Waipio Bay surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 7 am Friday 22 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
25.9° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Waipio Bay this week:

The most powerful waves expected at Waipio Bay in the next 16 days are 2.2m 8s and forecast to arrive on Friday (May 22) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 11s period and expected on Sunday (May 24) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Fri 22nd May)7ft (2.2m) 8s

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 2mm), mostly falling on Fri night. Warm (max 25°C on Sun morning, min 22°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Mon night. Warm (max 26°C on Tue morning, min 22°C on Wed night). Mainly fresh winds.

Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
ENE
9
2.1
ENE
8
2.1
ENE
8
2.1
ENE
8
2.1
NE
8
2
NE
8
2
ENE
8
2
ENE
8
1.9
ENE
8
1.8
NE
8
1.7
ENE
8
1.6
ENE
7
1.7
ENE
7
1.8
ENE
7
1.4
NE
8
1.8
ENE
7
1.7
ENE
8
1.5
ENE
7
1.4
ENE
7
1.7
ENE
7
1.4
E
7
Wave Graph
Metric surfscale
Energy kJ
656
601
616
630
613
567
581
567
469
398
314
272
302
334
221
340
322
231
203
305
195
Wind (km/h)
30
ENE
35
ENE
25
E
30
ENE
30
ENE
25
E
25
ENE
30
ENE
25
E
30
ENE
25
ENE
25
E
30
E
25
ENE
20
E
30
ENE
25
ENE
25
E
25
ENE
25
E
20
E
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
8:25PM0.81m
9:55AM0.45m
9:17PM0.74m
11:27AM0.55m
10:08PM0.68m
12:22PM0.66m
10:55PM0.62m
1:02PM0.75m
11:38PM0.57m
1:36PM0.83m
00:18AM0.54m
2:07PM0.89m
00:56AM0.51m
Low Tide
12:39PM0.28m
4:06AM0.27m
2:11PM0.37m
4:45AM0.23m
4:07PM0.43m
5:18AM0.19m
5:47PM0.45m
5:47AM0.16m
7:02PM0.43m
6:14AM0.13m
7:59PM0.40m
6:43AM0.10m
8:45PM0.37m
clear
part cloud
rain showers
clear
part cloud
part cloud
clear
part cloud
rain showers
part cloud
part cloud
rain showers
rain showers
clear
clear
clear
part cloud
part cloud
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:43
5:43
5:41
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:53
6:54
6:54
6:54
6:55
6:55
1
1
3
1
1
Temp °C
24
24
23
24
23
22
25
24
23
24
24
23
26
26
24
25
25
23
25
25
24
21
20
20
20
20
19
23
21
21
21
22
21
22
23
22
23
23
21
23
25
23
Swell 1
Height (m)
Direction
Period (s)
0.1
NW
11
0.2
NNW
10
0.4
NW
11
0.4
NW
11
0.4
NNW
16
2
NE
8
0.6
NNW
13
0.6
NNW
12
0.5
NW
12
0.4
NNW
11
0.4
NW
11
0.4
NW
11
0.3
NW
10
0.2
NNW
10
1.4
NE
8
0.4
NW
16
0.5
NW
15
0.6
NW
14
0.4
NW
13
0.5
NW
13
0.9
NNE
8
Energy kJ
5
11
30
29
102
567
116
103
69
48
30
29
16
10
221
91
107
118
61
83
93
Swell 2
Height (m)
Direction
Period (s)
0.1
NW
9
0.1
SE
12
0.1
N
21
0.2
NNW
18
0.4
NW
10
0.6
NNW
15
0.2
NNW
10
0.1
S
11
0.5
NW
11
0.1
N
13
0.1
NW
20
0.3
NW
18
0.2
NNW
9
0.1
NW
9
0.1
NW
9
0.3
NNW
16
0.3
NNE
12
0.5
NW
12
Energy kJ
3
6
8
31
28
142
9
2
58
3
15
51
9
3
3
49
29
74
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.4
NW
10
0.3
NW
10
0.1
S
11
0.1
S
15
0.1
N
13
0.2
NNW
10
0.2
NNW
9
0.1
N
14
0.3
NNE
13
0.1
N
8
0.3
NNE
13
Energy kJ
6
5
5
28
16
2
5
3
9
8
4
31
1
34
Wind waves
Height (m)
Direction
Period (s)
2.1
ENE
9
2.1
ENE
8
2.1
ENE
8
2.1
ENE
8
2.1
NE
8
2
ENE
8
2
ENE
8
1.9
ENE
8
1.8
NE
8
1.7
ENE
8
1.6
ENE
7
1.7
ENE
7
1.8
ENE
7
1
ESE
7
1.8
ENE
7
1.7
ENE
8
1.5
ENE
7
1.4
ENE
7
1.7
ENE
7
1.4
E
7
Energy kJ
656
601
616
630
613
581
567
469
398
314
272
302
334
99
340
322
231
203
305
195
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
3
1
1
2
1
3
Distance (km)
113
68
61
61
61
61
61
68
61
68
61
61
71
71
61
71
61
61
71
61
70
Best forecast wave conditions in Big Island
Rating
(10 max)
2
2
1
2
2
1
1
1
1
1
1
2
2
2
3
2
2
2
2
3
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
3
3
1
1
3
2
1
3
2
2
3
3
2
5
2
2
4
Header Global
Rating
(10 max)
5
4
8
5
5
5
5
5
5
4
5
5
5
6
6
6
5
7
9
9
7
  • 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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