Radz surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 1 am Saturday 02 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Radz surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Radz sea temperature is
24.5° C
(Which is normal for this time of year)

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 Tuesday (May 05) at 2AM. The primary swell is predicted to be 1.4m 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 1.7m 14s and forecast to arrive on Thursday (May 07) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 8s period and expected on Saturday (May 02) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 5th May)4.5ft (1.4m) 12s
Best Surf 2AM (Tue 5th May)4.5ft (1.4m) 12s
Most Powerful 5PM (Thu 7th May)5.5ft (1.7m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 24°C on Sat afternoon, min 22°C on Sat night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Tue afternoon, min 22°C on Wed night). Wind will be generally light.

Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
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
2
1
1
0
0
1
2
3
2
2
2
0
1
2
2
3
3
2
2
2
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.4
NW
14
1.3
NW
14
1.2
NW
13
1.1
NW
12
1
NW
12
0.8
NW
11
1
NW
13
1.3
NW
13
1.4
NW
12
1.3
NW
12
1.2
NW
11
1.1
NW
11
1
NW
10
1
NW
10
0.8
NW
17
1.1
NW
15
1.7
NNW
14
1.7
NNW
13
1.6
NW
12
1.4
NW
12
1.2
NW
12
Wave Graph
Metric surfscale
Energy kJ
821
586
473
319
272
168
330
572
561
425
354
297
196
192
330
499
1244
1061
754
580
383
Wind (km/h)
25
E
25
E
25
ENE
25
ENE
25
ENE
25
E
25
ENE
20
ENE
15
E
5
ENE
5
ENE
5
SW
10
NNE
15
NNE
10
ENE
15
ENE
20
ENE
15
E
15
E
20
E
15
ESE
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
3:47PM0.74m
1:36AM0.39m
4:24PM0.73m
1:25AM0.37m
5:05PM0.70m
5:53PM0.68m
6:48PM0.66m
7:47PM0.64m
8:41PM0.63m
Low Tide
8:02AM0.06m
10:51PM0.36m
8:25AM0.06m
00:02AM0.37m
8:50AM0.07m
9:17AM0.08m
9:44AM0.11m
10:13AM0.15m
10:44AM0.20m
clear
clear
rain showers
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
5:58
5:58
5:58
5:56
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:58
6:58
6:59
6:59
7:00
7:00
1
Temp °C
23
24
23
23
24
23
24
24
23
24
25
24
24
24
23
23
23
23
24
24
24
20
22
21
21
23
21
22
23
22
26
28
26
26
25
24
24
22
23
24
24
25
Swell 1
Height (m)
Direction
Period (s)
1.4
NW
14
1.3
NW
14
1.2
NW
13
1.1
NW
12
1
NW
12
0.8
NW
11
1
NW
13
1.3
NW
13
1.4
NW
12
1.3
NW
12
1.2
NW
11
1.1
NW
11
1
NW
10
1
NW
10
0.9
NW
10
1.1
NW
15
1.7
NNW
14
1.7
NNW
13
1.6
NW
12
1.4
NW
12
1.2
NW
12
Energy kJ
821
586
473
319
272
168
330
572
561
425
354
297
196
192
137
499
1244
1061
754
580
383
Swell 2
Height (m)
Direction
Period (s)
0.2
S
14
0.2
SSW
14
0.2
SSW
16
0.2
SSW
16
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.2
SSW
13
0.3
ESE
9
1
E
8
0.9
E
8
0.8
E
8
0.8
E
8
0.8
E
8
0.8
NW
17
0.8
NNW
9
0.5
E
8
0.5
E
8
0.5
E
8
0.5
E
8
0.4
ESE
8
Energy kJ
16
20
25
25
21
21
19
17
16
120
97
78
80
82
330
103
33
34
36
35
22
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
18
0.1
S
18
0.1
SW
16
0.2
S
13
0.1
S
21
0.2
SSW
19
0.1
SW
19
0.1
SW
19
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
16
0.2
SSW
16
0.4
NW
18
0.7
E
8
0.7
NNW
12
0.3
NE
10
0.1
NE
9
0.2
NNE
9
0.2
SSW
16
0.2
SSW
16
Energy kJ
30
6
10
13
9
37
15
15
31
31
30
26
25
83
66
119
16
3
8
25
24
Wind waves
Height (m)
Direction
Period (s)
1.7
ENE
8
1.6
ENE
8
1.6
ENE
8
1.5
ENE
8
1.3
ENE
8
1.3
ENE
8
1.5
ENE
7
1.4
ENE
8
1
ENE
7
0.4
N
6
0.6
E
8
0.4
E
4
0.3
E
4
0.5
NE
3
0.9
NE
5
Energy kJ
318
266
280
259
223
207
222
204
117
13
44
6
3
6
38
Nearest Offshore or Glassy
Rating
(10 max)
3
3
2
2
1
1
2
3
3
2
2
2
1
2
2
3
4
4
3
3
2
Distance (km)
8
8
8
30
154
8
8
8
0
0
0
0
8
8
0
7
33
4
2
8
0
Best forecast wave conditions in Oahu
Rating
(10 max)
3
3
2
2
1
2
3
3
2
2
2
1
2
2
3
4
4
3
3
2
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
2
1
2
3
3
3
2
2
3
2
2
3
3
4
4
3
3
4
Header Global
Rating
(10 max)
4
4
4
4
4
4
5
4
5
5
4
5
8
5
5
5
7
5
6
6
9
  • 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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