Surf Forecasts:
Ranches surf forecast from 26 Aug 2026:
- Best quality surf: Monday 31 Aug, 8PM (local time) - 4ft (1.2m), 8s period, NE swell with offshore winds.
- Most powerful swell: Monday 31 Aug, 11PM (local time) - 4ft (1.2m), 8s period, NE swell with 169 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 11PM (local time) - 2.5ft (0.8m), 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 (Aug 27) at 11PM. The primary swell is predicted to be 0.8m 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 1.2m 8s and forecast to arrive on Monday (Aug 31) at 11PM. 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 Tuesday (Sep 01) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 27th Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 8PM (Mon 31st Aug) | 4ft (1.2m) 8s |
| Most Powerful | 11PM (Mon 31st Aug) | 4ft (1.2m) 8s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
G'day, Rusty here, and I've gotta level with you. The next couple of weeks at Ranches are going to be a real mixed bag, and honestly, not a whole lot to get excited about. It's a solid reef break that's fairly consistent and handles a NW swell best, but the conditions are fighting us most of the way.
We're starting off with a bit of a dud. Wednesday the 26th of August – nothing happening. Clean offshore winds, but no swell to speak of, so you're just looking at flat water. Thursday the 27th is much the same, with a tiny 1 ft NW groundswell rolling in, but it's weak, with combined energy only at 13. Still, you've got clean, offshore conditions, so if you're desperate for a splash, it's there.
Friday the 28th sees a slight uptick. A 3 ft NE swell, short period at 6 seconds, and combined energy of 52. It's surfable, but very ordinary. The wind is offshore, keeping it clean, but the waves are just lacking any punch. The morning is your best bet. Saturday and Sunday are a similar story, with the swell slowly building. By Sunday morning, we're seeing 3 ft NE swell, period up to 7 seconds, and energy climbing to 97. It's still pretty weak, but the offshore winds are gentle, so it's rideable. Sunday afternoon starts to show a bit more energy hitting 127, but still, it's nothing to write home about.
Monday the 31st is the first time we see a bit of consistency. A 4 ft NE swell, 7-second period, and energy around 112 to 127. The morning is clean with a gentle offshore breeze, but the afternoon gets a bit stronger with a moderate breeze. It's still only a 1-out-of-10 kind of day, but it's the best we've seen so far. Tuesday the 1st of September is a similar height, but nice cross-offshore winds, so it's clean. The energy is a bit lower, but it's a solid, if unremarkable, option.
The first week of September is more of the same – small, weak, but clean. Wednesday the 2nd has a 3 ft NE swell, energy dropping to 65, and Thursday the 3rd bumps back up to 3 ft with energy at 102. The winds are offshore, so it's clean, but the waves are just not packing any power. Friday the 4th is a bit of a weird one – a 3 ft NE swell in the morning, then a 1 ft SW groundswell in the afternoon with a 13-second period, but the energy is low and the wind is a fresh 30 km/h offshore, making it windy and not great.
The real kicker is that from the start of the second week, the wind starts to let us down. Saturday the 5th and Sunday the 6th still have some 4 ft NE swell, but the wind is strong, hitting 25 to 30 km/h, and the conditions are getting choppy. Then from Monday the 7th, it's all cross-shore winds, and by Tuesday the 8th, we've got onshore winds and a risk of thunderstorms. The swell is still there, around 3 ft to 4 ft, but the wind is just ruining any chance of quality. Wednesday the 9th is even worse with fresh cross-onshore winds and lumpy conditions.
The long-range pick is a bit of a tease. Thursday the 10th of September sees a 3 ft NW swell, period of 12 seconds, and energy jumping to 285. That's moderate energy. The direction is perfect for Ranches, and it's a longer period groundswell, which this reef will love. The problem is the wind is a moderate cross-shore, and it's still only rated as poor surf conditions. It's the most promising swell of the whole forecast, but the wind has to cooperate for it to become a standout. Keep an eye on that one.
So, to sum it up, the first week is all about small, clean, weak waves. The second week, the swell is there, but the wind is a mess. The only real standout in the whole 16 days is that Thursday the 10th – if the wind switches, it could be the best day of the lot. For now, it's a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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) | SSW 15 | SSW 14 | S 18 | S 19 | NW 9 | NW 9 | NW 9 | NE 6 | S 14 | NE 6 | NE 6 | W 11 | NNE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 |
Wave Graph | |||||||||||||||||||
0 | 0 | 0 | 0 | 13 | 13 | 12 | 45 | 0 | 54 | 56 | 9 | 46 | 89 | 118 | 105 | 112 | 127 | 155 | |
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 |
High Tide | 3:15AM0.30m | 3:44PM0.65m | 3:51AM0.34m | 4:13PM0.63m | 4:28AM0.38m | 4:40PM0.59m | 5:07AM0.43m | 5:09PM0.54m | 5:50AM0.47m | 5:38PM0.48m | 6:38AM0.50m | 6:08PM0.41m | |||||||
Low Tide | 10:11PM0.11m | 8:42AM0.05m | 10:30PM0.10m | 9:23AM0.06m | 10:50PM0.08m | 10:04AM0.07m | 11:12PM0.07m | 10:49AM0.10m | 11:35PM0.05m | 11:40AM0.14m | 00:00AM0.05m | 12:40PM0.19m | 00:28AM0.05m | ||||||
— | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | |
6:54 | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 28 | 25 | 27 | 28 | 26 | 26 | 28 | 25 | 27 | 28 | 26 | 27 | 28 | 26 | 27 | 28 | 26 |
Feels °C | 26 | 26 | 27 | 24 | 27 | 27 | 26 | 26 | 27 | 25 | 27 | 27 | 26 | 28 | 28 | 27 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | S 18 | S 19 | S 17 | S 16 | S 16 | S 14 | S 14 | S 14 | S 13 | S 13 | NNE 6 | S 12 | S 12 | SSW 15 | SSW 15 | SSW 14 | NE 8 |
167 | 215 | 395 | 365 | 708 | 534 | 582 | 334 | 324 | 293 | 219 | 165 | 46 | 100 | 100 | 199 | 191 | 180 | 155 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | S 18 | SSW 13 | SSW 13 | S 12 | S 12 | NNE 7 | SSW 11 | SSE 7 | SW 19 | SW 18 | SSW 17 | S 12 | SSW 16 | SSW 16 | S 11 | S 11 | S 11 | S 10 |
81 | 165 | 135 | 137 | 71 | 72 | 10 | 39 | 4 | 91 | 80 | 115 | 141 | 171 | 162 | 87 | 82 | 82 | 53 | |
Swell 3 Height (m) Direction Period (s) | S 18 | ESE 7 | SE 6 | S 17 | NW 9 | NW 9 | NW 9 | WNW 8 | SSW 19 | SSE 5 | SSE 5 | W 11 | SSW 17 | W 10 | W 11 | SSW 20 | SSW 18 | SSW 19 | S 19 |
167 | 10 | 14 | 147 | 13 | 13 | 12 | 7 | 35 | 3 | 3 | 9 | 186 | 8 | 9 | 38 | 31 | 122 | 192 | |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 5 | NE 5 | ENE 5 | NE 5 | NE 6 | NE 5 | NE 6 | NE 6 | NE 6 | NE 6 | ENE 6 | E 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 8 |
19 | 20 | 24 | 33 | 27 | 50 | 27 | 45 | 47 | 54 | 56 | 80 | 135 | 89 | 118 | 105 | 112 | 127 | 280 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 6 | 2 | 2 | 2 | 2 | 2 | 18 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 8 | 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.











