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Surf Forecasts:

Kua Bay surf break

Kua Bay surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 7 am Tuesday 17 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Kua Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kua Bay sea temperature is
25.3° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Kua Bay this week:

The surf forecast for Kua Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Mar 17) at 5PM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.4m and 13s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kua Bay in the next 16 days are 0.9m 13s and forecast to arrive on Wednesday (Mar 18) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 10s period and expected on Saturday (Mar 21) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Tue 17th Mar)2.5ft (0.8m) 9s
Best Surf11PM (Tue 17th Mar)2ft (0.6m) 14s
Most Powerful11AM (Wed 18th Mar)3ft (0.9m) 13s

Table - best surf conditions forecast for Kua Bay over the next 16 days.

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

Short Range Forecast Moderate rain (total 13mm), heaviest on Tue morning. Warm (max 26°C on Tue morning, min 24°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 32mm), heaviest during Sun night. Warm (max 26°C on Fri morning, min 21°C on Sun night). Wind will be generally light.

Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
2
1
1
1
0
0
1
1
1
1
0
0
0
1
0
1
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
W
0.8
W
0.7
N
0.9
N
0.9
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.7
N
0.3
SW
0.5
WNW
0.5
WNW
0.5
WNW
0.4
NW
0.4
WNW
0.4
WNW
0.4
WNW
0.4
WNW
0.3
SW
Period(s) (?)10914131212111111101019121212161414131314
Wave
Graph
(?)Metric surfscale
Energy kJ (?)18810619527624818416315514612810057818177638279686632
Wind
(km/h)
15
SW
0
NNW
5
SSE
10
WSW
10
NW
5
NNE
10
SW
5
WSW
10
S
20
SSW
20
SSW
15
SSW
10
WSW
10
WNW
5
NE
5
NW
5
NW
5
WNW
5
WNW
10
NNW
5
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crossglassglasscross-
on		onglasscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		crossoncrossglassonglasscross-
on		oncross-
on
High Tide
/ height (m)
3:23PM
0.58
3:26AM
0.72
3:58PM
0.66
3:57AM
0.67
4:36PM
0.72
4:28AM
0.61
5:16PM
0.76
5:00AM
0.53
6:01PM
0.78
5:32AM
0.45
6:52PM
0.77
6:06AM
0.37
7:54PM
0.74
Low Tide
/ height (m)
9:27AM
0.07
9:10PM
0.11
9:49AM
0.05
9:56PM
0.11
10:12AM
0.03
10:44PM
0.14
10:37AM
0.02
11:36PM
0.17
11:04AM
0.03
12:35AM
0.21
11:34AM
0.04
1:49AM
0.25
12:09PM
0.07
3:39AM
0.27
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Sunrise6:30--6:30--6:28--6:28--6:26--6:26--6:24--
Sunset-6:34--6:34--6:34--6:35--6:35--6:35--6:35-
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
mod rain
part cloud
rain showers
light rain
cloud
thunderstorm
heavy rain
light rain
light rain
heavy rain
Rain (mm)
33121---3236-22-1161130
Temp. °C262625252524262524262625252323242422232222
Feels °C (?)282927272626272727272626262526272626252424
  • 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 Kua Bay 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 Kua Bay at:
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Information about the Kua Bay Surf forecast

The above surf forecast table for Kua Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kua Bay can be found by selecting the local surf guide option on the grey menu. Our Kua Bay 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 (Kua Bay) 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 Kua Bay 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.

Kua Bay is 97 km (60 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.

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