun 2nd Aug) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
Alright, let’s break down what’s coming. The first few days are a total flat spell, so don’t even bother waxing up.
From Friday the 31st of July through to the end of the first week of August, it’s mostly nothing. A few tiny, weak windswells that aren’t worth your time. There’s a solid four- or five-day gap with no real surf.
The first little pulse shows up on Sunday the 2nd of August. Ranches (reef) will get a 1.4m swell from the NE, but it’s short-period at 7 seconds. The wind is offshore and clean, but the combined energy (232 to 274) is moderate. It’s marginal, but it’s a start.
Then it goes flat again from Monday the 3rd through Thursday the 6th of August. Friday the 7th is a tiny 0.3m NNW swell, nothing to write home about.
Now, the good stuff. On Saturday the 8th of August, the morning brings a tiny 0.5m swell from the SW, but with a very long period of 18 seconds. That’s proper groundswell, with combined energy of 238. The wind is a gentle offshore breeze from the NE, so it’ll be clean. This is a standout for the patient surfer. The waves will be small but super well-shaped, with long lulls between sets. The water temperature is 27°, which is average for the time of year.
The real quality run starts on Tuesday the 11th of August. From then through to Saturday the 15th of August, the swell is consistent from the W, building from 0.6m to 1.1m. The period is long, 12 to 16 seconds, and the combined energy climbs from 273 up to 545 by Saturday afternoon. That’s strong energy. The wind is offshore (ENE to NE) and clean. This is the best stretch of the forecast. The reef will handle the long-period groundswell perfectly. Crowds are sometimes an issue, so plan accordingly.
The absolute best day is Saturday the 15th of August. The morning has 1.0m from the W, 14 seconds, and combined energy of 482. The afternoon is even better: 1.1m from the W, 14 seconds, and combined energy of 545. That’s the strongest energy of the whole period. The wind is offshore and moderate. This is the one to chase. For experienced surfers, it’s going to be excellent. Beginners might find it a bit much as it’s pushing over 1m.
So, to sum it up: the first week is a dud. The second week, especially from the 11th to the 15th of August, is where the action is. And the 15th of August is the clear winner.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Fri afternoon, min 25°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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) | N 8 | N 8 | ENE 8 | ENE 7 | N 10 | NE 7 | NE 7 | NE 7 | SW 12 | NE 6 | N 5 | N 5 | NNE 5 | NE 11 | NE 10 | NE 9 | SSW 15 | SSW 14 | SSW 14 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 21 | 11 | 0 | 0 | 17 | 217 | 176 | 147 | 0 | 0 | 13 | 14 | 9 | 71 | 47 | 41 | 0 | 0 | 0 | 102 |
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 | glassy | glassy | off | cross-on | glassy | off | cross-off | off | off |
High Tide | 5:46PM0.61m | 6:17AM0.31m | 6:15PM0.55m | 7:09AM0.35m | 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 | |||||||
Low Tide | 00:40AM0.06m | 11:32AM0.11m | 1:06AM0.05m | 12:24PM0.16m | 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 | |||||||
 |  | |  | | | | | | |  | | | |  | | | | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 26 | 26 | 26 | 26 | 27 | 30 | 26 |
Feels °C | 28 | 26 | 25 | 25 | 25 | 25 | 24 | 23 | 26 | 28 | 25 | 29 | 31 | 29 | 28 | 29 | 29 | 29 | 31 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | ENE 8 | SW 13 | N 5 | ENE 11 | ENE 11 | NE 11 | NE 10 | NE 9 | SSW 15 | ENE 8 | ENE 8 | ENE 7 |
| kJ | 236 | 220 | 127 | 123 | 129 | 133 | 85 | 42 | 40 | 41 | 13 | 70 | 66 | 71 | 47 | 41 | 86 | 26 | 42 | 36 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 11 | N 10 | N 9 | N 9 | SSW 13 | SW 12 | SSW 12 | SSW 12 | N 5 | SSW 12 | SSW 11 | SSW 11 | SSW 15 | ENE 9 | SSW 14 | SSW 14 | SW 14 |
| kJ | 106 | 71 | 41 | 38 | 17 | 15 | 13 | 33 | 39 | 50 | 56 | 14 | 52 | 69 | 46 | 88 | 29 | 81 | 80 | 102 |
Swell 3 Height (m) Direction Period (s) | N 8 | N 8 | E 15 | E 14 | S 11 | S 11 | SSE 8 | SSE 6 | SSW 13 | SE 7 | ENE 8 | SSW 12 | NNE 5 | SSW 15 | SSW 15 | SSW 11 | SSW 10 | SSE 12 | SSE 11 | NNW 7 |
| kJ | 21 | 11 | 17 | 16 | 21 | 21 | 6 | 3 | 34 | 11 | 26 | 46 | 9 | 87 | 93 | 46 | 31 | 26 | 24 | 10 |
Wind waves Height (m) Direction Period (s) | E 7 | ENE 7 | ENE 8 | ENE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NNE 6 | NE 6 | NE 6 | — | — | — | — | — | — | — | ENE 7 | — |
| kJ | 112 | 172 | 256 | 279 | 223 | 217 | 176 | 147 | 41 | 60 | 12 | — | — | — | — | — | — | — | 71 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 6 | 6 | 162 | 173 | 154 | 154 | 386 | 0 | 2 | 2 | 2 | 6 | 2 | 0 | 10 | 0 | 2 | 2 | 6 | 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.
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