Ranches surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 am Friday 22 May 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
25.7° 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 Sunday (May 24) at 2AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.7m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Ranches in the next 16 days are 1.8m 8s and forecast to arrive on Saturday (May 23) at 2PM. 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 Tuesday (May 26) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 24th May)5ft (1.6m) 8s
Best Surf 2AM (Sun 24th May)5ft (1.6m) 8s
Most Powerful 2PM (Sat 23rd May)6ft (1.8m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Fri afternoon, min 23°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Tue afternoon, min 23°C on Mon morning). Wind will be generally light.

Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
1
2
3
1
1
2
2
1
1
1
2
2
2
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
NE
8
1.7
NE
7
1.6
NE
8
1.9
NE
8
1.7
NE
8
1.6
NE
8
1.5
NE
8
1.6
NE
8
1.6
NE
8
1.2
NE
8
1.3
NE
8
1.2
NE
8
1.2
NE
8
0.6
NW
18
0.7
NW
16
0.9
NW
14
1
NW
14
0.9
NW
13
0.8
NW
12
0.9
NW
12
0.8
NW
12
Wave Graph
Metric surfscale
Energy kJ
270
311
321
440
401
349
306
338
322
187
227
164
164
203
254
350
355
286
210
212
167
Wind (km/h)
30
ENE
35
NE
25
ENE
35
ENE
35
ENE
25
ENE
30
ENE
25
ENE
25
ENE
20
ENE
25
ENE
25
ENE
20
ENE
25
NE
15
ENE
15
NE
25
ENE
15
ENE
20
NE
25
ENE
10
E
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
10:50AM0.15m
9:57PM0.48m
12:02PM0.23m
10:50PM0.41m
12:55PM0.31m
11:40PM0.34m
1:37PM0.39m
00:26AM0.27m
2:14PM0.46m
1:10AM0.22m
2:47PM0.52m
1:51AM0.18m
3:19PM0.56m
2:31AM0.14m
Low Tide
2:43PM0.11m
5:30AM-0.05m
4:29PM0.16m
6:03AM-0.05m
6:09PM0.17m
6:31AM-0.06m
7:34PM0.16m
6:57AM-0.06m
8:43PM0.13m
7:21AM-0.06m
9:41PM0.11m
7:45AM-0.07m
10:30PM0.09m
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:50
5:50
5:50
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:07
7:07
7:08
7:08
7:08
Temp °C
24
25
23
23
24
23
24
25
23
25
25
23
25
26
24
25
26
24
25
26
24
22
21
20
19
20
20
20
21
21
23
22
22
23
24
23
24
23
23
24
25
23
Swell 1
Height (m)
Direction
Period (s)
0.5
S
15
0.5
S
14
0.6
S
16
0.5
S
16
0.7
S
15
0.7
NW
13
0.7
NW
12
0.7
NW
12
0.6
NW
11
0.6
S
14
0.5
S
13
1.2
NE
8
1.2
NE
8
0.6
NW
18
0.7
NW
16
0.9
NW
14
1
NW
14
0.9
NW
13
0.8
NW
12
0.9
NW
12
0.8
NW
12
Energy kJ
109
94
188
125
215
180
152
144
101
142
87
164
164
203
254
350
355
286
210
212
167
Swell 2
Height (m)
Direction
Period (s)
0.4
NNW
10
0.5
NW
11
0.5
NW
11
0.4
NNW
16
0.7
NNW
15
0.6
S
15
0.5
S
14
0.5
S
13
0.6
S
14
0.5
NW
11
0.5
NW
11
0.5
S
13
0.6
S
16
0.5
S
12
0.6
S
15
0.6
S
14
0.6
S
14
0.6
S
13
0.7
S
12
0.6
S
12
0.6
S
12
Energy kJ
41
57
56
102
191
155
93
92
140
58
56
84
178
73
150
144
129
121
146
103
101
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
12
0.4
S
18
0.4
SSW
13
0.4
NNW
10
0.4
NNW
10
0.4
NW
10
0.3
S
16
0.3
S
16
0.1
SW
20
0.1
SW
20
0.2
SSE
7
0.4
NW
10
0.4
NW
10
0.3
S
16
0.2
NNW
9
0.2
SSE
6
0.3
SSE
8
0.4
NW
16
0.3
SW
16
0.3
S
23
0.5
S
21
Energy kJ
37
98
60
40
39
24
46
46
16
15
4
27
24
45
8
3
13
66
40
91
229
Wind waves
Height (m)
Direction
Period (s)
1.5
NE
8
1.7
NE
7
1.6
NE
8
1.9
NE
8
1.7
NE
8
1.6
NE
8
1.5
NE
8
1.6
NE
8
1.6
NE
8
1.2
NE
8
1.3
NE
8
0.2
ESE
7
1.4
ENE
7
1.3
NE
8
1.3
NE
7
1.1
NE
7
1.1
NE
7
0.8
NE
7
0.8
NE
7
1.1
NE
7
1
NE
7
Energy kJ
270
311
321
440
401
349
306
338
322
187
227
4
193
200
176
112
128
67
63
106
100
Nearest Offshore or Glassy
Rating
(10 max)
3
1
3
3
2
3
3
2
2
2
1
1
1
2
2
2
2
2
2
2
2
Distance (km)
154
154
154
162
154
0
156
171
0
0
173
0
0
0
0
0
0
0
0
0
0
Best forecast wave conditions in Oahu
Rating
(10 max)
3
2
2
1
1
2
2
2
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
3
3
4
2
3
2
1
3
1
2
3
2
2
5
2
2
4
Header Global
Rating
(10 max)
5
4
8
5
5
5
5
5
5
4
5
5
5
6
6
6
5
7
9
9
7
  • 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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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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