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

information circle48hr Weather and Surf, issued 1 am Thursday 22 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
25.5° 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 5AM is: 1.3m 14s primary swell from a West-northwest direction (forecast issued at 01:00am January 22). An open ocean swell of 0.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (22 Jan)4.5ft (1.3m)14s
Afternoon (22 Jan)4ft (1.2m)14s
Evening (22 Jan)4ft (1.2m)13s

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

Updates in  hr  min  s Forecast update imminent
Thursday
22
Friday
23
Saturday
24
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
3
2
2
1
0
0
0
0
2
2
1
1
1
1
2
2
0
1
1
1
0
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
1.3
WNW
1.3
WNW
1.3
WNW
1.3
WNW
1.3
WNW
1.2
WNW
1.2
WNW
1.2
NW
1.1
NW
1.1
NW
1.1
NW
1.1
NW
1
NW
0.9
WNW
0.9
WNW
0.9
NW
0.8
WNW
0.7
NW
0.7
NW
0.7
WNW
0.6
WNW
0.6
WNW
0.5
NW
0.4
WNW
Period(s) (?)151414141414131313131313131312121212121212121211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)73070163863862151547950939438838237632127726420918414414212391916651
Wind
(km/h)
10
SSE
10
SW
5
NE
10
NNE
15
NNW
15
NW
20
N
15
NNE
5
ENE
5
S
10
SSW
10
SSW
10
N
10
N
5
NNW
5
ESE
10
SW
5
SW
0
E
0
SSW
10
SW
15
WNW
10
NNE
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
cross-
off
crosscross-
on
cross-
on
cross-
on
crosscross-
off
cross-
off
crosscrosscrosscross-
on
glassglasscrossglassglassglasscross-
on
oncrossglass
High Tide
/ height (m)
6:00AM
0.75
6:47PM
0.48
6:29AM
0.68
7:45PM
0.53
6:58AM
0.59
Low Tide
/ height (m)
11:17PM
0.15
12:51PM
0.10
12:06AM
0.22
1:20PM
0.09
1:07AM
0.29
1:52PM
0.09
Thursday
22
Friday
23
Saturday
24
Sunrise---7:01-------7:01-------7:01----
Sunset------6:09-------6:09-------6:10-
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
Rain (mm)
------------------------
Temp. °C232322232425242324232323232424242323232325252524
Feels °C (?)242523232425232326242424242526262425252525252626
  • 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

Latest Updates

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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest