Waipio Bay surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 7 am Monday 04 May 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
25.3° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 06) at 5AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.6m and 11s. 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 1.3m 14s and forecast to arrive on Friday (May 08) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 6th May)3ft (0.9m) 8s
Best Surf 5AM (Wed 6th May)3ft (0.9m) 8s
Most Powerful 2AM (Fri 8th May)4.5ft (1.3m) 14s

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 3mm), mostly falling on Mon afternoon. Warm (max 26°C on Wed morning, min 23°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Thu afternoon. Warm (max 25°C on Thu morning, min 23°C on Fri night). Wind will be generally light.

Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.5
E
8
1.6
E
7
1.5
E
7
1.2
E
7
1.3
E
7
0.9
ESE
8
0.6
NNW
11
0.6
NNW
10
0.6
NNW
10
0.5
NW
16
0.8
NNW
12
1.3
NNW
14
1.2
NNW
13
1.1
NW
12
0.9
NW
12
0.7
NW
11
0.7
NW
11
0.9
E
8
0.9
E
8
1.1
E
8
1
NNW
13
Wave Graph
Metric surfscale
Energy kJ
265
279
242
150
173
107
78
73
70
133
191
653
451
353
205
130
121
103
113
163
312
Wind (km/h)
20
ENE
20
E
15
ESE
10
ENE
10
E
10
SE
5
NNE
10
E
10
ENE
15
ENE
15
E
15
ESE
20
E
20
E
15
E
15
ENE
15
ENE
10
E
10
NE
10
NE
10
E
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
High Tide
5:06PM0.88m
3:47AM0.45m
5:47PM0.85m
4:12AM0.43m
6:34PM0.81m
4:45AM0.40m
7:26PM0.79m
6:06AM0.38m
8:21PM0.77m
8:44AM0.39m
9:16PM0.75m
10:44AM0.46m
10:08PM0.73m
Low Tide
9:32AM0.09m
00:08AM0.37m
10:01AM0.12m
1:09AM0.39m
10:33AM0.15m
2:31AM0.39m
11:09AM0.20m
3:54AM0.37m
11:56AM0.25m
4:35AM0.33m
1:14PM0.32m
5:01AM0.28m
3:09PM0.38m
clear
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
light rain
rain showers
part cloud
rain showers
part cloud
clear
part cloud
part cloud
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:50
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:46
6:46
6:47
6:47
6:49
6:49
1
2
2
1
1
1
Temp °C
25
25
24
25
25
24
26
25
25
25
25
24
25
25
24
25
25
24
25
25
24
25
26
25
27
26
26
29
28
28
26
27
26
25
25
25
25
26
25
26
27
26
Swell 1
Height (m)
Direction
Period (s)
0.5
NW
11
0.4
NW
11
0.6
NW
13
0.7
NW
12
0.7
NW
12
0.9
ESE
8
0.7
ESE
8
0.7
ESE
8
0.7
ESE
8
0.8
ESE
8
0.8
NNW
12
1.3
NNW
14
1.2
NNW
13
1.1
NW
12
0.9
NW
12
0.7
NW
11
0.7
NW
11
0.6
NNW
11
0.9
E
8
0.6
NNW
10
1
NNW
13
Energy kJ
58
30
128
144
140
107
70
72
70
87
177
653
451
353
205
130
121
75
113
68
312
Swell 2
Height (m)
Direction
Period (s)
0.1
NW
14
0.4
NW
13
0.1
N
8
0.1
NE
10
0.1
NE
9
0.6
NW
11
0.6
NNW
11
0.6
NNW
10
0.6
NNW
10
0.5
NW
16
0.6
NW
15
0.3
NE
9
0.3
NE
9
0.1
N
11
0.2
NNE
9
0.2
NNE
8
0.1
NE
8
0.1
NE
8
0.6
NNW
11
0.4
NW
14
0.1
N
8
Energy kJ
7
44
1
4
3
96
78
73
65
133
191
13
12
2
7
7
3
3
76
54
1
Swell 3
Height (m)
Direction
Period (s)
0.1
N
9
0.1
E
11
0.1
NE
10
0.1
NE
9
0.4
NE
6
0.4
NE
7
0.4
NE
8
0.4
NE
8
0.5
NW
10
0.3
NE
7
0.1
N
12
0.1
N
11
0.2
NNE
5
0.1
N
10
0.2
N
9
0.1
N
9
0.2
NNW
15
0.1
NE
8
0.1
SE
13
Energy kJ
1
2
4
3
14
11
23
20
46
8
3
2
2
2
7
2
21
3
7
Wind waves
Height (m)
Direction
Period (s)
1.5
E
8
1.6
E
7
1.5
E
7
1.2
E
7
1.3
E
7
0.6
ENE
7
1
E
8
1.1
E
8
1.2
E
4
1.3
E
5
1
E
8
0.9
E
8
0.8
E
8
0.9
E
8
1.1
E
8
0.9
E
8
Energy kJ
265
279
242
150
173
33
130
165
56
80
118
92
71
103
163
107
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
2
1
1
1
Distance (km)
71
68
65
35
68
1
68
103
64
103
68
36
68
70
61
103
61
53
103
131
61
Best forecast wave conditions in Big Island
Rating
(10 max)
1
2
2
1
1
2
1
2
2
1
1
2
2
2
1
2
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
3
2
3
2
1
3
4
3
4
3
3
3
2
2
4
3
3
3
Header Global
Rating
(10 max)
5
5
5
4
5
5
5
6
6
5
5
6
5
7
9
4
4
4
9
9
8
  • 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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