Waipio Bay surfForecast / HAW – Big Island / USA

information circle12 Day Weather and Surf, issued 7 pm Saturday 03 Jan 2026 HST
Forecast update in hr  min  s Forecast update imminent
Waipio Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waipio Bay sea temperature is
25.6° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Waipio Bay this week:

The surf forecast for Waipio Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jan 04) at 5AM. The primary swell is predicted to be 1.6m and 12s period with a secondary swell of 0.3m and 13s. Another secondary swell of 1.3m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Waipio Bay in the next 12 days are 3.5m 8s and forecast to arrive on Tuesday (Jan 06) 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 14s period and expected on Thursday (Jan 08) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 4th Jan)5ft (1.6m) 12s
Best Surf11AM (Tue 6th Jan)10ft (3.0m) 9s
Most Powerful 2AM (Tue 6th Jan)11ft (3.5m) 8s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 96mm), heaviest during Mon night. Warm (max 24°C on Sun morning, min 21°C on Sun afternoon). Winds decreasing (strong winds from the E on Mon night, light winds from the ENE by Tue afternoon).

Days 3-6 Weather Summary Heavy rain (total 37mm), heaviest during Wed night. Warm (max 25°C on Fri morning, min 23°C on Tue night). Wind will be generally light.

Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Sat
10
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
0
0
0
0
0
!
3
3
2
3
2
1
2
1
2
2
2
0
1
Swell
Height Map
Wave Height (m) & direction (?)
1.4
N
1.4
NNE
1.3
NNE
1.3
NNE
1.4
NNE
1.6
NNE
3.5
E
3
E
2.5
E
2.5
E
2.1
E
2.3
ESE
2.1
ESE
2
ESE
1.4
E
1.1
E
1.3
ESE
0.9
ESE
0.6
NNW
0.8
E
0.5
NW
Period(s) (?)12121211111089888888888811816
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5285324624464524601502120110388665977025605232601692341159082133
Wind
(km/h)
20
ESE
15
ESE
20
ESE
25
ESE
30
E
35
E
40
E
20
E
10
ENE
5
E
10
ESE
10
ESE
15
ESE
15
ESE
5
ESE
10
SE
5
NW
5
ESE
5
WNW
5
NNW
5
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrosscrossglasscrosscrossglassglasscrosscross
High Tide
/ height (m)
4:04AM
1.08
3:18PM
0.49
4:40AM
1.04
4:05PM
0.50
5:14AM
0.97
4:56PM
0.50
5:44AM
0.89
5:55PM
0.50
6:10AM
0.80
7:11PM
0.51
6:32AM
0.72
9:00PM
0.54
6:49AM
0.64
Low Tide
/ height (m)
8:37PM
-0.05
10:54AM
0.28
9:18PM
-0.01
11:30AM
0.28
9:57PM
0.06
12:06PM
0.27
10:35PM
0.16
12:42PM
0.26
11:13PM
0.27
1:19PM
0.26
11:56PM
0.39
1:59PM
0.25
1:03AM
0.49
2:44PM
0.23
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Sat
10
Sunrise-6:58--6:58--6:58--6:58--6:58--6:58--6:58-
Sunset--5:55--5:55--5:57--5:57--5:58--5:59--5:59
light rain
light rain
light rain
light rain
cloud
light rain
heavy rain
heavy rain
heavy rain
rain showers
rain showers
thunderstorm
heavy rain
mod rain
light rain
rain showers
part cloud
rain showers
clear
part cloud
rain showers
Rain (mm)
4251-3333018313161011-2--2
Temp. °C232422232323222222232424232424242525242524
Feels °C (?)232422212120192122242628252526272829282827
  • 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

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Information about the Waipio Bay Surf forecast

The above surf forecast table for Waipio Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Waipio Bay can be found by selecting the local surf guide option on the grey menu. Our Waipio 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 (Waipio 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 Waipio 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.

Waipio Bay is 68 km (42 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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