
Surf Forecasts:
Ranches surf forecast from 5 Aug 2026:
- Best quality surf: Saturday 8 Aug, 2PM (local time) - 1.5ft (0.5m), 18s period, SW swell with offshore winds.
- Most powerful swell: Saturday 8 Aug, 8AM (local time) - 1.5ft (0.5m), 19s period, SW swell with 175 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 2AM (local time) - 2ft (0.6m), 11s 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 Wednesday (Aug 05) at 2AM. The primary swell is predicted to be 0.6m and 11s 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 0.5m 19s and forecast to arrive on Saturday (Aug 08) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Sunday (Aug 09) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 5th Aug) | 2ft (0.6m) 11s |
| Best Surf | 2PM (Sat 8th Aug) | 1.5ft (0.5m) 18s |
| Most Powerful | 8AM (Sat 8th Aug) | 1.5ft (0.5m) 19s |
Table - best surf conditions forecast for Ranches over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the next 16 days for Ranches. It’s a reef setup, exposed to the northwest swell window, and it’s a spot for the advanced crew – fairly consistent, but with a crowd sometimes.
Right off the bat, we’ve got a bit of a slow start. The first couple of days are looking pretty flat and underwhelming. Early on Tuesday the 4th, we’ve got a tiny 2ft bump from the NNE with a weak 6-second period – that’s just wind slop. The combined energy is a measly 25, so it’s weak. The wind is a light cross-onshore, so it’s not great. By Tuesday afternoon, it goes glassy but the swell is even smaller. It’s a tough start.
Wednesday the 5th morning is glassy, with a slightly better 2ft from the NE and a period of 10 seconds, energy is still low at 79. It’s surfable, but ordinary. That afternoon, the wind goes offshore, but it’s flat with no swell.
We go through a few days of similar small, ordinary conditions. Thursday the 6th has a tiny 1ft bump, not worth it. Friday the 7th actually has a glassy afternoon with a 2ft swell from the SW, but the period is a very long 14 seconds. That’s a groundswell, but it’s small, and the energy is only 91 – weak. For a point or reef, that long period can be good, but the size is just too small to get excited about.
The real standout doesn’t come until the second week. Look at Tuesday the 18th. The morning is glassy, with a 5ft swell from the NE, 8-second period, and the combined energy jumps to 390 – that’s moderate energy. The afternoon is offshore with a 5ft swell from the same direction and 350 energy. This is the best on offer. That’s a clean, head-high wave at a reef, and with offshore or glassy wind, it’s going to be lined up. The 5ft is getting a bit punchy for beginners, but for the advanced crew here, that’s the sweet spot.
Then Wednesday the 19th rolls in with a big spike in energy: 689 combined from a 2ft SW swell, but with a ridiculously long 21-second period. That’s a very long period groundswell. On a reef, that could be a freight train, but the wind is onshore in the morning, so it’s messy. The afternoon goes glassy with a 2ft, 15-second period swell from the west, energy still high at 408. That could be a beautiful, clean, long-period wave, but it’s a bit of a wildcard. The long period means long waits between sets, but when they come, they’ll be powerful.
So, the best bet is the morning of Tuesday the 18th. Glassy conditions, a solid 5ft of NE swell, good energy. It’s the only day that ticks all the boxes. The later part of the week has potential, but that 18th is the clear winner.
Rusty, signing off.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 28°C on Wed afternoon, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Sun afternoon, min 25°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | NNE 6 | NNE 5 | NE 11 | NE 10 | SSW 15 | NNE 5 | NNW 8 | NE 8 | NNW 7 | NE 7 | SW 14 | SSW 19 | NE 6 | SW 18 | NE 6 | SW 16 | NE 7 | NE 7 | NE 7 | SSW 15 | NE 7 |
Wave Graph | |||||||||||||||||||||
25 | 16 | 92 | 79 | 0 | 9 | 13 | 41 | 18 | 27 | 91 | 0 | 49 | 155 | 49 | 132 | 86 | 91 | 79 | 0 | 54 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | off | glassy | off | off | cross-off | off | off | off | glassy | off | off | off | off | off | off | off | cross-off | off | off |
High Tide | 9:16AM0.44m | 7:47PM0.33m | 10:31AM0.50m | 8:27PM0.26m | 11:44AM0.57m | 9:50PM0.19m | 12:47PM0.64m | 11:52PM0.16m | 1:42PM0.70m | 1:19AM0.16m | 2:30PM0.75m | 2:22AM0.19m | 3:14PM0.77m | 3:15AM0.23m | |||||||
Low Tide | 3:10PM0.27m | 2:41AM0.03m | 5:37PM0.27m | 3:28AM0.03m | 7:57PM0.21m | 4:26AM0.02m | 8:52PM0.16m | 5:32AM0.01m | 9:27PM0.12m | 6:38AM-0.01m | 9:58PM0.08m | 7:38AM-0.02m | 10:28PM0.06m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
— | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 27 | 28 | 25 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 28 | 25 | 28 | 29 | 26 | 28 | 29 | 26 |
Feels °C | 30 | 28 | 28 | 31 | 29 | 25 | 29 | 30 | 27 | 27 | 29 | 28 | 27 | 28 | 26 | 30 | 30 | 29 | 30 | 31 | 27 |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NNE 5 | NE 11 | NE 10 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | NE 7 | SSW 12 | NE 7 | SSW 16 | SSW 15 | SSW 15 |
25 | 16 | 92 | 79 | 88 | 86 | 81 | 80 | 138 | 77 | 91 | 108 | 133 | 102 | 99 | 102 | 85 | 91 | 191 | 234 | 246 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | NNE 5 | SSE 11 | NNW 8 | NNW 7 | SSE 11 | SSE 11 | SSW 19 | SSW 18 | SW 18 | SSW 17 | SSW 13 | S 18 | SSW 16 | SSW 12 | SSE 10 | SE 7 |
46 | 75 | 69 | 38 | 46 | 9 | 25 | 19 | 18 | 39 | 38 | 148 | 221 | 155 | 202 | 98 | 156 | 288 | 81 | 36 | 14 | |
Swell 3 Height (m) Direction Period (s) | ENE 8 | ENE 11 | SSW 15 | SSW 16 | SSE 12 | S 12 | NNW 8 | SSE 11 | S 11 | NNW 7 | SW 20 | SSE 11 | SE 6 | SSE 10 | SE 7 | SW 16 | SSW 16 | SSW 12 | SE 8 | SSW 11 | SSW 11 |
24 | 46 | 87 | 94 | 49 | 46 | 13 | 41 | 38 | 10 | 99 | 39 | 10 | 31 | 13 | 132 | 102 | 56 | 17 | 42 | 23 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 5 | — | NE 6 | NE 8 | ENE 8 | NE 7 | NE 5 | NE 6 | NE 6 | ENE 6 | NE 6 | ENE 7 | NE 7 | — | NE 7 | ENE 7 | NE 7 |
— | — | — | — | 9 | — | 20 | 41 | 23 | 27 | 8 | 33 | 49 | 52 | 49 | 220 | 86 | — | 79 | 81 | 54 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 2 | 0 | 0 | 2 | 2 | 2 | 0 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 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.











