Surf Forecast Surf Report
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Beach And Reef
Waimanu Bay location map

Waimanu Bay surf Forecast / HAW – Big Island / USA

12 Day Weather and Surf, issued 7 pm Thursday 18 Apr 2024 HST
Forecast update in  hr  min  s Update imminent
Waimanu Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanu Bay sea temperature is 24.2°C (Statistics for 18 Apr 1981-2005 - mean: 24.4 °C max: 25.2 °C min: 23.3 °C)
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
Waimanu Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanu Bay sea temperature is 24.2°C (Statistics for 18 Apr 1981-2005 - mean: 24.4 °C max: 25.2 °C min: 23.3 °C)


Best Forecast Surf Conditions for Waimanu Bay this week:

The surf forecast for Waimanu Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Apr 18) at 11PM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.6m and 8s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Waimanu Bay in the next 12 days are 2.2m 8s and forecast to arrive on Thursday (Apr 25) at 2PM. 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 13s period and expected on Thursday (Apr 25) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 18th Apr)4ft (1.2m) 10s
Best Surf 2PM (Sun 21st Apr)4ft (1.2m) 13s
Most Powerful 2PM (Thu 25th Apr)7ft (2.2m) 8s

Table - best surf conditions forecast for Waimanu Bay over the next 12 days.

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Quick surf report for Waimanu Bay:

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Updates in  hr  min  s Update imminent
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
N
1.2
N
1.3
ENE
1.5
ENE
1.5
ENE
1.4
ENE
1
N
1.1
N
1.3
NNW
1.3
NNW
1.2
N
1.1
N
0.9
NNW
1.6
ENE
1.7
E
1.4
ESE
1.9
E
2.2
ENE
2.1
E
2.1
E
2.2
E
1.8
E
1.9
E
2
E
1.6
E
1.8
E
1.8
ENE
1.7
ENE
1.8
ENE
1.9
ENE
1.8
ENE
2.1
ENE
2.2
ENE
1.9
ENE
2.1
ENE
2.1
ENE
Period(s) (?)10886661413131312121276777788888888888888888
Wave
Graph
(?)Metric surfscale
Energy (?)262160176161140118383421590563446359228214239199381500478572624428464526349428448392437485437560599497574574
Wind
(km/h)
20
E
20
ENE
20
ENE
15
ENE
15
ENE
15
ENE
15
E
10
ENE
15
E
15
E
25
ENE
25
ENE
25
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
20
E
20
ESE
25
E
30
E
25
E
25
E
25
E
25
E
20
E
20
E
20
E
25
ENE
20
E
20
E
20
ENE
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
crosscross-
on
crosscrosscross-
on
cross-
on
crosscross-
on
cross-
on
crosscross-
on
cross-
on
crosscross-
on
cross-
on
crosscross-
on
cross-
on
High Tide
/ height (m)
12:26AM
0.74
1:10PM
0.61
12:54AM
0.72
1:40PM
0.69
1:20AM
0.70
2:11PM
0.77
1:45AM
0.67
2:41PM
0.83
2:10AM
0.63
3:13PM
0.88
2:34AM
0.59
3:47PM
0.90
2:58AM
0.55
4:23PM
0.91
3:22AM
0.51
5:03PM
0.90
3:45AM
0.48
5:50PM
0.88
4:09AM
0.44
6:46PM
0.85
4:39AM
0.40
7:52PM
0.83
6:20AM
0.37
Low Tide
/ height (m)
7:05AM
0.23
6:46PM
0.30
7:22AM
0.19
7:31PM
0.30
7:40AM
0.16
8:13PM
0.29
7:59AM
0.13
8:54PM
0.30
8:19AM
0.10
9:35PM
0.31
8:42AM
0.08
10:16PM
0.33
9:06AM
0.07
11:01PM
0.35
9:34AM
0.08
11:54PM
0.38
10:05AM
0.09
1:04AM
0.40
10:42AM
0.11
2:51AM
0.40
11:27AM
0.16
4:36AM
0.36
12:32PM
0.22
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
Sunrise-6:00--6:00--5:58--5:58--5:56--5:56--5:56--5:54--5:54--5:54--5:52--5:52-
Sunset--6:42--6:42--6:43--6:43--6:43--6:44--6:44--6:44--6:45--6:45--6:45--6:45
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Rain (mm)
---1--------3-----------------------
Temp. °C232424232424232425232524222423222424222424232525232425222525232525232524
Feels °C (?)232324232324232526232322202221202223202223222424212223202424222325222423

Short Range Forecast: Some drizzle, heaviest during Fri night. Warm (max 25°C on Sun afternoon, min 22°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Mon night. Warm (max 25°C on Mon morning, min 22°C on Sun night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 25°C on Fri morning, min 21°C on Thu night). Mainly fresh winds.

Long Range Forecast: Mostly dry. Warm (max 25°C on Sun morning, min 22°C on Sat night). Wind will be generally light.

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Waimanu Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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 12 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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