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Surf Forecasts:

Mahai'ula Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 pm Monday 12 Jan 2026 HST
Forecast update in hr  min  s Forecast update imminent
Mahai'ula Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahai'ula Bay sea temperature is
26.1° C
 (Which is 1.4°C warmer than normal for this time of year)

How big are the waves at Mahai'ula Bay today?

The current surf forecast for Mahai'ula Bay at 10PM is: 1.3m 16s primary swell from a Northwest direction and 0.6m 17s secondary swell from a West-northwest direction (forecast issued at 07:00pm January 12). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (12 Jan)--
Afternoon (12 Jan)2.5ft (0.7m)13s
Evening (12 Jan)4.5ft (1.3m)16s

Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM
Rating
(10 max)
2
3
3
4
4
4
3
2
2
2
3
3
3
1
1
0
0
1
0
0
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
NW
1.3
NW
1.3
NW
1.8
NW
1.8
NW
1.8
NW
1.8
NW
1.8
NW
1.7
NW
1.6
NW
1.6
NW
1.6
NW
1.5
NW
1.3
NW
1.2
NW
1.1
NW
1
NW
1
NW
0.9
NW
0.9
NW
0.7
NW
0.8
WNW
0.7
NW
0.7
NW
Period(s) (?)181716161616151414141413131313131313121212121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7038868971532162216021380137411631049911852755618488374321311223216149192141139
Wind
(km/h)
5
WSW
5
WNW
15
NE
15
NE
10
NE
10
NE
10
SW
10
WSW
10
W
5
NW
0
SW
5
S
10
S
5
SW
5
WSW
30
SSW
30
SSW
20
S
25
S
20
S
15
S
15
S
10
WSW
15
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		glasscross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		ononglasscross-
off		cross-
off		crosscross-
on		crosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		cross-
on
High Tide
/ height (m)
1:02AM
0.68
11:47AM
0.30
1:44AM
0.72
1:05PM
0.29
2:22AM
0.77
1:57PM
0.30
Low Tide
/ height (m)
8:56AM
0.28
5:45PM
0.13
9:23AM
0.23
6:36PM
0.11
9:48AM
0.20
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Sunrise-----7:01-------7:01-------7:01--
Sunset6:02-------6:04-------6:04-------
clear
rain showers
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
Rain (mm)
-11--------------------2
Temp. °C242323232323242424232323222324252524232323232424
Feels °C (?)262624232424262526252625232526232222212122222425
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mahai'ula 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.

View detailed surf forecast for Mahai'ula Bay at:
surf-forecast.com

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