Kua Bay surf break

Kua Bay surfForecast / HAW – Big Island / USA

information circle12 Day Weather and Surf, issued 1 am Tuesday 23 Dec 2025 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
26.3° C
(Which is 1.2°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Kua Bay this week:

The surf forecast for Kua Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 28) at 8PM. The primary swell is predicted to be 0.5m and 13s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kua Bay in the next 12 days are 0.8m 16s and forecast to arrive on Tuesday (Dec 30) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 9s period and expected on Tuesday (Dec 23) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 28th Dec)1.5ft (0.5m) 13s
Best Surf 2AM (Tue 30th Dec)1.5ft (0.5m) 17s
Most Powerful 8AM (Tue 30th Dec)2.5ft (0.8m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Wed afternoon. Warm (max 26°C on Tue morning, min 22°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Some drizzle, heaviest during Fri night. Warm (max 25°C on Sat morning, min 23°C on Fri morning). Wind will be generally light.

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
2
Swell
Height Map
Wave Height (m) & direction (?)
0.1
W
0.1
W
1.3
NNE
0.2
WNW
0.2
WNW
0.2
WNW
0.2
W
0.1
SW
0.1
SW
0.2
W
0.3
WNW
0.4
WNW
0.4
WNW
0.4
WNW
0.2
WNW
0.4
WNW
0.4
WNW
0.6
WNW
0.6
WNW
0.7
WNW
0.5
NNW
Period(s) (?)11119131211101312910109915141312111117
Wave
Graph
(?)Metric surfscale
Energy kJ (?)22016151287672032282721716911397105164
Wind
(km/h)
5
NW
5
NNE
10
ENE
10
W
5
W
5
SSE
5
SW
5
WSW
5
E
5
WSW
10
SW
0
SE
15
SSW
10
WNW
5
W
10
SW
5
WSW
5
SW
5
N
10
NNE
10
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
cross-
off
cross-
on
cross-
on
offcrossglassglassglasscrossglasscross-
off
cross-
on
glasscrossglassglasscross-
on
cross-
on
off
High Tide
/ height (m)
6:11PM
0.33
6:33AM
0.77
7:13PM
0.36
7:07AM
0.72
8:26PM
0.40
7:43AM
0.65
9:47PM
0.47
8:26AM
0.57
11:02PM
0.57
9:20AM
0.48
12:04AM
0.67
10:34AM
0.40
12:57AM
0.77
Low Tide
/ height (m)
1:18PM
0.15
11:12PM
0.14
1:52PM
0.14
11:58PM
0.20
2:27PM
0.13
1:01AM
0.28
3:03PM
0.12
2:34AM
0.35
3:42PM
0.10
4:43AM
0.38
4:25PM
0.08
6:46AM
0.34
5:12PM
0.06
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Sunrise6:54--6:54--6:54--6:56--6:56--6:56--6:56--
Sunset-5:51--5:51--5:52--5:52--5:52--5:52--5:53-
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
rain showers
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
light rain
light rain
Rain (mm)
----1------1-------14
Temp. °C262624242423242423242423252424242423242523
Feels °C (?)292925252526252525252425262526262626252624
  • 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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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 12 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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