Ranches Surf Break

Lat Long: 21.50° N 158.23° W

Ranches Surf Forecast and Surf Report

Issued: 7 pm 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ranches sea temperature is
27.4°C
0.6° 

Ranches surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Ranches surf forecast from 23 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 5AM (local time) - 2.5ft (0.7m), 12s period, WNW swell with offshore winds.
  • Most powerful swell: Sunday 23 Aug, 5AM (local time) - 2.5ft (0.7m), 12s period, WNW swell with 119 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 5AM (local time) - 2.5ft (0.7m), 12s period with WNW 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 Sunday (Aug 23) at 5AM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.9m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Ranches in the next 16 days are 0.7m 12s and forecast to arrive on Sunday (Aug 23) 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 1.2m 7s period and expected on Sunday (Aug 30) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 23rd Aug)2.5ft (0.7m) 12s
Best Surf 5AM (Sun 23rd Aug)2.5ft (0.7m) 12s
Most Powerful 5AM (Sun 23rd Aug)2.5ft (0.7m) 12s

Table - best surf conditions forecast for Ranches over the next 16 days.


The Lowdown

Alright, folks, Rusty here. Let’s get into it. We’re looking at a pretty quiet stretch ahead for the only spot on the radar, Ranches, a reef break that needs a solid NW swell to really wake up. The water temp is sitting about average for this time of year, so nothing wild there.

The pattern for the next 16 days is a long, drawn-out lull. We’ve got a few tiny bumps in the first week, but honestly, nothing is holding any real power. The best of a very average bunch comes on the afternoon of the 29th of August, where we see a northeast swell of 4 ft with a short period of 6 seconds. The wind is a clean offshore from the ENE at 16 mph, so the surface will be glassy. The combined energy of all swells is moderate (87), but the short period means the waves are going to be weak and crumbly. It’s surfable, but you’re not going to be writing home about it.

For a stretch of days from the 25th right through to the 28th, it’s basically flat – poor surf with zero energy. That’s a solid four-day gap of nothing.

Then we get into the second week. There’s a bit more energy showing up around the 1st of September, with a 4 ft swell from the northeast, but the wind is cross-offshore and the conditions are still rated poor. The energy is moderate (188), but the quality isn’t there. It’s a promising sign that the ocean is waking up, but it’s not a goer.

The only other little glimmer is on the 2nd of September afternoon, when the wind goes glassy and we get a 3 ft northeast swell. The period is 8 seconds, so still short period, but it’s clean. The energy is moderate (152). It’s about as good as it gets in this window, but it’s still very ordinary.

Bottom line: There’s no standout window here. If you’re desperate, the 29th of August afternoon is the cleanest, and the 2nd of September afternoon is the glassiest. But for a reef break that needs a proper NW groundswell to really fire, this is a long wait. Keep an eye on the forecasts, because a blank run like this is normal for the area when the swell direction is wrong. It won’t stay poor forever.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Mon afternoon, min 26°C on Sat night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Thu afternoon, min 25°C on Tue night). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
WNW
12
0.5
WNW
11
0.4
WNW
10
0.5
NW
11
0.5
NW
11
0.9
NE
6
0.6
SSW
13
0.5
SSW
16
0.6
SSW
16
0.6
SSW
15
0.7
SSW
14
0.8
S
18
0.7
S
19
0.4
NW
10
0.4
NW
10
0.4
NW
9
0.5
N
7
0.4
NNE
7
1
NE
6
Wave Graph
Metric surfscale
Energy kJ
125
68
40
63
55
54
0
0
0
0
0
0
0
24
23
23
25
15
83
Wind (km/h)
15
ENE
25
NE
25
ENE
20
ENE
15
ENE
15
ENE
15
ENE
15
ENE
20
ENE
20
ENE
20
ENE
25
NE
15
ENE
15
NE
25
NE
10
ENE
15
NE
25
ENE
15
E
Wind State
off
off
off
off
off
off
off
off
off
off
off
off
off
cross-off
off
off
off
off
off
High Tide
1:26AM0.20m
2:12PM0.62m
2:06AM0.23m
2:46PM0.64m
2:41AM0.26m
3:16PM0.65m
3:15AM0.30m
3:44PM0.65m
3:51AM0.34m
4:13PM0.63m
4:28AM0.38m
4:40PM0.59m
Low Tide
9:18PM0.16m
6:26AM0.10m
9:36PM0.14m
7:17AM0.08m
9:53PM0.13m
8:01AM0.06m
10:11PM0.11m
8:42AM0.05m
10:30PM0.10m
9:23AM0.06m
10:50PM0.08m
10:04AM0.07m
11:12PM0.07m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:55
6:54
6:53
6:52
6:52
 mm
Temp °C
26
27
28
26
28
29
27
28
29
26
26
27
26
27
29
25
28
28
25
Feels °C
27
27
27
27
30
29
28
29
29
26
25
26
26
27
28
25
28
27
24
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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