Radz surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 1 am Monday 15 Sep 2025 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
26.9° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Radz this week:

The most powerful waves expected at Radz in the next 12 days are 0.7m 10s and forecast to arrive on Friday (Sep 19) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Sunday (Sep 21) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Fri 19th Sep)2.5ft (0.7m) 10s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 26°C on Mon morning, min 24°C on Mon night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Fri night. Warm (max 26°C on Thu morning, min 25°C on Thu morning). Mainly fresh winds.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
N
0.7
N
0.6
N
0.5
N
0.4
N
0.4
N
0.3
N
0.4
NNW
0.7
N
0.7
N
0.7
N
0.8
NNE
0.7
N
0.6
N
0.5
N
0.4
NW
0.4
NW
0.5
NW
0.5
NW
0.5
NW
0.5
NW
Period(s) (?)10109988798887101010131212111110
Wave
Graph
(?)Metric surfscale
Energy (?)95905951212216266770801301209848886996585549
Wind
(km/h)
20
E
20
ENE
25
ENE
25
E
25
ENE
25
E
30
E
30
E
30
E
30
E
30
ENE
25
ENE
25
E
30
ENE
30
ENE
30
E
30
E
30
E
30
E
30
E
30
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
11:30AM
0.71
12:14PM
0.73
11:38PM
0.31
12:49PM
0.73
12:28AM
0.38
1:17PM
0.72
1:08AM
0.44
1:41PM
0.70
1:44AM
0.50
2:01PM
0.66
2:19AM
0.55
2:19PM
0.62
2:53AM
0.59
Low Tide
/ height (m)
3:47AM
0.17
8:02PM
0.27
5:07AM
0.15
7:58PM
0.25
6:03AM
0.15
8:04PM
0.23
6:49AM
0.15
8:13PM
0.21
7:30AM
0.17
8:25PM
0.19
8:08AM
0.21
8:38PM
0.17
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Sunrise6:18--6:18--6:18--6:18--6:18--6:20--6:20--
Sunset-6:35--6:34--6:32--6:31--6:30--6:30--6:29-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
part cloud
clear
clear
clear
Rain (mm)
-----------1212------
Temp. °C262625252625262625262625262625252625262625
Feels °C (?)252524242523252524252523262524242524242524
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Oahu

  1. weather stationWind Update calm at BUOY-OOUH1 mean that is clean at Waikiki. 0.6m 8s swell from the SE with a 0.3m 13s groundswell from the SSW and a 0.3m 11s groundswell, also from the SSW. 3 swells combining to make bigger set waves.

    Waikiki
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26 km away, 2 h 5 min ago

9 km/h
NW
0.0
26.9
Air / Water (°C)
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FREE! Surf-Forecast.com widget for your website

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.


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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