Waipio Bay Surf Break

Lat Long: 20.12° N 155.58° W

Waipio Bay Surf Forecast and Surf Report

Issued: 7 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Waipio Bay sea temperature is
26.9° C
0.4° 

Waipio Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Waipio Bay surf forecast from 19 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 5PM (local time) - 3ft (0.9m), 7s period, NE swell with glassy winds.
  • Most powerful swell: Monday 24 Aug, 5PM (local time) - 7ft (2.1m), 8s period, E swell with 593 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 5PM (local time) - 3ft (0.9m), 7s period with NE swell.

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 Thursday (Aug 20) at 5PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.7m and 7s. 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 2.1m 8s and forecast to arrive on Monday (Aug 24) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 13s period and expected on Wednesday (Aug 19) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 20th Aug)3ft (0.9m) 7s
Best Surf 5PM (Thu 20th Aug)3ft (0.9m) 7s
Most Powerful 5PM (Mon 24th Aug)7ft (2.1m) 8s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Wed night. Warm (max 27°C on Tue morning, min 25°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Fri afternoon. Warm (max 29°C on Sat morning, min 26°C on Fri night). Mainly fresh winds.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
1
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)
1.3
ENE
8
1.4
ENE
8
1.2
ENE
8
1.3
ENE
8
1.3
ENE
8
1.2
ENE
8
1.2
ENE
7
0.9
NE
7
1.1
E
7
1.5
E
6
1.7
E
6
1.3
E
8
1.7
E
7
1.7
E
8
1.7
E
9
1.8
E
9
1.8
E
9
1.7
E
9
1.9
E
8
2.1
E
8
2
E
8
Wave Graph
Metric surfscale
Energy kJ
191
232
197
229
196
161
142
69
116
151
190
198
303
401
440
505
505
439
501
593
535
Wind (km/h)
15
ENE
15
ENE
15
ENE
15
ENE
15
ENE
10
E
10
NNE
5
ENE
10
ESE
20
E
20
E
20
E
25
E
30
E
25
E
30
E
35
E
20
E
25
E
25
E
20
E
Wind State
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
glassy
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
5:20PM0.57m
8:53AM0.66m
10:43AM0.69m
11:52AM0.74m
12:36PM0.79m
11:16PM0.41m
1:09PM0.83m
00:13AM0.45m
1:38PM0.87m
00:55AM0.50m
Low Tide
1:00PM0.49m
00:42AM0.22m
1:35AM0.23m
2:58AM0.24m
4:24AM0.22m
8:02PM0.38m
5:27AM0.18m
8:07PM0.35m
6:14AM0.13m
8:22PM0.32m
part cloud
part cloud
part cloud
part cloud
cloud
thunderstorm
clear
thunderstorm
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:03
6:03
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:47
6:46
6:45
6:45
6:45
6:44
 mm
1
1
1
Temp °C
27
27
26
27
27
26
27
27
27
28
28
27
29
29
26
29
29
27
28
28
26
Feels °C
28
29
28
30
31
29
31
32
32
29
29
28
29
28
25
27
27
26
27
28
26
  • 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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