Waimanu Bay Surf Break

Lat Long: 20.15° N 155.64° W

Waimanu Bay Surf Forecast and Surf Report

Issued: 7 pm 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Waimanu Bay sea temperature is
26.8° C
0.6° 

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 2 Aug 2026:

  • Most powerful swell: Monday 3 Aug, 11PM (local time) - 5ft (1.6m), 11s period, ENE swell with 582 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 1.6m 11s and forecast to arrive on Monday (Aug 03) 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 0.4m 3s period and expected on Wednesday (Aug 05) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Mon 3rd Aug)5ft (1.6m) 11s

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


Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Tue night). Wind will be generally light.

Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
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
1
1
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
ENE
8
2
ENE
8
1.9
ENE
8
1.6
ENE
8
1.5
ENE
8
1.4
ENE
8
1.6
ENE
11
1.5
ENE
11
1.5
ENE
10
1.3
ENE
10
1.2
ENE
9
1.2
ENE
9
0.8
ENE
8
1.1
ENE
8
1.2
ENE
8
1.3
E
5
1.5
E
7
1.6
E
7
1.5
E
7
Wave Graph
Metric surfscale
Energy kJ
550
537
477
331
302
273
572
496
473
318
232
222
88
159
169
71
202
240
226
Wind (km/h)
25
E
25
ENE
20
ENE
20
E
15
ENE
10
ENE
10
E
15
ENE
15
ENE
10
E
15
ENE
15
ENE
15
E
20
E
20
E
20
E
20
E
25
E
25
E
Wind State
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
High Tide
5:04AM0.60m
5:08PM0.80m
6:00AM0.62m
5:31PM0.73m
7:12AM0.64m
5:54PM0.65m
8:48AM0.67m
6:15PM0.57m
10:31AM0.74m
11:46AM0.83m
9:17PM0.44m
Low Tide
11:22PM0.23m
10:37AM0.26m
11:50PM0.20m
11:23AM0.35m
00:24AM0.19m
12:26PM0.45m
1:07AM0.17m
2:26PM0.52m
2:05AM0.16m
3:19AM0.14m
7:38PM0.43m
4:35AM0.10m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:59
6:58
6:58
6:57
6:57
6:55
 mm
Temp °C
25
27
26
25
27
27
26
27
27
26
27
27
26
26
26
25
27
28
26
Feels °C
23
26
26
25
28
29
28
29
29
28
28
28
28
27
28
27
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 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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