Ranches surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 pm Sunday 12 Apr 2026 HST
Forecast update in hr  min  s Forecast update imminent
Ranches surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ranches sea temperature is
24.0° C
(Which is normal for this time of year)

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 Monday (Apr 13) at 2AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.5m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Ranches in the next 16 days are 1.4m 11s and forecast to arrive on Monday (Apr 13) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 12s period and expected on Wednesday (Apr 15) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 13th Apr)4.5ft (1.4m) 11s
Best Surf 2AM (Mon 13th Apr)4.5ft (1.4m) 11s
Most Powerful 2AM (Mon 13th Apr)4.5ft (1.4m) 11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 44mm), heaviest during Mon morning. Warm (max 24°C on Tue morning, min 20°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Warm (max 24°C on Wed night, min 23°C on Wed night). Wind will be generally light.

Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sun
19
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
2
1
2
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.4
NW
1.2
NW
0.9
NW
0.9
NW
0.7
NW
0.6
NW
0.6
NW
0.7
NW
0.6
NW
0.6
NW
0.6
NW
0.5
NW
0.6
SSW
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.4
W
0.6
W
Period(s) (?)111010101011111010988121413131212121515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)42330818016794779496796745350101878675736971150
Wind
(km/h)
5
N
15
SE
10
SW
10
SE
10
S
10
NW
10
NE
5
WSW
5
SW
10
E
5
NW
5
SSW
5
ESE
10
W
0
SW
10
SE
10
WSW
5
SW
5
ESE
0
W
5
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
off
cross-
on
cross-
off
cross-
on
cross-
on
offglassonoffglasscross-
on
cross-
off
onglasscross-
off
onglassglassglasson
High Tide
/ height (m)
1:27AM
0.45
2:14PM
0.31
2:03AM
0.42
2:50PM
0.39
2:39AM
0.39
3:28PM
0.47
3:16AM
0.34
4:09PM
0.54
3:54AM
0.28
4:52PM
0.59
4:33AM
0.22
5:39PM
0.62
5:16AM
0.16
6:31PM
0.63
Low Tide
/ height (m)
8:09AM
-0.02
7:50PM
0.05
8:30AM
-0.05
8:45PM
0.03
8:53AM
-0.08
9:40PM
0.02
9:19AM
-0.10
10:36PM
0.02
9:47AM
-0.11
11:37PM
0.02
10:19AM
-0.12
12:44AM
0.03
10:53AM
-0.11
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sun
19
Sunrise-6:15--6:13--6:13--6:13--6:11--6:11--6:09-
Sunset--6:51--6:52--6:52--6:52--6:52--6:52--6:52
heavy rain
heavy rain
cloud
light rain
part cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
cloud
cloud
Rain (mm)
2216-1-23-------13-11--
Temp. °C212323232424232424242424242424242424242425
Feels °C (?)232424252525252726272726262625272626272727
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quick surf report for Ranches:

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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 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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