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Surf Forecasts:

Radz surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 1 pm Friday 30 Jan 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
24.6° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Radz this week:

The surf forecast for Radz over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 31) at 2AM. The primary swell is predicted to be 4.0m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Radz in the next 12 days are 5.5m 15s and forecast to arrive on Tuesday (Feb 03) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 8s period and expected on Saturday (Jan 31) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 31st Jan)13ft (4.0m) 16s
Best Surf 2AM (Sat 31st Jan)13ft (4.0m) 16s
Most Powerful 2PM (Tue 3rd Feb)18ft (5.5m) 15s

Table - best surf conditions forecast for Radz over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Fri afternoon. Warm (max 25°C on Sun afternoon, min 21°C on Fri night). Winds increasing (light winds from the S on Sat night, fresh winds from the SW by Mon morning).

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Mon night. Warm (max 25°C on Mon afternoon, min 21°C on Tue night). Winds decreasing (fresh winds from the WSW on Mon afternoon, light winds from the W by Thu morning).

Fri
30
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
5
9
6
5
4
3
1
1
1
0
0
7
7
7
7
7
5
4
3
4
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
4
NW
4
NW
3.5
NW
3
NW
2.4
NW
1.9
NW
1.5
NW
1.1
NW
1.9
W
1.8
NW
4
NW
5.5
NW
5
NW
4.5
NW
4.5
NW
4.5
NW
3.5
NW
3
NW
2.5
NW
1.7
NNW
3
NW
Period(s) (?)171615141313121211121415151515151413121213
Wave
Graph
(?)Metric surfscale
Energy kJ (?)779884835050338819521185614303894923586312136114238994902285474792307621388382445
Wind
(km/h)
15
NNE
15
ENE
15
E
10
E
5
S
10
WSW
15
SW
20
SSW
35
SW
35
WSW
30
NW
15
NNW
15
NW
15
WNW
15
N
15
NE
15
E
5
W
15
WSW
10
SSW
10
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscross-
off		crosscrossoncross-
on		ononcross-
on		crosscross-
off		cross-
on		crosscross-
off		cross-
on
High Tide
/ height (m)
2:34AM
0.85
1:06PM
0.36
3:06AM
0.85
1:58PM
0.39
3:35AM
0.82
2:46PM
0.42
4:00AM
0.77
3:34PM
0.44
4:21AM
0.71
4:23PM
0.46
4:37AM
0.65
5:17PM
0.47
4:45AM
0.59
Low Tide
/ height (m)
6:37PM
-0.00
9:48AM
0.30
7:24PM
-0.01
10:04AM
0.28
8:06PM
0.01
10:23AM
0.27
8:45PM
0.06
10:42AM
0.25
9:22PM
0.13
11:02AM
0.23
9:56PM
0.21
11:22AM
0.21
10:30PM
0.30
11:43AM
0.20
Fri
30
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Sunrise--7:09--7:09--7:09--7:09--7:07--7:07--7:07
Sunset6:20--6:20--6:21--6:22--6:22--6:22--6:22--
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
1---------5----------
Temp. °C232223232224252325252422222223232123242223
Feels °C (?)232123232325252422212119211921221923222123
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Radz 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.

View detailed surf forecast for Radz at:
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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 12 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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