Waimanalo surf break

Waimanalo surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Wednesday 17 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
26.6° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Waimanalo this week:

The most powerful waves expected at Waimanalo in the next 12 days are 1.8m 8s and forecast to arrive on Monday (Sep 22) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 16s period and expected on Saturday (Sep 20) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Mon 22nd Sep)6ft (1.8m) 8s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Thu night. Warm (max 25°C on Wed night, min 25°C on Wed night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Sun afternoon. Warm (max 25°C on Sat night, min 24°C on Tue morning). Mainly fresh winds.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
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 (?)
1.6
E
1.6
E
1.5
E
1.3
ENE
1.3
ENE
1.3
ENE
1.1
ENE
1.9
NE
1.8
ENE
1.7
ENE
1.7
ENE
1.7
ENE
1.8
ENE
1.7
ENE
1.5
ENE
1.3
ENE
1.3
ENE
1.3
ENE
1.4
ENE
1.4
ENE
1.3
ENE
Period(s) (?)666665677788888888667
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2062001671211089777375333263394374432379321224226187131132147
Wind
(km/h)
25
E
30
ENE
30
ENE
25
ENE
30
ENE
30
ENE
30
NE
35
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
30
ENE
30
ENE
20
ENE
25
ENE
30
ENE
30
ENE
35
ENE
30
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
ononononononononcross-
on
oncross-
on
ononcross-
on
onononcross-
on
on
High Tide
/ height (m)
12:30AM
0.35
1:30PM
0.66
1:09AM
0.41
1:51PM
0.63
1:46AM
0.45
2:08PM
0.60
2:22AM
0.49
2:22PM
0.57
2:58AM
0.52
2:35PM
0.53
3:34AM
0.55
2:46PM
0.50
4:10AM
0.55
2:57PM
0.46
Low Tide
/ height (m)
6:11AM
0.03
7:55PM
0.16
6:52AM
0.04
8:04PM
0.14
7:29AM
0.07
8:17PM
0.11
8:04AM
0.10
8:33PM
0.08
8:39AM
0.15
8:51PM
0.05
9:16AM
0.19
9:11PM
0.04
9:55AM
0.23
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
Sunrise-6:18--6:18--6:18--6:18--6:18--6:18--6:20-
Sunset--6:30--6:30--6:29--6:28--6:27--6:25--6:24
clear
clear
clear
thunderstorm
clear
thunderstorm
part cloud
clear
clear
clear
clear
rain showers
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
Rain (mm)
---1-1-----1---121---
Temp. °C252525252525252525252525252525252525252525
Feels °C (?)232323242424242423242424252424242423232223
  • 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 Saint Louis Heights wx mean that is clean at Waikiki. 0.7m 8s swell from the ESE with a 0.4m 11s groundswell from the S and a 0.2m 12s groundswell from the SW. 3 swells combining to make bigger set waves.

    Waikiki
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2 h 15 min ago

11 km/h
E
Cross-On
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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 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.


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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