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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 Friday 13 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
25.4° 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 2AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.2m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kua Bay in the next 16 days are 1.9m 11s and forecast to arrive on Monday (Mar 16) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Saturday (Mar 14) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 17th Mar)4.5ft (1.3m) 10s
Best Surf 2AM (Tue 17th Mar)4.5ft (1.3m) 10s
Most Powerful 5AM (Mon 16th Mar)6ft (1.9m) 11s

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 Heavy rain (total 67mm), heaviest during Fri afternoon. Warm (max 26°C on Sun night, min 23°C on Fri morning). Winds increasing (light winds from the SSE on Fri morning, strong winds from the S by Fri night).

Days 3-6 Weather Summary Heavy rain (total 36mm), heaviest during Wed morning. Warm (max 26°C on Mon morning, min 22°C on Tue night). Wind will be generally light.

Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
1
2
1
2
2
1
0
2
2
2
1
1
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
WNW
0.7
WNW
0.8
W
1
W
1.3
WSW
1.1
WNW
1.7
W
1.8
W
1.8
W
1.8
W
1.6
W
1.3
W
1.1
W
0.9
WNW
0.9
WNW
0.7
N
0.8
N
0.9
N
0.9
N
0.9
N
0.9
N
Period(s) (?)1010108891010111110101099131212121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)133104117131235206592663776730524332226144121163196232214203189
Wind
(km/h)
30
S
35
S
45
S
45
S
40
S
40
S
40
S
30
SSE
25
S
25
SSW
25
SSW
15
S
15
WSW
10
N
5
N
5
ENE
5
SSE
10
N
5
SW
0
NNW
10
NE
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		crosscross-
on		glassglassglasscross-
on		crossglasscross
High Tide
/ height (m)
1:01PM
0.30
1:17AM
0.70
1:40PM
0.35
1:53AM
0.74
2:14PM
0.42
2:25AM
0.75
2:48PM
0.50
2:56AM
0.75
3:23PM
0.58
3:26AM
0.72
3:58PM
0.66
3:57AM
0.67
4:36PM
0.72
4:28AM
0.61
Low Tide
/ height (m)
8:20AM
0.20
5:46PM
0.19
8:33AM
0.16
6:48PM
0.16
8:49AM
0.13
7:38PM
0.13
9:08AM
0.10
8:25PM
0.11
9:27AM
0.07
9:10PM
0.11
9:49AM
0.05
9:56PM
0.11
10:12AM
0.03
10:44PM
0.14
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Sunrise6:33--6:33--6:31--6:31--6:30--6:30--6:28--
Sunset-6:32--6:32--6:32--6:32--6:34--6:34--6:34-
mod rain
heavy rain
heavy rain
thunderstorm
thunderstorm
rain showers
light rain
light rain
rain showers
thunderstorm
thunderstorm
thunderstorm
rain showers
light rain
light rain
mod rain
mod rain
light rain
light rain
rain showers
rain showers
Rain (mm)
101713945522225432873131
Temp. °C232325252425252426262625252424222323242424
Feels °C (?)242020212022222125252526272726232625262628
  • 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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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 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:
surf-forecast.com

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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