
Surf Forecasts:
Ranches surf forecast from 9 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★+): Thursday 9 Jul, 2AM (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 Thursday (Jul 09) at 2AM. 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 1.5m 8s period and expected on Thursday (Jul 09) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 9th 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.
Alright folks, Rusty here. Let’s take a look at the surf ahead for Ranches.
We’re starting off with a bit of a flat, ordinary spell. The first few days, from Wednesday the 8th through to Friday the 10th, are pretty weak. The swell is small, only around 3 ft to 5 ft, and the period is a short, weak 6 to 7 seconds. The wind is offshore but it’s moderate, so the surf will be clean but the wave energy is low (combined energy of 193 dropping to 79). It’s not really worth paddling out for anything more than a splash.
Things start to pick up on Saturday the 11th. The morning shows a bit more life with a 4 ft NE swell and a moderate energy of 223. The wind stays offshore, so it’s clean. But the real standout is Sunday the 12th. The swell direction swings to the southwest, and the period jumps to a very long 16 seconds. This is proper groundswell. The size is only 3 ft, but the energy is strong (572 in the morning, 638 in the afternoon). This is a long-period swell, and at a reef break like Ranches, it’s going to produce some lined-up, powerful waves. The offshore wind is moderate, so it’ll be clean. For a break that’s fairly consistent and exposed to the NW, the SW direction is a bit unusual, but when the energy is this high, it’ll work. This is the best on offer in the whole window. Monday the 13th holds similar quality, with a 3 ft SW swell and a 15-second period, still very good (energy 505-566).
The water temp is around 80°F, and the anomaly is +0.9°F, so it’s about average for this time of year – nothing out of the ordinary.
The second week starts to fade. Tuesday the 14th sees a drop in size to 2 ft, but the period is still long (16 seconds) making it fun but small. The energy is moderate (462). Good conditions for a longboard or a quiet session. Wednesday the 15th and Thursday the 16th are similar, with small 2 ft to 3 ft W swells, long periods, and clean offshore winds. The energy stays in the moderate range (342 to 480). These are still good, clean days, just not as punchy.
By Friday the 17th, we get a little boost in the afternoon to 4 ft NE swell, but the period drops back to 7 seconds, so it’s a bit crumbly. Still, the wind is offshore and clean. That’s the last real highlight.
From Saturday the 18th onward, the energy drops off a cliff. The swell is tiny (1 ft), the energy is weak (62-63), and it’s basically flat. There’s a brief return of some 5 ft NE swell on Sunday the 19th (energy 290), but it’s short-lived, and by Monday the 20th, the wind goes cross-offshore, making the surf messy and poor. The rest of the window, through to the 23rd, is a mix of small, weak swells and poor conditions. Not worth the effort.
So, the standout is Sunday the 12th and Monday the 13th. That SW groundswell with a 16-second period and strong energy is the pick of the bunch. It’s a moderate offshore breeze, so the waves will be clean. At Ranches, a reef break, this will be a special session. The 9th to the 11th are just okay, and the second week is mostly a write-off after the 13th.
Rusty out.
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wed 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | N 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | SW 17 | SW 16 | SW 16 | NE 8 | SW 15 | SW 14 | W 18 | W 16 | W 16 | W 15 | W 15 |
Wave Graph | |||||||||||||||||||||
193 | 199 | 121 | 132 | 29 | 68 | 79 | 102 | 160 | 143 | 439 | 376 | 367 | 210 | 322 | 305 | 156 | 190 | 254 | 229 | 291 | |
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 | 10:20PM0.23m | 1:05PM0.58m | 11:38PM0.17m | 1:56PM0.66m | 1:00AM0.14m | 2:44PM0.73m | 2:10AM0.13m | 3:31PM0.77m | 3:12AM0.14m | 4:16PM0.79m | 4:09AM0.16m | 4:59PM0.77m | 5:05AM0.19m | ||||||||
Low Tide | 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 | 8:31AM-0.09m | 11:41PM0.02m | 9:24AM-0.08m | 00:17AM0.01m | 10:15AM-0.04m | |||||||
— | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | |
7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | 7:17 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 27 | 25 | 27 | 28 | 25 | 26 | 27 | 25 | 25 | 26 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 25 | 27 |
Feels °C | 25 | 25 | 28 | 28 | 25 | 26 | 26 | 25 | 24 | 25 | 25 | 26 | 26 | 25 | 24 | 25 | 24 | 28 | 26 | 25 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | NE 7 | S 12 | N 6 | S 12 | SSW 11 | SSW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SSW 16 | SW 15 | SW 14 | NE 7 | SSW 14 | SSW 14 | W 15 | W 15 |
187 | 178 | 121 | 110 | 29 | 70 | 41 | 251 | 218 | 316 | 439 | 376 | 367 | 425 | 322 | 305 | 102 | 236 | 232 | 229 | 291 | |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | S 12 | SE 8 | S 12 | W 14 | SW 21 | S 11 | W 14 | W 13 | S 11 | S 11 | SSE 12 | SE 8 | W 16 | W 18 | SSW 14 | W 16 | W 16 | SW 13 | SW 13 |
7 | 7 | 112 | 15 | 75 | 36 | 108 | 40 | 63 | 54 | 39 | 22 | 47 | 31 | 43 | 96 | 257 | 190 | 254 | 170 | 164 | |
Swell 3 Height (m) Direction Period (s) | S 18 | W 15 | SE 6 | W 14 | W 13 | SSW 21 | S 13 | W 13 | S 12 | S 12 | W 13 | W 12 | W 12 | W 12 | SSE 12 | SSE 11 | W 18 | SW 19 | SW 19 | SSW 17 | SSW 18 |
6 | 17 | 5 | 15 | 13 | 45 | 31 | 55 | 44 | 44 | 54 | 27 | 26 | 47 | 27 | 25 | 156 | 183 | 93 | 197 | 207 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | ENE 8 | NE 7 | ENE 7 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 | NE 8 | NE 7 | NE 7 | E 8 | NE 7 | NE 7 | NE 7 | NE 7 |
193 | 199 | 251 | 132 | 99 | 68 | 79 | 102 | 160 | 143 | 140 | 169 | 245 | 210 | 140 | 165 | 223 | 89 | 127 | 169 | 152 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 0 | 0 | 154 | 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 | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











