Waipio Bay surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 7 pm Friday 27 Mar 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
24.5° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Waipio Bay this week:

The surf forecast for Waipio Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Mar 28) at 2AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.8m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Waipio Bay in the next 16 days are 2.3m 12s and forecast to arrive on Monday (Mar 30) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 10s period and expected on Thursday (Apr 02) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 28th Mar)3.5ft (1.1m) 9s
Best Surf 2AM (Sat 28th Mar)3.5ft (1.1m) 9s
Most Powerful 2AM (Mon 30th Mar)7.5ft (2.3m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 8mm), mostly falling on Sat morning. Warm (max 22°C on Fri night, min 20°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Tue morning. Warm (max 22°C on Tue afternoon, min 19°C on Mon night). Wind will be generally light.

Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Fri
03
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
0
0
0
0
2
3
2
1
2
1
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.1
NE
1.1
NE
0.8
NE
1.6
NNE
1.2
N
2
N
2.3
N
2.2
N
2.1
N
2.1
N
2.2
NNE
2.2
NNE
2
NNE
1.9
NNE
1.6
NNE
1.7
NE
1.8
NE
1.6
NE
1.2
NNE
1.4
NE
0.9
NNE
Period(s) (?)999791112121212111111101010109988
Wave
Graph
(?)Metric surfscale
Energy kJ (?)176225117222225986144713101194118711671132871726502524566384207244117
Wind
(km/h)
5
E
15
NE
20
NE
15
NE
15
NE
15
NE
10
NE
10
NE
15
NE
15
E
20
ENE
15
ENE
20
ENE
25
ENE
20
ENE
20
E
15
ENE
15
E
15
E
10
ENE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassononononononononcross-
on
ononcross-
on
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
on
High Tide
/ height (m)
12:16AM
0.84
12:29PM
0.51
12:55AM
0.84
1:14PM
0.60
1:28AM
0.83
1:52PM
0.69
1:56AM
0.79
2:28PM
0.76
2:22AM
0.75
3:02PM
0.81
2:46AM
0.70
3:35PM
0.85
3:09AM
0.64
4:08PM
0.86
Low Tide
/ height (m)
7:13AM
0.27
6:00PM
0.21
7:33AM
0.23
6:55PM
0.21
7:54AM
0.19
7:42PM
0.21
8:14AM
0.16
8:26PM
0.23
8:35AM
0.13
9:07PM
0.25
8:56AM
0.12
9:48PM
0.28
9:17AM
0.11
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Fri
03
Sunrise-6:18--6:18--6:16--6:16--6:16--6:15--6:13-
Sunset--6:35--6:35--6:36--6:36--6:36--6:36--6:37
part cloud
rain showers
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
rain showers
part cloud
part cloud
clear
cloud
part cloud
part cloud
clear
part cloud
Rain (mm)
-1241-----1-3--------
Temp. °C222222212121202122202122212222212222212323
Feels °C (?)232321202020192021191920202021192121212323
  • 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 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 16 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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