Waimanu Bay Surf Break

Lat Long: 20.15° N 155.64° W

Waimanu Bay Surf Forecast and Surf Report

Issued: 1 pm 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Waimanu Bay sea temperature is
26.3° C
0.4° 

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


Waimanu Bay surf forecast from 15 Jul 2026:

  • Most powerful swell: Saturday 18 Jul, 8PM (local time) - 6ft (1.8m), 8s period, E swell with 443 kJ wave energy.

Best Forecast Surf Conditions for Waimanu Bay this week:

The most powerful waves expected at Waimanu Bay in the next 16 days are 1.8m 8s and forecast to arrive on Saturday (Jul 18) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 16s period and expected on Wednesday (Jul 15) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sat 18th Jul)6ft (1.8m) 8s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Sat morning, min 23°C on Sat night). Wind will be generally light.

Tue
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
NNE
8
1
NNE
8
1.2
ENE
7
1.4
ENE
7
1.1
E
7
1.4
E
6
1.5
E
6
1.2
E
6
1.2
E
6
1.1
E
7
1.3
E
7
1.7
E
8
1.8
E
8
1.7
E
8
1.5
E
8
1.6
ENE
8
1.4
ENE
8
1.5
ENE
7
1.4
ENE
7
1
E
7
1.4
ENE
7
Wave Graph
Metric surfscale
Energy kJ
107
117
138
192
110
121
146
115
119
110
181
373
432
403
309
341
232
228
203
100
173
Wind (km/h)
10
E
10
ESE
20
ENE
20
E
15
E
20
E
20
E
20
E
20
ENE
20
E
20
E
20
E
25
ENE
20
E
20
ENE
15
E
15
E
15
E
15
ENE
15
E
15
ENE
Wind State
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
High Tide
3:43PM1.08m
3:03AM0.51m
4:20PM1.05m
3:53AM0.53m
4:54PM0.98m
4:46AM0.54m
5:25PM0.90m
5:44AM0.55m
5:53PM0.81m
6:53AM0.56m
6:16PM0.72m
8:20AM0.59m
6:34PM0.63m
10:08AM0.64m
Low Tide
10:30PM0.27m
9:02AM-0.02m
11:05PM0.26m
9:44AM0.05m
11:40PM0.24m
10:27AM0.15m
00:14AM0.23m
11:10AM0.26m
00:49AM0.22m
12:00PM0.38m
1:26AM0.22m
1:10PM0.48m
2:08AM0.22m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:52
5:52
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:05
7:05
7:05
7:04
7:04
7:04
7:04
 mm
Temp °C
26
25
26
27
25
27
27
26
26
26
25
27
27
25
26
26
25
26
26
25
26
Feels °C
28
27
26
27
26
27
28
27
26
27
25
27
27
25
26
26
25
26
26
25
27
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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Information about the Waimanu Bay Surf forecast

The above surf forecast table for Waimanu Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waimanu Bay can be found by selecting the local surf guide option on the grey menu. Our Waimanu 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 (Waimanu 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 Waimanu 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.

Waimanu Bay is 74 km (46 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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