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Surf Forecasts:

Waimanalo surf break

Waimanalo surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 1 pm Saturday 06 Sep 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
26.8° 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 Sunday (Sep 07) at 2AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.6m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Waimanalo in the next 12 days are 2.5m 11s and forecast to arrive on Tuesday (Sep 09) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 14s period and expected on Friday (Sep 12) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 7th Sep)2ft (0.6m) 11s
Best Surf 5AM (Wed 10th Sep)7.5ft (2.3m) 10s
Most Powerful11PM (Tue 9th Sep)8ft (2.5m) 11s

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

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

Short Range Forecast Light rain (total 5mm), mostly falling on Tue morning. Warm (max 27°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Wed afternoon, min 25°C on Tue night). Wind will be generally light.

Sat
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
2
1
0
0
0
0
0
0
1
3
2
2
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
E
0.6
E
0.8
E
0.9
E
0.8
ESE
0.8
ESE
0.9
ESE
1.2
E
2.1
E
2.4
E
2.5
ENE
1.4
ENE
1.3
E
1.4
E
1.3
E
1.1
E
1.1
E
0.6
NNW
0.6
NNW
0.7
NNW
0.7
NNW
Period(s) (?)111113121313131312111199887813131212
Wave
Graph
(?)Metric surfscale
Energy (?)240250297331302280326602135915541549495356285206192207247233260271
Wind
(km/h)
15
ENE
5
E
10
E
10
ENE
15
E
20
ENE
25
ENE
20
ENE
25
ENE
20
NNE
10
NNW
10
SSE
10
S
15
SE
15
ENE
20
ENE
20
ENE
20
ENE
25
ENE
25
E
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onglasscross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		ononcrosscross-
off		cross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
2:30PM
0.68
2:04AM
0.46
2:51PM
0.66
2:52AM
0.51
3:12PM
0.62
3:44AM
0.54
3:31PM
0.57
4:39AM
0.57
3:47PM
0.51
5:41AM
0.58
3:54PM
0.45
6:59AM
0.57
3:32PM
0.41
8:47AM
0.58
Low Tide
/ height (m)
8:40PM
0.13
8:00AM
0.01
9:04PM
0.09
8:42AM
0.06
9:31PM
0.05
9:27AM
0.13
9:59PM
0.02
10:18AM
0.20
10:31PM
-0.00
11:18AM
0.27
11:06PM
-0.00
12:53PM
0.34
11:49PM
0.01
Sat
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sunrise--6:15--6:15--6:16--6:16--6:16--6:16--6:16
Sunset6:42--6:40--6:39--6:38--6:37--6:37--6:36--
clear
clear
clear
clear
rain showers
clear
clear
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
Rain (mm)
----1---4------------
Temp. °C272625262625252526262626272626262626262625
Feels °C (?)272628272824242526262628282927262727262625
  • 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 Continuing clean conditions at Waimanalo (calm at Maunalani Heights wx 10 km from Waimanalo). 0.6m 10s swell from the NNW with a 0.5m 6s windswell from the ENE. 2 swells combining to make bigger set waves.

    26 minutes ago Waimanalo
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Actual: 26 min ago

3 km/h
SSE
Clean
Please reload the page to see if there are any updates.

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 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.

View detailed surf forecast for Waimanalo at:
surf-forecast.com

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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