Surf Break

Lat Long: 21.70° N 158.01° W

Radz Surf Forecast and Surf Report

Issued: 7 pm 18 Oct 2026 (local time)

Forecast update in  hr  min

Today's Radz sea temperature is
26.8°C
0.1° 

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


Radz surf forecast from 19 Oct 2026:

  • Best quality surf: Sunday 25 Oct, 2AM (local time) - 6ft (1.9m), 12s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 24 Oct, 11PM (local time) - 6ft (1.9m), 12s period, NNW swell with 983 kJ wave energy.
  • Next surfable swell (1★+): Friday 23 Oct, 5AM (local time) - 2.5ft (0.7m), 12s period with NW swell.

Best Forecast Surf Conditions for Radz this week:

The surf forecast for Radz over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Oct 23) at 5AM. The primary swell is predicted to be 0.7m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Radz in the next 16 days are 1.9m 12s and forecast to arrive on Saturday (Oct 24) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Monday (Oct 19) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 23rd Oct)2.5ft (0.7m) 12s
Best Surf 2AM (Sun 25th Oct)6ft (1.9m) 12s
Most Powerful11PM (Sat 24th Oct)6ft (1.9m) 12s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Warm (max 25°C on Sun night, min 24°C on Sun night). Mainly strong winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light.

Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
NNW
11
0.7
N
11
0.6
N
11
0.5
N
11
0.4
NNW
10
0.4
NNW
10
0.4
N
10
0.3
NW
13
0.3
NW
12
0.4
NW
12
0.4
NW
13
0.6
NW
11
0.7
NW
12
0.7
NW
11
0.7
NW
11
0.7
NW
11
0.9
NNW
14
1.5
NNW
13
1.9
NNW
12
Wave Graph
Metric surfscale
Energy kJ
156
116
89
61
35
34
30
25
24
51
44
77
139
119
114
110
366
721
950
Wind (km/h)
35
E
35
E
35
ENE
35
ENE
35
E
35
ENE
30
E
30
E
25
ENE
20
E
20
E
20
ENE
15
E
20
ENE
20
ENE
20
ENE
20
ENE
20
NE
15
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
High Tide
11:09PM0.26m
10:39AM0.62m
11:36PM0.32m
11:11AM0.62m
00:05AM0.40m
11:38AM0.62m
00:36AM0.48m
12:02PM0.60m
1:08AM0.57m
12:25PM0.57m
1:43AM0.65m
12:48PM0.53m
2:20AM0.72m
Low Tide
8:07PM0.25m
6:47PM0.25m
3:32AM0.28m
6:32PM0.23m
4:53AM0.28m
6:32PM0.20m
5:54AM0.29m
6:41PM0.16m
6:49AM0.29m
6:55PM0.11m
7:41AM0.30m
7:14PM0.07m
clear
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
6:28
—
—
6:28
—
—
6:30
—
—
6:30
—
—
6:31
—
—
6:31
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:05
—
6:04
—
—
6:02
—
—
6:01
—
—
6:01
—
—
6:00
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6:00
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 mm
—
—
—
1
1
1
—
1
—
—
—
—
—
—
—
—
—
—
—
Temp °C
25
25
25
25
25
25
25
25
25
25
25
26
25
25
25
24
25
25
24
Feels °C
21
21
22
21
22
21
21
21
23
23
25
26
25
25
25
24
25
25
24
  • 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 Radz Surf forecast

The above surf forecast table for Radz provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Radz can be found by selecting the local surf guide option on the grey menu. Our Radz 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 (Radz) 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 Radz 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.

Radz 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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