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Surf Forecasts:
Ranches surfForecast / HAW – Oahu / USA
12 Day Weather and Surf, issued 1 am Wednesday 10 Sep 2025 HST
Best Forecast Surf Conditions for Ranches this week:
The surf forecast for Ranches over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 10) at 11PM. The primary swell is predicted to be 0.4m and 10s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ranches in the next 12 days are 0.9m 12s and forecast to arrive on Friday (Sep 12) 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 0.9m 6s period and expected on Sunday (Sep 14) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 10th Sep) | 1.5ft (0.4m) 10s |
| Best Surf | 2AM (Fri 12th Sep) | 2ft (0.6m) 15s |
| Most Powerful | 11PM (Fri 12th Sep) | 3ft (0.9m) 12s |
Table - best surf conditions forecast for Ranches over the next 12 days.
Short Range Forecast Light rain (total 7mm), mostly falling on Wed morning. Warm (max 29°C on Fri afternoon, min 25°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 11 | 8 | 7 | 13 | 13 | 15 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 113 | 135 | 79 | 106 | 79 | 203 | 201 | 172 | 203 | 135 | 93 | 123 | 77 | 74 | 92 | 90 | 90 | 59 | 38 | 22 | 12 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- off | glass | on | cross- off | glass | off | off | cross- off | off | off | off | off | off | cross- off | off | off | cross- off | off | off |
High Tide / height (m) | 6:00PM 0.39 | 7:21AM 0.60 | 6:36PM 0.30 | 8:28AM 0.61 | 7:19PM 0.23 | 9:45AM 0.62 | 8:47PM 0.17 | 11:04AM 0.64 | 11:22PM 0.16 | 12:13PM 0.66 | 12:54AM 0.20 | 1:09PM 0.66 | 1:47AM 0.25 | ||||||||
Low Tide / height (m) | 12:39PM 0.16 | 12:10AM 0.02 | 2:02PM 0.21 | 12:44AM 0.04 | 4:01PM 0.22 | 1:26AM 0.06 | 6:26PM 0.19 | 2:24AM 0.09 | 7:35PM 0.15 | 3:51AM 0.12 | 8:10PM 0.12 | 5:23AM 0.12 | 8:38PM 0.09 | ||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||
| Sunrise | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:20 | - | - |
| Sunset | - | 6:39 | - | - | 6:39 | - | - | 6:38 | - | - | 6:37 | - | - | 6:37 | - | - | 6:36 | - | - | 6:35 | - |
 | |  |  |  |  |  | |  | | | | | | | | | | | | | |
Rain (mm) | 3 | 2 | 1 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 27 | 27 | 28 | 27 | 26 | 28 | 29 | 26 | 28 | 29 | 26 | 27 | 29 | 26 | 28 | 28 | 25 | 28 | 29 | 26 |
| Feels °C (?) | 27 | 27 | 30 | 31 | 27 | 27 | 31 | 31 | 26 | 30 | 29 | 28 | 28 | 29 | 27 | 29 | 29 | 24 | 29 | 29 | 26 |
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Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Oahu
Continuing clean conditions at Ranches (calm at Wheeler Air Force Base/oahu Airport 23 km from Ranches). No surfable waves
23 km away, 1 h 48 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ranches surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 12 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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