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Surf Forecasts:

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

information circle48hr Weather and Surf, issued 1 am Saturday 31 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
25.4° C
 (Which is slightly warmer than usual)

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

The current surf forecast for Mahai'ula Bay at 4AM is: 2.1m 16s primary swell from a Northwest direction (forecast issued at 01:00am January 31). An open ocean swell of 0.2m 14s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 4.

Time (HST) & DateWave HeightWave Period
Morning (31 Jan)7ft (2.1m)16s
Afternoon (31 Jan)6ft (1.9m)15s
Evening (31 Jan)5ft (1.6m)14s

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
Saturday
31
Sunday
01
Monday
02
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
4
4
4
4
2
2
3
2
3
3
3
2
1
0
1
2
1
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
NW
2.1
NW
2.1
NW
2.1
NW
2
NW
1.9
NW
1.8
NW
1.6
NW
1.6
NW
1.4
NW
1.4
NW
1.4
NW
1.2
NW
1.1
NW
1.1
NW
0.9
WNW
0.9
WNW
0.9
WNW
0.8
WNW
0.7
NW
0.7
NW
0.7
WNW
0.4
NW
0.6
NW
Period(s) (?)151616161616151514141414131313121212121211111716
Wave
Graph
(?)Metric surfscale
Energy kJ (?)186021582185205419331761143611241002822721661501424418268255222177140133114107165
Wind
(km/h)
10
NE
5
ENE
0
ESE
5
S
10
WSW
10
WNW
10
NW
10
N
5
N
0
S
0
SE
5
SE
10
WSW
10
WSW
10
WSW
5
SSW
10
S
15
S
15
S
20
S
25
SSW
30
SSW
25
SSW
20
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		glassglasscross-
on		oncross-
on		cross-
on		glassglassglassglasscross-
on		cross-
on		cross-
on		glasscross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscross-
off
High Tide
/ height (m)
3:10AM
0.91
3:08PM
0.37
3:49AM
0.91
3:52PM
0.41
4:25AM
0.89
4:35PM
0.45
Low Tide
/ height (m)
10:16AM
0.11
8:36PM
0.00
10:46AM
0.09
9:23PM
0.01
11:15AM
0.08
Saturday
31
Sunday
01
Monday
02
Sunrise---6:58-------6:58-------6:58----
Sunset------6:15-------6:15-------6:15-
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C242424232524242323232323252524232323222325252423
Feels °C (?)262627252725262526272625262626262523212122222223
  • 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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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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