Radz surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 am Monday 14 Jul 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
25.9° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 15) at 5AM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.7m and 7s. 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 0.6m 12s and forecast to arrive on Monday (Jul 14) 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 2.0m 8s period and expected on Saturday (Jul 19) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 15th Jul)1.5ft (0.5m) 11s
Best Surf 5AM (Tue 15th Jul)1.5ft (0.5m) 11s
Most Powerful 5PM (Mon 14th Jul)2ft (0.6m) 12s

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

Updates in  hr  min  s Forecast update imminent
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 (?)
0.5
NW
0.6
NW
0.5
NW
0.5
NW
0.5
NW
0.4
NW
0.4
NW
0.3
NW
0.3
NW
0.1
SW
0.1
SW
0.1
SW
0.1
SW
0.3
SW
0.1
W
0.3
SW
0.1
N
0.1
N
0.1
N
0.1
N
0.1
NW
0.1
NW
0.3
SW
1.2
NE
0.1
SW
0.1
SW
1
NE
0.6
NNE
0.3
SW
0.1
NW
0.3
SW
0.3
SW
0.3
SW
0.1
SW
0.1
SW
0.3
SW
Period(s) (?)111211101099881616161915101671013121111139222188198181818121116
Wave
Graph
(?)Metric surfscale
Energy (?)6793635646331911221213121735542133354312352221122446135548588844
Wind
(km/h)
25
E
25
ENE
15
ENE
25
E
25
E
25
ENE
35
ENE
30
ENE
25
E
25
ENE
30
ENE
25
ENE
25
ENE
30
ENE
30
E
30
E
30
E
30
E
30
E
30
E
30
E
30
E
30
E
25
E
30
E
25
E
30
E
30
E
30
E
35
E
30
E
25
E
30
E
30
E
25
E
25
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
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)
5:25PM
0.71
5:40AM
0.38
5:46PM
0.66
7:22AM
0.42
6:03PM
0.59
9:30AM
0.49
6:06PM
0.53
11:10AM
0.59
12:09PM
0.68
12:56PM
0.76
1:38PM
0.81
2:17PM
0.84
12:05AM
0.33
2:53PM
0.85
1:10AM
0.34
3:26PM
0.83
2:03AM
0.36
3:56PM
0.80
2:53AM
0.38
Low Tide
/ height (m)
9:57AM
0.16
12:38AM
0.24
10:38AM
0.25
1:07AM
0.21
11:30AM
0.36
1:41AM
0.17
1:13PM
0.46
2:23AM
0.13
3:13AM
0.10
4:10AM
0.07
5:07AM
0.04
6:02AM
0.01
10:07PM
0.32
6:51AM
-0.00
10:18PM
0.31
7:36AM
-0.00
10:36PM
0.30
8:17AM
0.02
10:56PM
0.29
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Sunrise5:56--5:56--5:58--5:58--5:58--5:58--5:58--6:00--6:00--6:01--6:01--6:01--
Sunset-7:17--7:16--7:16--7:16--7:16--7:15--7:15--7:15--7:15--7:15--7:15--7:14-
clearclearrain showersrain showersclearclearclearclearpart cloudclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearpart cloudpart cloudpart cloudclearclearpart cloudpart cloudpart cloudpart cloudclearpart cloud
Rain (mm)
--11--------------------------------
Temp. °C252625252625252525252525262625252525252525252525262625252625252525252524
Feels °C (?)242525242524232322232324252524232324232323232324242424232424242324232323

Short Range Forecast: Light rain (total 2mm), mostly falling on Mon night. Warm (max 26°C on Mon afternoon, min 24°C on Mon morning). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Fri morning, min 24°C on Fri night). Mainly fresh winds.

Days 6-9 Weather Summary Mostly dry. Warm (max 26°C on Tue morning, min 24°C on Sun morning). Mainly fresh winds.

Long Range Forecast: Mostly dry. Warm (max 26°C on Wed afternoon, min 24°C on Wed night). Mainly fresh winds.

  • 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 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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