Waimanalo surf break

Waimanalo surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 1 pm Sunday 07 Dec 2025 HST
Forecast update in hr  min  s Forecast update imminent
Waimanalo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanalo sea temperature is
25.7° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Waimanalo this week:

The surf forecast for Waimanalo over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 10) at 2AM. The primary swell is predicted to be 1.7m and 17s period with a secondary swell of 0.8m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Waimanalo in the next 12 days are 1.8m 16s and forecast to arrive on Wednesday (Dec 10) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Dec 11) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 10th Dec)5.5ft (1.7m) 17s
Best Surf 2AM (Wed 10th Dec)5.5ft (1.7m) 17s
Most Powerful 5AM (Wed 10th Dec)6ft (1.8m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Sun afternoon. Warm (max 24°C on Sun afternoon, min 22°C on Wed morning). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Thu morning. Warm (max 25°C on Wed afternoon, min 22°C on Thu afternoon). Wind will be generally light.

Sun
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
1
4
4
4
3
3
2
0
2
2
3
3
2
2
1
Swell
Height Map
Wave Height (m) & direction (?)
1
NNW
0.9
NNW
1.1
E
0.5
NW
0.7
NW
0.9
NW
1.2
NW
1.7
NW
1.8
NW
1.7
NNW
1.4
NW
1.5
NNW
1.7
NNW
1.3
NNW
1.4
NNW
1.3
NNW
1.4
NNW
1.4
NNW
1.3
N
1.1
N
0.8
N
Period(s) (?)13128161414141715141313121212111112111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)339203142121206293548159914531111711749787429550387495560433291141
Wind
(km/h)
25
ENE
20
ENE
25
ENE
25
ENE
20
ENE
10
ENE
10
NE
5
SE
10
SW
25
SW
20
WSW
10
W
5
NNE
15
ENE
10
ENE
10
SSE
10
S
15
SSW
10
SW
10
S
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
onglassoffoffoffcross-
off
ononcross-
on
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
High Tide
/ height (m)
2:17PM
0.27
6:11AM
0.68
6:59AM
0.63
4:38PM
0.22
7:42AM
0.58
8:23PM
0.22
8:20AM
0.52
11:00PM
0.30
8:52AM
0.47
12:11AM
0.39
9:17AM
0.42
12:51AM
0.47
9:40AM
0.38
Low Tide
/ height (m)
9:56PM
-0.08
10:42PM
-0.01
3:34PM
0.19
11:29PM
0.06
3:51PM
0.16
12:24AM
0.15
4:12PM
0.12
1:52AM
0.23
4:32PM
0.08
4:02AM
0.29
4:53PM
0.04
6:01AM
0.30
Sun
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunrise--6:56--6:56--6:56--6:58--6:58--6:58--6:58
Sunset5:47--5:47--5:49--5:49--5:49--5:50--5:50--
thunderstorm
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
clear
Rain (mm)
1----------4422------
Temp. °C242424242424242424252423232323242424252424
Feels °C (?)222322222325252625242424262424262624242626
  • 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 Waimanalo 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.


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Information about the Waimanalo Surf forecast

The above surf forecast table for Waimanalo provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Waimanalo can be found by selecting the local surf guide option on the grey menu. Our Waimanalo 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 (Waimanalo) 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 Waimanalo 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.

Waimanalo is 7 km (4 miles) from Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.

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