Waipio Bay Surf Break

Lat Long: 20.12° N 155.58° W

Waipio Bay Surf Forecast and Surf Report

Issued: 7 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Waipio Bay sea temperature is
26.9° C
0.6° 

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 9 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 8PM (local time) - 11ft (3.5m), 13s period, ENE swell with onshore winds.
  • Most powerful swell: Sunday 16 Aug, 11AM (local time) - 13ft (4.0m), 12s period, ENE swell with 5,152 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 8PM (local time) - 11ft (3.5m), 13s period with ENE 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 Saturday (Aug 15) at 8PM. The primary swell is predicted to be 3.5m and 13s period. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Waipio Bay in the next 16 days are 4.0m 12s and forecast to arrive on Sunday (Aug 16) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 10s period and expected on Monday (Aug 10) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 15th Aug)11ft (3.5m) 13s
Best Surf 8PM (Sat 15th Aug)11ft (3.5m) 13s
Most Powerful11AM (Sun 16th Aug)13ft (4.0m) 12s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun afternoon. Warm (max 29°C on Mon morning, min 25°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Fri night. Warm (max 28°C on Thu afternoon, min 25°C on Wed morning). Wind will be generally light.

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
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
1
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)
1.8
E
8
1.8
E
8
1.7
E
8
1.6
E
8
1.6
ENE
8
1.4
ENE
8
1.4
ENE
7
1.4
ENE
8
1.3
ENE
8
1.2
ENE
7
1.2
ENE
7
1.4
ENE
7
1.4
ENE
7
1.5
ENE
8
1.6
ENE
8
1.4
NE
8
1.6
E
12
2.2
E
11
2.5
E
11
3
E
13
3.5
ENE
13
Wave Graph
Metric surfscale
Energy kJ
391
412
365
308
316
226
220
226
196
164
160
178
193
240
322
246
722
1208
1663
2800
3940
Wind (km/h)
20
ENE
20
E
20
E
20
ENE
20
ENE
20
E
20
ENE
20
ENE
15
E
20
ENE
20
ENE
20
E
25
ENE
25
ENE
20
ENE
25
ENE
20
ENE
15
ENE
25
ENE
20
NE
10
NE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
on
cross-on
cross-on
on
on
cross-on
on
on
on
High Tide
1:25PM0.98m
00:31AM0.47m
2:05PM1.02m
1:25AM0.52m
2:41PM1.03m
2:14AM0.56m
3:15PM1.01m
3:00AM0.61m
3:46PM0.96m
3:46AM0.64m
4:14PM0.89m
4:32AM0.66m
4:38PM0.81m
Low Tide
8:23PM0.33m
6:36AM0.02m
8:51PM0.29m
7:25AM-0.00m
9:19PM0.25m
8:11AM0.01m
9:48PM0.23m
8:54AM0.06m
10:15PM0.20m
9:36AM0.13m
10:43PM0.19m
10:18AM0.22m
11:09PM0.18m
clear
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:00
6:00
6:01
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:53
6:52
6:52
6:52
6:51
6:51
 mm
2
2
3
2
2
Temp °C
28
28
27
29
28
26
27
27
25
27
27
25
27
28
26
27
27
25
28
27
26
Feels °C
29
29
29
30
29
27
27
27
25
27
27
25
27
28
26
26
26
25
29
27
28
  • 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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